Engine Only Runs On Choke







If air is allowed in both directions the valve is bad and should be replaced. Finally the engine will start and run, But it only runs with the choke almost closed (about 1/4 open) and the foot pedal at 1 to 2 inches depressed. I find that most often when an engine will only run with choke, the jets on the carb are plugged. With either of it, trucks idles only with choke and when I give gas and turn off choke with full gas it runs but backfires little but as soon as I take off foot, trucks turns off. 1) Choke not set tight enough. I checked for vacume leaks carb manifold vacume lines none. Re: Onan generator only runs on choke If you still have the OEM Facet fuel pump, we found that if it has not run is a while and with its age, the rubber in the diaphrams, there are two small ones in this pump, come apart and get into the carburator. It has a Tillotson HL283 carb. im having a bit of trouble with my engine on my most recent build. ? I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. There may be bad fuel in the gas tank, a loss of air flow to the engine caused by overgrown grass or a dirty air filter, or your carburetor needs to be adjusted or cleaned. The choke is literally an extra air hole opening up. Engine will start but runs poorly or dies: ENGINE STARTS AND DIES, SURGES, OR WILL ONLY RUN ON CHOKE. Even after I allowed the engine to warm up, the engine dies when pushing in the choke. My Honda is roughly 10 yrs old, model HRB216TDA. When I got a can of new fuel this year, it would start and run while I had the choke on, but when I tried to take the choke off, it would simply die. I have it in a barrel with new gas. More than that, there is too much choke and the engine will die. As soon as I give it revs the choke automatically disengages & the engine stops straight away. There are many different types of carbs, but they all operate the same. 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. Machine is about 10 to 12 years old. The job of the carb is to accurately meter extremely tiny quantities of fuel and mix it with the air entering the engine so that the engine runs properly. runs great on idle. I have a 16hp Sears riding mower. once but that doesnt mean I didnt miss something. But then if you put full choke on again it would idle fine (fast idle on full choke). even with the choke on it sounds like it is running rough. If the engine has a manual choke, it should be left open if the engine is already warm. Checked the fuel filter and fuel line. The choke reduces the amount of air that goes into the carburator. ENGINE ONLY RUNS ON CHOKE have 5hp b&s put new carb on it only runs with the choke no throttle action carb is a wilk i believe no adjust just i think air screw is. ? I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. CHOKE position when starting a cold engine. Solved: Craftsman leaf blower only runs at full throttle and half choke Discussion in ' Do It Yourself (Not Computer-Related) ' started by lexmarks567 , Aug 12, 2006. Find the answer to this and other Small Engine questions on JustAnswer. 8hp tecumseh snowblower engine that wont stay running?? carb problems? More questions. One cause could be an air leak on the carb, head gasket, crankshaft seal. 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. Replace the air cleaner assembly and start the engine for final carburetor adjustments. The main types are the bowl and diaphragm. One additional note, IF i keep the engine turning about 4K RPM, it will run. My Tiller is only running with the choke on. JD Gator only runs with choke John Deere Gator John Deere Gator I just picked up a used 4x2 from a friend and it only runs with choke 1/2 way (it will run without but once you give gas it d. 05 250 only runs with choke fully engaged I use the choke, and it will run. Some engines utilize a manual fuel primer bulb to enrich the ratio of fuel in the fuel air mixture for initial engine starting. and Make and Size I hate to safe thats it. It also lacks power and after running for a while will stall. I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. It has always need a little choke to run smoothly after it warms up. Carburetor problems produce different symptoms. Set the pull-off so the choke is a little tighter. The Tecumseh engine on your snowblower may need to run on "Full" choke temporarily under certain conditions, but if you have to leave it in full choke to operate the machine sustainably, something is not right. Engine Will Only Run On Choke, Wont Tick Over Off Choke - posted in Problems, Questions and Technical: Hi, My problem is with my mini mayfair 1987 998cc, it seems to be fine on the choke runnin at 2000 rpm but wont tick over off choke?. APA style Recommendations pertaining to the use of out of prison only to find jobs. In an event of a return, coupon savings may be deducted from your refund. Other searches I've seen on the net say it's probably a clog in the carb, which I've since cleaned. im having a bit of trouble with my engine on my most recent build. If any kind of load is applied it will stall and then i noticed it will only run with thte choke blade almost closed. You can try turning the air screws to one turn out and then adjust the slide height with the idle screws, but if you can't get it to idle, check for plugged air or fuel lines to the pilot jet or plugged pilot jets. Bike only runs on full choke!! I crashed my bike last year, but there didn't seem to be any massive damage. has been cleaned. The job of the carb is to accurately meter extremely tiny quantities of fuel and mix it with the air entering the engine so that the engine runs properly. 