Engine Only Runs On Choke

Since the early 1980's, the Edelbrock Total Power Package System has solved the parts matching puzzle for many street performance enthusiasts. The engine started on the first pull with the new carb, but will only run on full choke. One more thing it may be is a bad diaphram gasket. As soon as I give it revs the choke automatically disengages & the engine stops straight away. not sure I believe it needs a carb kit.   The bike came with. use only stabilized gas ( marine grade Stabil, StarTron, Seafoam, etc. When the engine is running, electrical current heats some oily stuff inside the choke, which expands, and pushes out this brass part. So, fuel hose isn’t out of this circle. 382 cc Auto-Choke Engine 6-Speed Manual Drive Gas Rear Engine Riding Lawn Mower with Mulch Kit Included $1299. before I sent the carb out for repair it would only run full power no idle. I would not have thought you could clean a jet by immersing the carb without at least partial dismantling. it will run in choke but when it dies your supposed to go to 1/2 choke does not start or not for very long. To keep your small engine running smoothly, make sure you know the special considerations for using E-10 gas. Now when i start it,it still has to be on full choke but it only runs at 2,000 rpms now. The carbs are running 132. - put in new fuel lines - fuel filters with fresh gas - replaced fuel pump bulb - put in brand new carburator. choke — A butterfly valve or plate located near the top of the carburetor that limits or restricts the amount of air allowed to enter the carburetor, thus enriching the fuel air mixture and enabling the vehicle to start and run more easily. Now it stalls if I don't keep priming it ("Mega Choke"). When you let the engine idle cold it takes the longest possible time to warm up, so you are The choke usually "chokes" the air supply into the engine so it gets more petrol than usual. This did the trick for me. With no choke it runs, but stumbles slightly. A guy starts his bike on choke, runs into the house for a minute or so to finish whatever, the phone rings and all of a sudden the phone call is more important than the bike bike ride and the bike is forgotten. If you have just rebuilt the engine, more likely to be the latter, if it was runnning fine recently, more likely to be a blocked main jet. With one click it is a bit smoother, and with two clicks it runs the smoothest. This video series is to go about troubleshooting to see what the issue is. If you have a voltmeter you can measure the resistance across the leads of the choke. (If you have a working intake heater, that will help, but you will get by without one if you don't)-----Once the engine starts to run, the idle will CREEP. If the engine only runs with the choke full on it means you have a vacuum leak and the engine runs too lean with the choke off. Maybe choke needed adjustment before you bought it. Tiller is only five years old and is used maybe at most 4 times a year. Discussion Starter. You can install an oil sender providing a switch signal used on way laters cars, what, with a slight modification on your wiring, can become on a switch on signal to the choke which it was the purpouse of them. 7 to 1 to be technically correct) although slightly richer or leaner may be needed. I could get it to crank and rumble but not stay running. ALWAYS shut the choke off ASAP on ANY motor for this same reason. With the choke off, it starts backfiring. 2 hours later Starts clean then in 30 seconds is back to only running on full choke and dying with throttle. The issue with this Honda GX160 is that it only runs with the Choke on. Why your dirt bike will only run on choke… When you turn the choke on for a carburetor, it is creating a rich condition. Why Does my Small Engine Run Better with the Choke on? Unfortunately, we hear this question asked more often than ever before. It seems to me that there is not enough fuel flowing through the carb. New problem is the engine bogs down an dies after running under load (edging) for 3-4 minutes and engine won't restart until it cools down a bit--say 3 to 5 minutes. Still runs fine one or two clicks off CHOKE, but when I flip it any further toward RUN it falls on it's face and dies. When the "choke" is on, it opens up an additional circuit that feeds extra fuel into the ventura. This video series is to go about troubleshooting to see what the issue is. If it has a fuel system like a fairly modern motorbike, there will be a suction tube from the inlet that opens the petrol tap when the engine is running. I Run my choke full open for a few minutes than push half way in and run like that for less than a mile and push in just crack The only jets that can be changed are your pilot and main jets, those are for above idle engine speeds, so don't touch them. It idles right t 700 RPMS without the choke and nice and smooth. I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. Double Bagger for Cub Cadet, Troy-Bilt and Craftsman Rear Engine Lawn Mowers (2013 and After). The bike only had 617 miles on it. The purpose of the choke is to temporarily deliver an overly rich mixture, if need when cold, to assist with starting the engine. Engine Only Runs On Choke/2 Stroke Cycle/Engine Idles But Won'T Rev Up/Bog Down/Chainsaw/Trimmer/Atv. But then if you put full choke on again it would idle fine (fast idle on full choke). This creates a richer fuel condition which is just what a cold engine needs. I resuscitated my small Mercury that only kept running with the choke pulled. Here's a video (for sound) to help the diagnosis. Let the engine warm up for a couple minutes before trying to tune any more. The automatic choke is usually a black cylindrical object attached to the carburetor with a couple of wires coming out of it as shown on the left. When i give it throttle it pops and stumbles and then catches. The bike would not idle well, the enricher only helped keep it running by cranking the RPMs. The mixture is much, much too rich, the engine revs much too high, and the bike is almost impossible to ride for any significant distance. Won't Start, Flooded - Most of these engines require very little choke and are VERY easy to flood. As the engine warms up, the coil voltage heats an element inside the automatic choke, causing a bi-metal spring to uncoil, opening the butterfly valve, and moves the cam to reduce the idle speed. Why does my Honda lawn mower only run on choke? [email protected]honda Only runs smooth on choke usually means there's blockage somewhere in the carb, often in the main jet or nozzle area. When I began playing with mix, I wrote down the exact Same problem with only running with choke on and running rough. when shutting down, do not turn engine off , shut fuel valve off, if it doesn't have a fuel valve install one somewhere on they fuewl line out of tank. carb kit is $150. As soon as I close the choke a bit or give it a little throttle, the engine will die. It has been sitting for several years with gas in the. Its a blower/vac combo. This video shows the repair of an Older Honda EX1000 Generator. At first I thought it was a fuel related Problem. A little adjustment on. You want to tune the engine by sound. The fuel filter was clogged with colorless, sticky stuff and the float bowl contained a slimy brownish residue. Lack of a choke isn't a big issue under those conditions. Move the choke to run it dies. Of course it became worse with time. A guy starts his bike on choke, runs into the house for a minute or so to finish whatever, the phone rings and all of a sudden the phone call is more important than the bike bike ride and the bike is forgotten. The automatic choke is usually a black cylindrical object attached to the carburetor with a couple of wires coming out of it as shown on the left. This video demonstrates how to clean a carburetor for a small engine that will only run on choke. tried another carb & still the same. Ignition grounding terminal or ground lead not connected at ignition module. Its a blower/vac combo. Only runs on choke. Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. Choke not fully closed. Set the idle RPM with the engine warmed up and the choke valve opened all the way. Engine Runs On Choke Only 2 Stroke 4 Stroke Engines Chainsaw Won T Start Trimmer Atv. Back out ½ turn more, or until the screw does nothing or runs worse then turn back to the point where it ran its best. I have an 026 that only runs with the choke engaged. With the choke off, it starts backfiring. If air is allowed in both directions the valve is bad and should be replaced. Thinking that perhaps something is clogged in the carburetor/jet, I. As the engine runs on choke it can’t be too blocked. I plan on checking the plug tonight once I get off work. Also try pressing the primer button for only 1 second. this is a common problem, and it is caused by clogged passages in a dirty carburetor. My 600 used to only run on full or half choke at the beginning of the season. 2 hours later Starts clean then in 30 seconds is back to only running on full choke and dying with throttle. 5 hp) will have holes in the bowl nut. " This means emptying the fuel tank and then restarting and letting the unit run until all the fuel is consumed and the engine stops. Often the central main jet tube within the carb gets blocked and needs removal for cleaningstrands of grass and fuel gum can often be the culprit. Intake manifolds, camshaft kits, cylinder heads and carburetors are the core of the Power Package. Starts great with choke on, but will only continue running with the choke still on. When I re-installed the carb now the only way the tractor will idle or run full throttle is with the choke fully closed. - there is fuel in the float bowl al the time - cleaned, adjusted and checked ignition - looked for air leaks (false air) On the carb we found an electrical choke or something like that. Obviously a $20 fix is a better fix. Both the manual choke system and the manual primer system engines may experience this similar symptom of running only when the fuel mixture is enriched. Splined carb adjustment tool arrived. In Reply to: TO-35 only runs with full choke posted by Brian Roberson (SC) on October 20, 2002 at 19:20:16: The engine on this tractor, a 1937 John Deere "B", had. have also seen in one or two rare occasions that the "enricher" (what you are calling a choke is not in fact a choke) has been set improperly. The proper choke adjustment will allow the choke plate to close when you advance the throttle a bit on a cold engine before it’s started. I plan on checking the plug tonight once I get off work. let engine run till it runs the gas out of the fuel line and stalls on its own. This pointed to an obstruction in the idle circuit. I have a 1980 CT 110. 5 Intek with the same trouble. Here's a video (for sound) to help the diagnosis. My Lawn Mower Will Only Run on Full Choke To understand this problem, you must understand a little about how a carburetor works. Does anyone have any ideas?. This adjustment if for all Briggs float style carburetors and all Tecumseh float style carburetors. Briggs engine runs only on choke. It runs but only at full choke. The Choke Plate: There are two plates that can close off the airflow through the carburetor. Running overly rich is not good for the engine. Otherwise it would be dumping way to much fuel in the engine and flooding it out. It will not run unles the choke is full. As the engine warms up, the choke coil will continue to open the choke plate, gradually opening it until the choke plate is in a fully opened position. Let the engine warm up for a couple minutes before trying to tune any more. Set the tank on a. If it has a fuel system like a fairly modern motorbike, there will be a suction tube from the inlet that opens the petrol tap when the engine is running. not sure I believe it needs a carb kit. It usually starts OK, but it won't run if the choke is released. My brother-in-law donated it to me. Cricketo99 · Registered. Our repair and symptom guide will help you identify the problem and how to fix it. Usually when the engine will only run on full choke it is because the main jet is partly plugged. When the engine is cold it needs rather more