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. There are many different types of carbs, but they all operate the same. My mechanic says the carb needs a rebuild but says he does not have time for it. It had been put up for a while ( a few months), it wouldn't start when i went to get it out. I let it run for 10 min with the choke 1/2 on. My last mower was a Sears Craftsman with a Honda motor. The choke reduces the amount of air that goes into the carburator. In an event of a return, coupon savings may be deducted from your refund. (Depending on how your engine is timed, 3/4 down might be better. So i have this old LT-12 Snapper Riding Mower. I checked that the fuel pump is pumping gas to the carbs and checked the plugs. 8hp tecumseh snowblower engine that wont stay running?? carb problems? More questions. New Models Professional Landscape Solutions Black Mountain, NC (828) 357-8222. I'm sure this is a pretty basic problem to figure out, but it's got me lost. Outdoor Gasoline and Electric Powered Equipment and Small Engines - runs only on choke - My pressure washer has a Briggs engine Model Number 150212, Type 0122 E9, Code 070612 with a float bowl carb. Test Procedure. If I move it off of full choke it shuts down. I have a Honda GCV160 engine on my mower, which all of a sudden stopped running unless the choke is on. at full throtlle i need full choke to run. Clogged low speed and idle circuit. Any help will be appreciated. Now to answer the question, I'll bet if you go get a $4 carburetor diaphragm gasket, the engine will run just fine. JD Gator only runs with choke John Deere Gator John Deere Gator I just picked up a used 4x2 from a friend and it only runs with choke 1/2 way (it will run without but once you give gas it d. Honda’s Auto Choke System is available for use on GCV160 and GCV190 engines in fixed-throttle lawnmower applications. On a really hot day, the choke will not close up much at all with the engine off, as the engine is already somewhat warm (per the ambient temperature). If it is not taken care of when it is only sticking slightly, the dirt can build up until the choke is stuck solid. Engine is slow to start then only runs with the choke full on and runs ok at about 1500 rpm and below. Now it will only run with the choke half closed. It sounds like it may be running lean; not enough fuel is getting to the engine to run properly with full air flow through the carburetor. 1pcs 3314N2HH - ebm papst - ebm-papst DC Fans 92x32mm, 24VDC 63CFMBal,Briggs & Stratton 128802 128805 Autochoke Carburetor 790845 799871 FREE Shipping,Yongnuo YN-300 II hot shoe Led Video Light For Canon Nikon Camera Camcorder 6947110918143. After the fix and before the ending, Taryl goes over how the auto-choke system works on a Briggs & Stratton engine as well as the carburetor. Re: Outboard motor needs choke all the time :-( The carb has to mix the right amount of petrol with the right amount of air in order to work efficiently. The choke is literally an extra air hole opening up. Why would it only run on Choke, even after it warmed up I tried to push in the choke and it would stumble and die, unless I pulled the choke back out. Ford Lgt 12hp Kohler Won't Run Unless Choke Is Pulled Outhelp - posted in Ford, Jacobsen, Moline, Oliver, Town & Country, White: Hello - I need help on how to keep my tractor running. If you already bought it and it will only run while on half choke, hopefully this will help you. I was also curious about this. What do you think. Evidently starving for fuel. As in, at an idle? Or does it seem to run fine a little above an idle? Just not when you really crack open the throttle. The choke is not a strangler type but a fuel enrichment device so if the engine will only run with the choke on then air/fuel mixture is too weak for some reason or there are other issues with the engine that make the running unhappy and the application of the choke compensates for this. Just try pushing the choke back in a little bit at a time as you cover the first mile or two. I would still start with the float. Move the choke lever/rod to the OFF position as soon as the engine fully warms up and runs smoo thly without use of the choke, or for restarting a warm engine. Any help much appreciated. The engine starts easily whether cold or hot and is ready to use immediately. Ive got almost the same issue with my 13hp honda on my pressure washer. This obviously caused a large air leak, and the symptoms you described. Pressure cleaner was running fine today for 90 minutes. Re: Outboard motor needs choke all the time :-( The carb has to mix the right amount of petrol with the right amount of air in order to work efficiently. I have taken the muffler off & it was well choked up with coke but after cleaning it's still doing it. If the engine does not run correctly, let engine warm up for about 5 minutes. ? My tecumseh engine only runs on full choke what should i do to get. Pablo was right. even with the choke on it sounds like it is running rough. Weedeater only runs with full choke [ 2 Answers ] I recently pulled my weedeater out of the shed after a long winter. I got the engine to work fine, but it only runs with the choke on, once the choke is off the engine dies. Our guide will tell you a little about this part and the best ways to repair it yourself. Re: Briggs engine runs only on choke I agree that the carb is messed up. It turned out that the carb was loose, allowing air to leak in and dilute the vapors, hence only running with a closed choke. Sure sounds like a vacum leak. Finally trashed it and bought a Troy-built trimmer with Ryobi motor. Adjusted it a bit, but still not go. If I have the choke out about half way the car will jump back and forth between 1000 and 1500. It had been put up for a while ( a few months), it wouldn't start when i went to get it out. RC Giant Scale Cars - Hpi Baja 5B only runs with choke on???? - Hey there Ive got a HPI Baja 5b and it’ll start with choke on but if I begin to remove. It does not appear to be the choke, the engine has not had time to completely warm up when it dies and the choke is still fully closed. This should be sufficient enough for the engine to run properly. When I start the engine cold, choke is fully open and gradually steps down on the choke cam as designed. engine only runs with excessive choke Troubleshooting. The choke makes up for the lean condition, and, wha la, the engine runs. With one click it is a bit smoother, and with two clicks it runs the smoothest. It does not appear to be the choke, the engine has not had time to completely warm up when it dies and the choke is still fully closed. it will rev up to about 1000RPM and die, sometimes it'll chug a bit at 200-300RPM. As soon as you try to move it to the wide open postition, no matter the engine speed, it will spit and pop and backfire and stall. Got any ideas?. i tried to restart it and get it running but it wouldnt. If the engine starts, but fails to run, repeat this procedure. After the fix and before the ending, Taryl goes over how the auto-choke system works on a Briggs & Stratton engine as well as the carburetor. Save more money that you can shake a stick at today. Because your gasoline is old and some of its valuable volatile ingredients of evaporated out, or the gasoline has a lot of water in it, or the spark plug gap is. Blower: Only Runs With The Choke On. Notice: If the engine runs a long time (5 minutes or more) without pressing down the accelerator pedal. I have a 1992 kawasaki 220a bayou. The main difference (from a basic. Drop float bowl, with the use of a very, very small drill bit, clean out the pick up metering jet. when i switch the ignition off after the car has been runnin it keeps runnin on, sometimes it can go on for at least 5-6 seconds or 1-2 seconds. Still hard time to get started. Once the engine runs, wait until it cuts out or for about ten seconds, whichever comes first. we played with the air mix screw not much of a change, we changed the fuel filter. I purchased a new predator 212212 for my sons go kart build and can't get it to run without the choke on slightly. Air is sucked through this tube by the carburetor into the choke coil housing, heating it up and opening the choke. Try using an unlighted propane torch, and pass it over the carb then open the choke, if the propane keeps the engine running that will confirm the need to plug holes down stream of the carb. I let it run for 10 min with the choke 1/2 on. I am trying to fire up my 58' 235 and am having issues. When I move the choke to "Auto" the engine picks up rpm for somewhere between 2-3 seconds and dies. the choke should only be closed (blocking off air to the carb) during starting otherwise it should be open. With a manual choke you have to mimic the action of the thermostatic choke control as the engine warms. With a 2cyl briggs engine. I've had the carb off and cleaned it (though, oddly, I couldn't remove the main jet which is held up in place by a plug in the top of the float chamber. I would disassemble and clean the carburetor and/or check for other sources of fuel restriction. When the problem orginaly happened I could not kick start it at all only bump start with the choke on. I usually just turn the carb upside down and make the float level