petrol, so the choke closes down the air inlet by a precise amount to compensate and enrich the mixture. Set the idle RPM with the engine warmed up and the choke valve opened all the way. Is It Bad To Run An Engine With The Choke On. Having the choke on and idles proves it is NOT the CDI. Use a can of brake cleaner or engine cleaner {I like to use starting fluid, but it is extremly flammable} spray around the intake and carb gaskets and the engine will change idle when it draws in the fluid. Allow the engine to smooth out. The idle screw (Throttle stop screw) adjusts the speed of the idle. * Note: If you have an automatic choke try disabling the choke and holding it all the way open with a zip tie or other device. A failing auto-choke remains in the ON position at all times, thus it is characterized by the buggy running fine when cold, and hardly running at all when warm. It runs with the choke on because the choke engages the "enricher" circuit. Now when i start it,it still has to be on full choke but it only runs at 2,000 rpms now. Your choke is acting as a band-aid by dumping fuel into the engine at idle but this is much too much fuel for a good mixture and will load up the engine and foul the spark plug. I have a union power pressure washer it runs for 10 minutes and then cuts off and wont work again, it still needs the choke on when the engine is warm and only runs for a few seconds "it still needs the choke on when the engine is warm and only runs for a few seconds"This sounds like a fuel problem such as the carb needs cleaning. reassemble the carbs and. I jus wonder if the float really needs to go back to 1/8". I believe it is the settings that are off, such as the eclip and the air/fuel mixture screw. Running with false enrichining like the choke does, indicates an lean condition. If air is allowed in both directions the valve is bad and should be replaced. My brother-in-law donated it to me. Will go to full rpms and won't die on full choke either. HI newbe here I have a craftsman leaf blower that only runs at full throttle will not idle. In this condition the closed choke provides enough extra fuel to enter the engine to overcome the lack of fuel flowing through the other. RE: I need help fixing small Honda motors that will only run with the choke on. That's the throttle plate. The engine doesn't have to be running. If you leave the ignition switched on the choke should heat up and open. One cause could be an air leak on the carb, head gasket, crankshaft seal. Posted: 17:42 - 07 Jan 2017 Post subject: bike only runs on choke hello i have a 70cc peugeot xp6, it was a non runner until i put a brand new carb on plus a new plug and change of oil and 2 stroke. 5 Intek with the same trouble. When required to run the. However, a clogged pilot jet will reduce the fuel proportion in it. Engine Only Runs on Choke/2 Stroke Cycle/Engi. If the choke lever uses a detent spring to control the choke plate position, guide the spring into the notched slot on the choke lever. I have cleaned out the carb jets twice, primary and main, all clear. carb kit is $150. Then I have to pump the gas alot to get it to stay running. Since you just got the engine done I would double check the carburetor. As soon as the engine starts, a vacuum is applied to the vacuum choke pull-down servo, which in turn pulls the choke open slightly--just enough to allow enough air into the engine to keep it running. While I was riding the bike I slowed down into a corner and when I tried to gas out of the corner the bike sputtered out and shut off. With run times of up to 18 hours at ¼ load, the EU7000is uses smart electronic fuel injection technology that increases fuel efficiency while eliminating the engine choke and reducing fuel-associated carburetor problems. I sprayed some carb cleaner around the engine intake between carb and engine, no RPM change so it is air tight. It will idle fine and rev fine with the choke on and will only operate on 1/2 choke with the revs way up. One more thing it may be is a bad diaphram gasket. After doing so it ran great but had to always have choke on partially to get it to run good. When retrieving trouble codes, only consider related codes to a specific misfire problem, like an ignition coil failure code. I abandoned that theory after I dropped the bowl and found that the float is a one-piece molded plastic piece. The carbs are running 132. Currently it only runs with the choke on and it idles at about 20 mph sitting on the moped going down the street. Pushing it in closes off that gas, and leans out your mix so there's not enough gas to run. 90 Hp Johnson Outboard Choke. Take the carbs back off, remove the mixture screws and the slow (pilot) jets and blow carb cleaner and compressed air through the circuits. Understanding the Choke During engine crank on a cold start, a number of issues arise due to the temperature of the air and the engine itself, along with the slow speed of the pistons. Lack of a choke isn't a big issue under those conditions. This adjustment if for all Briggs float style carburetors and all Tecumseh float style carburetors. The pilot jets on these can be where most of the problem lies. Drained gas and replaced with new. The Choke Plate: There are two plates that can close off the airflow through the carburetor. After doing so it ran great but had to always have choke on partially to get it to run good. Jump to Latest Follow 1 - 4 of 4 Posts. Engine only runs with full choke Fuel System Engine only runs with full choke - Moyer Marine Atomic 4 Community - Home of the Afourians Return to the home page. Any ideas on what the problem is? Thanks!. New carburetor, new fuel, flush out fuel tank, clean air filter ran without fuel cap on to make sure fuel tank was not vapor locked. Jump to Latest Follow 1 - 11 of 11 Posts. Maybe choke needed adjustment before you bought it. As soon as I close the choke a bit or give it a little throttle, the engine will die. Depends on your engine - what I mean is check when you take the carb off choke that the choke lever actually activates to allow more air in. None of this had been happening the