or parallel with the gasket ring on the carb housing. Honda’s Auto Choke System is available for use on GCV160 and GCV190 engines in fixed-throttle lawnmower applications. If I open the choke it will shut down immediately. I bought a new carburetor for it and in reinstalling I'm not sure where to connect the governor link and spring. So if it will only run choked, even when warmed up, it sounds like too much air is getting into the engine. If I turn the choke to full open/run position it will die instantly. tried another carb & still the same. I can only get it to run with the choke fully closed. Only runs on choke March 26th, 2016, 08:33 PM. This afternoon I went to mow the lawn. On that in the last several years I've had to replace said. ENGINE ONLY RUNS ON CHOKE have 5hp b&s put new carb on it only runs with the choke no throttle action carb is a wilk i believe no adjust just i think air screw is. Bike only runs on full choke!! I crashed my bike last year, but there didn't seem to be any massive damage. Check out our 2100 carburetor kits. If that does not solve the problem then the carburetor needs to be dissembled and cleaned. There are several versions of this engine with different starting and stopping procedures, but there a few things that remain the same across the model range: The fuel valve must be opened before starting the engine and closed after stopping the engine. replace bowl turn on fuel and start up. Evidently starving for fuel. I am thinking this is a process of elimanation to rule out the tank, gas and fuel pump. The engine is started from cold, and the spring loaded idle screw is adjusted until the engine is running at 1800 rpms maximum. Weedeater only runs with full choke [ 2 Answers ] I recently pulled my weedeater out of the shed after a long winter. I have a Ford 9N tractor that I'm trying to get running for my brother. I have a Honda GCV160 engine on my mower, which all of a sudden stopped running unless the choke is on. Once you let your foot off the gas, the engine returns to normal idle and idles fine because only the slow jet is used at idle and the throttle plates are essentially closed. runs rough have to choke most of the time July 8, 2012, 10:40 PM I have a club car AG946 gas DS bought it a few weeks ago was full of bad gas changed out gas and new fuel filter i only put one filter back on which is the one before the pump. I don't have any air leaks and I have good spark and spark plugs. (Depending on how your engine is timed, 3/4 down might be better. The motor has to be full choked and once started has to be full choked and high idle. if i hold the choke plate closed, the car runs, and will idle as high as 1800RPM, and allow me t. Shutting the Engine Down 1. Mind you with the choke on it runs pretty well. Its a blower/vac combo. Factory tubes for the most part are fine, you just to pattern your gun with some different shells and find what works best for you and than stay with that shell. Test Procedure. Lawnmower Repair and Service Maintenance Tips 41,928 views. So basically it WILL NOT run without full choke, and even with full choke on I still can't ride the thing because as soon as you give it throttle with full choke on it will stall, I guess it gets flooded with gas. replace bowl turn on fuel and start up. There are several versions of this engine with different starting and stopping procedures, but there a few things that remain the same across the model range: The fuel valve must be opened before starting the engine and closed after stopping the engine. Clogged low speed and idle circuit. Sanded the pin that was in it for awhile, put it back in runs much better now only 1/4 choke. Honda Black Max 2600 PSI Pressure Washer. I think the backfiring problem is a timing problem. ran it out of gas before storage. What causes an engine to only run when the choke is on is not enough fuel getting to the engine. 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. I am trying to fire up my 58' 235 and am having issues. What do you think. Still would not continue to run without choke. If it runs with choke open , that is not the issue. If the choke is left on it does run on fast switch. It means that the engine is running too lean - not getting enough fuel and thus needs to reduce the air to run. Starts first time, runs perfectly appart from even after a long running time, if I start to move the choke from full on to anywhere toward the off the engine cuts out. ran it out of gas before storage. It is located between Accelerator pump lever and choke. but still fully choked. My 214 currently only runs with the choke pulled out. ? Okay, so I purchased a Ryan aerator with a 3. I noticed on your model that the engine has a fuel pump and the fuel tank is in the rear of the tractor. To test for an air leak or bad gasket allowing air which is would cause a lean mixture which would be compensated for by the choke, you would spray carb cleaner on all of the likely air leak joints while the engine is running and listen for the engine to sputter or rev whien you find the leak. I also can't figure tihs out. Still hard time to get started. Even once very warm, turning the choke off or giving it any throttle kills it. Allow the engine to come to low idle. A typical starting procedure for an engine with a choke might be: Close the choke (usually on carburetor). When I move the choke to "Off" the engine seems to maintain rpm (maybe a slight increase but not like when I move it to "Auto") and dies within 2-3 seconds. 