day before and ran excellent. powermate 3000 generator only will run on choke? fixed and oil chang. If you find it not running on one carburetor, check the banjo bolt and/or replace those rubber grommets. However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. In a manually operated choke, the operator must observe the engine start-up and must adjust the choke valve after the engine has started. It's the only electrical powered component attached to the carburetor, so it's usually not hard to spot. Jump to Latest Follow 1 - 4 of 4 Posts. If your grass trimmer only runs in choke, there are a few solutions that may fix the problem and let you get back to tackling your yard. The richer fuel mix helps counteract the dense oxygen rich cold air. Start the motor and allow it to run at approximately 1500 rpm or so. You do want to make sure that it is set right and that it is clean. You either missed a jet or the carburetor cleaner just did not get to the problem. No problem engine running at idle. The choke increases the amount of fuel in the mixture, creating a richer mixture. You choke it and pull it until you hear it 'pop' (a sharper sound than it initially makes). Having a hard time getting the engine started, 2. It also lacks power and after running for a while will stall. If the engine fails to stop, move the choke lever to the FULL CHOKE position to kill the engine. It was running fine and then acted like it was running out of gas, then finally stopped running. I've worked on small engines my entire life,so here are a few tips. ) The idle will edge up as the engine warms up, and the fuel start to atomize in a VERY COLD intake. Started right up but i can only get it to run on full choke. This is where the idle should be when warmed up. Engine requires a good mixture of fuel and air to operate correctly. For most 2-stroke engines, you set the engine shut-off switch to 'run'. use only stabilized gas ( marine grade Stabil, StarTron, Seafoam, etc. Starts with choke and runs fine with the choke on, as soon as you turn choke off and apply throttle it cuts out. From my understanding (correct me if I'm wrong), when the choke is all the way out, it should be getting the max fuel flow, right? If that's so, then the engine's RPMs will be high, correct?. Started today and it popped and cracked unless I left throttle in choke position. Holding the primer button in for a longer period of time can cause engine flooding. Opening the choke, blasts fuel into the carbs to keep it going. Intake manifolds, camshaft kits, cylinder heads and carburetors are the core of the Power Package. Fuel injected engines do not utilize a choke system to aid cold weather starts. A side note: I jump start the bike using my car and I keep the the car is running. The choke is only used when starting a cold engine. Started right up but i can only get it to run on full choke. Also replaced the fuel filter and checked the tank vent. just tried starting the bike for the first time in 10 weeks and it will only run on choke. Just something simple you can check on. A side note: I jump start the bike using my car and I keep the the car is running. It has always need a little choke to run smoothly after it warms up. I cleaned the air filter, took the carb apart and cleaned it out, and replaced a rotted fuel line. Click on the image to enlarge it. Recently it has needed full choke just to run, even when warmed up. It works 175MPH. Foreman 450 ES only run on choke. Generator choke on or off. Ideal is tan colored plug, not lean or rich. Engine misfires are something that nobody wants in their engine. Only spray short bursts of about 1/4 second every thirty or forty seconds. When I open the choke and try to give it gas, it sputters and wants to die. Opening the choke, blasts fuel into the carbs to keep it going. On a fully warmed up engine, the choke plate will be completely open. I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. Joined May 2, 2010 · 2 Posts. As the engine warms up, the coil voltage heats an element inside the automatic choke, causing a bi-metal spring to uncoil, opening the butterfly valve, and moves the cam to reduce the idle speed. Is It Bad To Run An Engine With The Choke On. This AM I added some seafoam to the fuel and got it to start. Добавил: Steve's Small Engine Saloon. But since you have tried two differnt carbs then I'm saying it must be a first bike with a tappet issue. The air filter looks fine and the gas cap vent is on. A gasoline engine only needs the choke (strangler) while warming up. Use your ear, not a scope or tuning instruments at this point. White, chalky plug not enough air, running lean. It usually starts OK, but it won't run if the choke is released. It's only for warm weather fun. Allow the engine to come to low idle. Dwight Coleman there are usually only a few possibilities if it only runs with the choke. No matter whether the carb adjustment screws are turned in fully and turned out as much as 8 turns, at about 9 turns they are out. It has always need a little choke to run smoothly after it warms up. Anytime a engine only idles with choke on is pilot jet/idle circut plugged pure and simple. New carburetor, new fuel, flush out fuel tank, clean air filter ran without fuel cap on to make sure fuel tank was not vapor locked. For info specific to your carb, we recommend that you purchase the proper repair. This is similar to when a motor will only run for a few moments after or while pressing the primer bulb. Click on the image to enlarge it. When it warms up, it runs really well. Was recieved as gift in Sept. When I kicked the engine, it would have plenty of power except for the occaisonal sputter. But then if you put full choke on again it would idle fine (fast idle on full choke). We use it all the time. When the problem orginaly happened I could not kick start it at all only bump start with the choke on. The choke un-loader, by use of manifold vacuum, instantly opens the choke plate when the engine is started, but just a little bit. Take the carbs back off, remove the mixture screws and the slow (pilot) jets and blow carb cleaner and compressed air through the circuits. Back out ½ turn more, or until the screw does nothing or runs worse then turn back to the point where it ran its best. To check these valves you must remove them and then try to blow through them each way. Then open the throttle between a 1/16th to an 1/8th of an inch, and still keeping the strangler shut, switch on the ignition. Took it into the JD dealer, he cleaned the vent on the gas cap, it was plugged and would not allow air into the. March 26, 2016, 08:33 PM. NOW, the bike will not run if the choke is pushed in. The problem is as soon as I try and take it out of the full choke position the engine dies. Now, it won't run unless it's on at least half choke. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. Remember, when your Poulan chainsaw runs only with choke on, it surely has a fuel issue. OK sorry guys yes back to the original problem, I pulled the carb off and yes choke is on when up and it only runs in the up position. So here is the story. Take off the dip stick and run the engine for a few seconds. Partial choke is nessesary to smooth out the rough running. - put in new fuel lines - fuel filters with fresh gas - replaced fuel pump bulb - put in brand new carburator. More than that, there is too much choke and the engine will die. Use the choke only as long as necessary to keep the bike running good. If your impulse line comes out of the rocker cover then prime suspect is the rocker cover seal followed by the breather valve. When the engine is running, electrical current heats some oily stuff inside the choke, which expands, and pushes out this brass part. What do you think. Other than that I have to have the choke on or it immediately dies. After getting the old gas out, it will now run. If it rev's up or only runs with the choke applied, it is either running lean or there is a vacuum leak. Have you checked the key in the flywheel?. I was able to adjust (mainly the Low jet) to eliminate the problem whereby engine cut off/died unless on Half Choke. after banging my head against a wall for the last 30 days and living with it fully choked I finally found the problem. As the engine warms up, the choke coil will continue to open the choke plate, gradually opening it until the choke plate is in a fully opened position. Allow the engine to fully warm up before using to mower. Does anyone have any ideas?. If the choke was used to start the engine, move the choke control cable so that the choke arm moves to the OFF position as soon as the engine warms up enough to run smoothly without use of the choke. SOURCE: 350 raptor only runs with full choke on , Hi Mike, You will find that there is a problem with the carbie. 12v with coil and distributor 6v. To get great performance out of any engine, the components must work together. I have a 1980 CT 110. It won't run unless choke is half on. Engine Only Runs on Choke/2 Stroke Cycle/Engi. Last night machine would not start. If the engine idles fast but you need choke at half point, then you probably have a vacuum leak (either at intake manifold gasket or at carb gasket or you have one of the plugs or vacuum fittings in the intake manifold either missing or loose). Later they tell you to activate the choke and , once warmed up to turn it off. The pilot jet is turned out 3 turns as of now. Mikuni VM24SH question - only runs with choke on - CT175 1972 #4 also, i guess you took the emulsion tube out that the little Oring sits on as they grow corrosion & collect crap up around the small holes in that tube, & check the airblead to that tube from the mouth of the carb as can get blocked with crumbling air filter bits. It also lacks power and after running for a while will stall. Now it runs with the choke on, but dies when I put choke off. Push the choke adjustment knob in slowly as the engine is warming up. When you place the choke in the on position, it creates more suction on the throat of the carburetor which creates more vacuum to pull fuel out of the main jet and up through the emulsion tube which mixes air and fuel. I'd also ensure the air filter is clean as that can make the engine run rich and cut out. Most carb equipped bikes built in the last 20-30 years use enrichers rather than a true choke plate. Consequently, the choke should be turned off when the engine starts -- or 10 to 15. But it idles nicely on full. Lift the choke shaft and lever up slightly and turn counterclockwise until the stop on the lever clears the spring anchor. This is a good starting point. If your car runs great when warmed up, but smokes black and hardly runs when you first start it, you may have a bad choke pulloff. Watch out for the gaskets #5 and #7. Also to add, the carb had been professionally serviced at a shop. The engine needs the choke to be engaged as it's warming up, but once the engine is warm, if it dies with the choke open, then one way or another it's a lean condition, and a vacuum leak or improper carburetor adjustments are the most common culprits. I jus wonder if the float really needs to go back to 1/8". The choke is only used when starting a cold engine. Hello I have a 4 cylinder Continental "YO-91" 22522 engine from an oliver hay bine. With the engine running and put your palm over the carb air inlet. This video series is to go about troubleshooting to see what the issue is. Also to add, the carb had been professionally serviced at a shop. Main jet is blocked, the choke is compensating for this. Choke Pulldown. I even installed a carb primer that worked ok. The auto-choke is ON in it's natural state. While I was riding the bike I slowed down into a corner and when I tried to gas out of the corner the bike sputtered out and shut off. ограничивать дебит скважины фонтанным штуцером. I did need to Yeah I corrected myself in my second post. When the choke is on, the vent is closed, blocking air from reaching the chamber. Just had this same issue today with my titan 3 in 1. If the snow blower engine sputters or whines and then fails, make a mental note of this sound for troubleshooting. This page has troubleshooting and repair advice for fixing a riding mower that won't run with the choke off. More than that, there is too much choke and the engine will die. This screw controls the idle speed, the tip should extend about an 1/8 of an inch (4 mm). Re: Engine only runs with choke on Actually, it sounds like the idle circuit is clogged. The issue with this Honda GX160 is that it only runs with the Choke on. The bike only had 617 miles on it. No changes. If you live in hotter, more humid climates, it is much less. when the car starts up, it starts fine. thoroughly cleaned, replaced the gaskets & replaced the throttle speed adjust screw and Pilot screw. horizontal engine. What is the serial number of the engine. As soon as the engine starts, a vacuum is applied to the vacuum choke pull-down servo, which in turn pulls the choke open slightly--just enough to allow enough air into the engine to keep it running. It got a new fuel pump, truck oil. But don't turn it down too much or the engine will die. The issue with this Honda GX160 is that it only runs with the Choke on. The choke blade does open about that far after the engine runs for about 10 seconds and then dies. As soon as I close the choke a bit or give it a little throttle, the engine will die. Discussion Starter. This keeps the choke from opening without the engine running. Took it into the JD dealer, he cleaned the vent on the gas cap, it was plugged and would not allow air into the. The engine speed is preset on this type. So, fuel hose isn’t out of this circle. I have a typical small engine power washer which was running fine the first day I used it this year even on the old fuel. Over use of the choke/enrichener can foul your plugs. It was running fine and then acted like it was running out of gas, then finally stopped running. Check out the video on how to fix and engine backfire. Продолжительность: 10 минут 42 секунды. It will result in a less efficient engine. But once running, it only runs with choke. If i give it any gas, it dies and when i take the choke off, it dies. The main types are the bowl and diaphragm. Now it stalls if I don't keep priming it ("Mega Choke"). That is with throttle full open. By restricting the flow of air into the throat of the carburetor, the choke valve reduces the pressure inside the throat, which causes a proportionally-greater amount of fuel to be pushed from the. Running only when choked indicates too much air into the simple carb, starving for gas. let engine run till it runs the gas out of the fuel line and stalls on its own. With all that said, carb now clean and still same issue it seems it's starving for fuel. Since the early 1980's, the Edelbrock Total Power Package System has solved the parts matching puzzle for many street performance enthusiasts. >"The engine usually runs fine at idle with an occasional misfire (rarely). You could have an air leak on the intake manifold side or a clog somewhere in the carburetor. replacement carb is not available. SOURCE: 350 raptor only runs with full choke on , Hi Mike, You will find that there is a problem with the carbie. Posted: 17:42 - 07 Jan 2017 Post subject: bike only runs on choke hello i have a 70cc peugeot xp6, it was a non runner until i put a brand new carb on plus a new plug and change of oil and 2 stroke. If you put the choke on it will stall the engineso you sure you know which is on and which is off. The only variant was if it half started on the first pull on the choke, we would push the choke half in before the second pull on the rope and she would then happily May need to poke key a few times as engine warms up to richen mixture. Why A 2 Stroke Cycle Engine Will Only Run On ChokeWhy Bog Down TheRepairSpecialist. The choke lever opens and closes a vent to the mixing chamber, which regulates air from the filter when the. My TO-35 runs great except that I have to have the choke full-on. Choke closed closes of the air supply and puts more gas into the engine. One more thing it may be is a bad diaphram gasket. Then open the throttle between a 1/16th to an 1/8th of an inch, and still keeping the strangler shut, switch on the ignition. Just spraying down the air intake with carburetor cleaner probably. Then the engine should run for 3 minutes at least to be fully warmed before shutting it to ensure a fully opened choke plate. With the engine running and put your palm over the carb air inlet. Good for me. A guy starts his bike on choke, runs into the house for a minute or so to finish whatever, the phone rings and all of a sudden the phone call is more important than the bike bike ride and the bike is forgotten. The sad part is that the engine only runs with full choke. We pulled the 302 out of my old capri that had been sitting for a few years and put it in Dad's F250 I drove the capri into the shop and pulled the engine, seemed to run fine but I did not run it long. The choke is only used when starting a cold engine. The choke is only used when starting a cold engine. I have a dt125r 2003 I recently bought as a non runner, I rebuilt the engine all new seals and bearing and gaskets. Clean the main jet and try that. have also seen in one or two rare occasions that the "enricher" (what you are calling a choke is not in fact a choke) has been set improperly. WHY your motorcycle only runs on CHOKE With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. carburator is clean and rebuilt with all new parts. Fuel injected engines do not utilize a choke system to aid cold weather starts. But, if you’ve ever had this problem, you know that running on full choke is not feasible. the engine has been running for more than five minutes. More fuel vapor is present in a hot engine, which requires less choke. Place the choke plate on the shaft with the single notch on the edge toward the fuel inlet. Was recieved as gift in Sept. so i replaced my petcock, which was just pouring gas into my carbs nonstop. The purpose of the choke is to temporarily deliver an overly rich mixture, if need when cold, to assist with starting the engine. Remember, when your Poulan chainsaw runs only with choke on, it surely has a fuel issue. the tractor will start and run but only with the