2 stroke engine will only run on choke. Finally the engine will start and run, But it only runs with the choke almost closed (about 1/4 open) and the foot pedal at 1 to 2 inches depressed. I have had the jet clog twice and I have a filter in the line. If you leave the ignition switched on the choke should heat up and open. When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. New Set of 3 Yamaha PWC OEM Motor mounts 68A-44517-00-9M,Polaris Choke Cable 1998 SLTX 7080755,WSM Complete Top-End Kit 72. 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. Any help much appreciated. I have a 2015 yz250f that has about 30 hours on it. Can take the unit for warranty service but there is a 3 week backlog. where does the extra fuel come from when you choke em', the main yet to see a ezgo or club car that don't show improved starting from a larger main jet. Since you just got the engine done I would double check the carburetor. Outdoor Gasoline and Electric Powered Equipment and Small Engines - runs only on choke - My pressure washer has a Briggs engine Model Number 150212, Type 0122 E9, Code 070612 with a float bowl carb. It can just about run with the Eco-Throttle switch on and the choke off providing there's no load being pulled. BUT right now it is running like CRAP. It's a common thing for dirty/gummed up carburetors to only allow an engine to run with the choke on, but my engine runs fine when the choke is off and dies out if I turn the choke on. If I turn the choke to full open/run position it will die instantly. I would say If it runs on the choke then its not a tappet issue. Although it may have something to do with your E3 Car Spark Plug , it is more likely the result of using E10 gasoline, especially if you live in a hot, humid area of the country. When choke is pushed in the engine shuts down. This should be sufficient enough for the engine to run properly. I've ran it for about 5 to 10 minutes in the full choke position but every. It sounds like a possible lean condition which is usually worse when the engine is cold,unless your running a choke and it runs good until the choke kicks off. Okay that's a regular two cycle engine. Yes, you need a choke tube in the end of your barrel, no you don't need a special choke tube. ) Allow Engine to Warm Up. the carb it self is what mixes the fuel and air the chokes only function is to reduce airflow to make the fuel/ air mixture more rich to aid in starting. This is a general guide which will list symptoms for 944 starting and running problems and common causes of those problems. Whassup? So, when the engine cools down, the carb is coming off for a rebuild, or at least a cleaning. at full throtlle i need full choke to run. The carbs have both been soaked and cleaned, new tank, pressure bulb, fuel filter and lines. Rinse it with carb cleaner, put back together, and it should be good to go. Engine will start but runs poorly or dies: ENGINE STARTS AND DIES, SURGES, OR WILL ONLY RUN ON CHOKE. After rebuilding the carb, I can get it to start and run fine but it will only run with the choke full open. So thats the issue. If you're new to Tech Support Guy, we highly recommend that you visit our Guide for New Members. cleaned the gas tank and the carb. If the engine does not run correctly, let engine warm up for about 5 minutes. Hi I have a small petrol engine comopressor powered by a Honda GX140 engine. The choke circuit is a separate feed than the other jets and that's why it is doing that. ok, i have an 87 DX here that i have to get running soon, very soon. (Depending on how your engine is timed, 3/4 down might be better. Hi All, I'm working on a Briggs vanguard 16 hp v twin engine. Honda Black Max 2600 PSI Pressure Washer. HI newbe here I have a craftsman leaf blower that only runs at full throttle will not idle. As soon as I open the choke, engine dies. Your pilot circuit is obviously not doing its job. Because your gasoline is old and some of its valuable volatile ingredients of evaporated out, or the gasoline has a lot of water in it, or the spark plug gap is. Mower info: Craftsman 917 255736 Engine info: craftsman B&S model: 252707, type: 0621-03, code: 36040111. I'm going to find a carb rebuild kit for it and change out the fuel lines. Re: Outboard motor needs choke all the time :-( The carb has to mix the right amount of petrol with the right amount of air in order to work efficiently. So up until today the engine/carb has been running normally: Put choke on to start, start engine, move choke to off or open position. Allow the engine to come to low idle. In most cases a tractor only running with the choke pulled out indicates trash and/or contamination being present in the carburetor. The specs online say it's engine is a Honda OHV/OHC Premium Residential engine. Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. Once it's running, it only runs for 10 secs, or so,before it dies. This is not a good thing. 1) Set choke a little tighter and retry. For that engine, I remember that I didn't have my float adjusted right for a long time, and I remember having a problem with sticking valves, but I can't remember at what point I had to run with the choke on. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. The needle should be clearly visible. It will now only run in the mid-level choke position and runs at about 3/4 of normal high rpm. i had my bike out the other day and it ran like normal. This video demonstrates how to clean a carburetor for a small engine that will only run on choke. There may be bad fuel in the gas tank, a loss of air flow to the engine caused by overgrown grass or a dirty air filter, or your carburetor needs to be adjusted or cleaned. tried another carb & still the same. When I hold my hand over the intake to make it run, it usually runs gas out into the filter housing box, with the choke on. Re: Onan generator only runs on choke If you still have the OEM Facet fuel pump, we found that if it has not run is a while and with its age, the rubber in the diaphrams, there are two small ones in this pump, come apart and get into the carburator. Bike will not idle and has to be kept at higher idle in order to run. I have an 026 that only runs with the choke engaged. It has a Tillotson HL283 carb. Cobalt Zero turn mower. 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. If the fuel pump is failing it might would still run but only with the choke out. 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. 2) Choke pull-off opening too much. If your blower only runs with the choke on, you probably have an issue with your carburetor. If I open the choke it will shut down immediately. The engine should start with a carb setting of 1. Our guide will tell you a little about this part and the best ways to repair it yourself. Runs perfect. 10 HP Briggs and Stratton, only runs on CHOKE. This adjustment if for all Briggs float style carburetors and all Tecumseh float style carburetors. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. This should be sufficient enough for the engine to run properly. Small engine help - Echo backpack blower won't start, but runs on starting fluid I picked up a dead Echo PB-413H backpack blower last week. The next day, with a dead cold engine, you have to use starting fluid again. the cars starts fine, but when the choke is pushed all the way it stalls and dies. If I open the choke it will shut down immediately. A micro passage could be plugged and the solvent won't get to it or remove it. ? I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. A richer mixture is also easier to ignite. 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. Other things to check are, is the fuel boiling in the carb or is the gas line near hot exhaust etc?Or to look at it as a possible rich condition,is the choke. Ive got almost the same issue with my 13hp honda on my pressure washer. Choke closed closes of the air supply and puts more gas into the engine. I have a Kohler k321 which only runs on full choke. Why does my cub mower only run if choke pulled fully out? Why is the engine only firing on one side Read More. I have taken the muffler off & it was well choked up with coke but after cleaning it's still doing it. If the engine does not run correctly, let engine warm up for about 5 minutes. Re: Outboard motor needs choke all the time :-( The carb has to mix the right amount of petrol with the right amount of air in order to work efficiently. ) Turn Choke. describing the engine running for a moment and then. When and if you clean out carb, make sure you not only clean out the jet but the nozzle that sits on top of it. Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. Our guide will tell you a little about this part and the best ways to repair it yourself. Two possibilities, 1 Air leak-carb, head gasket, crankshaft seal. An engine that requires the choking ( partial or full ) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. Bolens BL110 only runs on half choke. I have changed every fluid in the bike ie. Honda power washer only runs in choke will not run with choke off It is starving for fuel. Tried to run it this year and basically it will only run with the choke on, even when its warmed up. tried another carb & still the same. Try using an unlighted propane torch, and pass it over the carb then open the choke, if the propane keeps the engine running that will confirm the need to plug holes down stream of the carb.