choke engaged. The idle circuit is fed from the main. Engine Idle Surges Up And Down_. its getting enough air, but in order to run right the engine needs the right amount of fuel/air. huger_cycles · Registered. • Rich exhaust when engine is cold. Then, put the screw in about a quarter or half turn again, and lower the idle RPM again. TimOk so its a warm day and this is the first time starting my brand new bike. I have recently changed the oil, the spark plug and the air filter as part of a spring tune up. When the unit is warmed up, it should restart with the choke in the off position. Joined Jan 6, 2009 · 5,116 Posts. have also seen in one or two rare occasions that the "enricher" (what you are calling a choke is not in fact a choke) has been set improperly. If a motorcycle or ATV only runs with the choke on, it’s because the richer “choke on” mixture is actually closer to the engine’s normal operating fuel mixture than the leaner “choke off” mixture. The moment I release the choke, even just release it by a quarter, the engine dies. I was able to adjust (mainly the Low jet) to eliminate the problem whereby engine cut off/died unless on Half Choke. If the engine only runs with the choke full on it means you have a vacuum leak and the engine runs too lean with the choke off. Some bikes have a catalyst in the exhaust now and it can ruin that Running it with the choke on for like 1/2 an hour or all the time instead of setting up the carbs would be a problem. Probably has a bad gasket on the intake manifold,,or carbrator. Dissambled the carb, and gave a good heavy spray of carb cleaner in all visible holes and reassembled. If you warm this bike up with the choke on you have a very fast running very lean out sync engine that is largely air cooled. Engine runs on when switched off. 25181 with a 16HP BF-MS/3265F Onan twin witha DD-15 carb. Choke on, flooding hot engine. Move the choke lever to the "Run" position and pull the starter cord five times if the engine does not start. Since you just got the engine done I would double check the carburetor. But don't turn it down too much or the engine will die. With run times of up to 18 hours at ¼ load, the EU7000is uses smart electronic fuel injection technology that increases fuel efficiency while eliminating the engine choke and reducing fuel-associated carburetor problems. When the "choke" is on, it opens up an additional circuit that feeds extra fuel into the ventura. Sticking (or badly adjusted) float level will cut off air supply and cause flooding and stalling of engine. Clean that out good and it should. 600 f4 and it has been sitting for about 3 months and it will only run on full choke and stutters and will shut off if u take it off of choke. The sad part is that the engine only runs with full choke. I can start it, rev it up, and ride it with the choke out, but as soon as I try to push it in, it dies. What’s wrong? We only need to “choke” a bike when the engine is coldthat is to say not as warm as a cup of coffee. reassemble the carbs and. it will run in choke but when it dies your supposed to go to 1/2 choke does not start or not for very long. This AM I added some seafoam to the fuel and got it to start. As the engine warms up, moving the choke lever to off, opens the flap again. Pull the manual choke knob to decrease the air intake and provide a richer fuel-to-air ratio before you start the ignition. As soon as the choke shutter breaks contact with the casting wall the engine stumbles and dies. Why Does my Small Engine Run Better with the Choke on? Unfortunately, we hear this question asked more often than ever before. Obviously a $20 fix is a better fix. Understanding the Choke During engine crank on a cold start, a number of issues arise due to the temperature of the air and the engine itself, along with the slow speed of the pistons. With only a few hand tools, and about an hour of time, this same procedure could repair a snow blower, lawn mower, generator, or almost anything with a small engine that has this problem. 90 Hp Johnson Outboard Choke. The only variant was if it half started on the first pull on the choke, we would push the choke half in before the second pull on the rope and she would then happily May need to poke key a few times as engine warms up to richen mixture. Take the choke off even just a little and the motor dies. A mower failing to run without having the choke fully engaged is often the result of a faulty carburetor that either needs to be replaced or cleaned. The bike only had 617 miles on it. The richer fuel mix helps counteract the dense oxygen rich cold air. Hello, my Homelite 196cc small engine will only run with the choke on full, and does not make full power, I have two of these engines, and have swapped carbs, and only this one. The only way for that engine to stay running with the choke on is an air leak. Recently it started preforming poorly, would only run on full choke. then after awhile it would not start at all. Still hard time to get started. Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. 5 hp) will have holes in the bowl nut. seems like it is running lean. This is what we did already: - cleaned the carb - cleaned air filter - cleaned fuel tank, lines, pump etc. If the RPM's go up, the idle circuit is lean. During the 2nd carb kit I decided to look over the plastic intake and found the thing leaked like a sive around the entire plastic welded 2 piece seam. Also,2 cycle motors cannot have any air leaks. Of course it became worse with time. Not sure about what the primer bulb feels like when it is running. The moment I release the choke, even just release it by a quarter, the engine dies. Posted: Sun Apr 12, 2015 9:58 pm Post subject: 8n only runs with choke pulled out: This message is a reply to an archived post by Nikedog on September 15, 2009 at 15:19:25. I changed my oil due to the gasoline in there, now my bike will only startup with the choke, then it dies when given throttle. A half choke permitted enough suction for the engine to operate. When the engine is cold it needs rather more petrol, so the choke closes down the air inlet by a precise amount to compensate and enrich the mixture. Only runs on choke. I got it running with a set of new points, a new float, and converted it with an external Onan fuel pump. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. tried another carb & still the same. This pointed to an obstruction in the idle circuit. The Choke Plate: There are two plates that can close off the airflow through the carburetor. Set the chain brake on your saw and put the master control lever into the choke position. it will rev up to about 1000RPM and die, sometimes it'll chug a bit at 200-300RPM. Choke enriches the fuel/air mix. Engine runs on when switched off. You don't want your choke to open because the key is on, you want it to open because the engine is running & warming up. When I began playing with mix, I wrote down the exact Same problem with only running with choke on and running rough. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. Discussion Starter • #1. But eventually I installed a new carb with a new enricher and I was amazed how well the engine started and ran. There are only two adjustments that you can make from outside the carburetor. If a trouble code is present and doesn't pertain to the immediate problem like an EVAP code, ignore it until a later time, when the engine is running properly these codes could cycle out. My 1996 klr650 only runs with the choke on. Use your ear, not a scope or tuning instruments at this point. Most carb equipped bikes built in the last 20-30 years use enrichers rather than a true choke plate. 8-Pin Male Connector Engine Plug; 3-Prong Trim and Tilt female connector Plug ; Only (2) wires were cut by Marina for removal--all other wires intact and uncut; Features Push-to-Choke Switch with positions: Start, Off, and Run; Includes (1) Ignition Key; Also includes a Engine Safety Kill Switch Assembly (positions: Run / Off). The engine starts up quickly. But since you have tried two differnt carbs then I'm saying it must be a first bike with a tappet issue. ) and uses more fuel. The stock 1985 choke runs through the oil pressure switch. One cause could be an air leak on the carb, head gasket, crankshaft seal. TheRepairSpecialist. The fuel filter and fuel pump are good, it seems as. Once the engine starts running, continue to keep the trigger depressed and let it warm-up for 10 seconds, then move the choke to the off choke/ RUN position. Opening the choke, blasts fuel into the carbs to keep it going. You will have to check all vacuum lines, and possibly If your engine only runs with the choke on, that means no gas is coming in via the main circuit, which means it's clogged. In this condition the closed choke provides enough extra fuel to enter the engine to overcome the lack of fuel flowing through the other. At that point turn down the choke a bit, until the revs are at around 2,000 rpm or under. It runs with the choke on because the choke engages the "enricher" circuit. The issue with this Honda GX160 is that it only runs with the Choke on. Joined May 2, 2010 · 2 Posts. This should be sufficient enough for the engine to run properly. If I move it off of full choke it shuts down. TarheelTerp · flipping slumlord. Hard to say what a previous owner may have done. I changed my oil due to the gasoline in there, now my bike will only startup with the choke, then it dies when given throttle. If the choke was used to start the engine, move the choke control cable so that the choke arm moves to the OFF position as soon as the engine warms up enough to run smoothly without use of the choke. If a trouble code is present and doesn't pertain to the immediate problem like an EVAP code, ignore it until a later time, when the engine is running properly these codes could cycle out. Typical problems include hard starting, rough running, a need to adjust the carburetor during use to keep the engine from stalling, a need to rev the engine to keep…. The engine starts up quickly. I believe it is the settings that are off, such as the eclip and the air/fuel mixture screw. With the engine running and put your palm over the carb air inlet. The engine doesn't have to be running. Runs pretty good and putting out 123V with it on semi-choke. They only work under high vacuum conditions like idle and contribute very little additional fuel when the engine is reved up and on the road. Other than that I have to have the choke on or it immediately dies. Most carb equipped bikes built in the last 20-30 years use enrichers rather than a true choke plate. COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. This item: TB 30 in. Now it starts hard and will only run on half choke. Start with both low and high screws at 1 1/2 turns out from fully closed position and see if it will pull fuel,if it does then retune motor. With no choke it runs, but stumbles slightly. Having a hard time getting the engine started, 2. Joined Mar 30, 2009 · 8 Posts. In the float bowl there is only sediment when you take the carb apart, but in a running engine the vibration will cause it to float. Just had this same issue today with my titan 3 in 1. Choking an engine is used when starting during cold conditions on a carberated engine. Hello, my Homelite 196cc small engine will only run with the choke on full, and does not make full power, I have two of these engines, and have swapped carbs, and only this one. You will not know if the BB is missing cause it will look like another hole in the carburetor. 25181 with a 16HP BF-MS/3265F Onan twin witha DD-15 carb. So you either need more fuel or less air. I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. Any ideas?. Our repair and symptom guide will help you identify the problem and how to fix it. tried another carb & still the same. I have a 1992 kawasaki 220a bayou. WHY your motorcycle only runs on CHOKE With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. If it starts without the choke, don't use it. Shutting the Engine Down 1. Disconnecting the Enricher wire (gy6 engines do not have a choke, they have an enricher) will cause it to constantly feed extra fuel. The choke is only used when starting a cold engine.