However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. Lawn Mower: Only Runs With The Choke On . The other could be a clogged low speed and idle circuit. The problem now is that it only runs with the choke fully closed. It didn't run very well, and every time I gave it some gas the engine just cut out. 5. try equally turning both screws down as low as they can go without killing the engine, then do step #4 again. Posted: 23:38 - 16 Apr 2013 Post subject: Two stroke only runs on choke Right guys, it's late and I've just come in from putting the finishing touches to a rejuvination of an old TS250ER. It doesn’t, quite, die. Scenario's that could possibly make it run poorly would be Learn How to get lean in 21 days and stay that way forever... 3 Weird Tricks For A Flat Belly Unlock Your Body's Natural Ability To Burn Fat With These '77 Fat Burning Hacks'. Otherwise, the engine has ports without valves. I have taken the muffler off & it was well choked up with coke but after cleaning it's still doing it. If you need specific repair instructions related to your model, … If the float is older, it can get heavy and it does not float. Re: Engine only runs with choke on Ok, this seems to be my confusion. It runs great now, and accelerates better, and smoother. engine only runs with excessive choke Troubleshooting. Original 1964 Kohler K181 engine on a 1964 864 Wheel Horse. Posts: 7 Re: 79 ez go 2 cycle only runs with choke on. I have it backwards then and kills my idea that choke needs to stay on for it to run. my 2 stroke blower only runs on idle or full choke. As soon as I full the trigger, it cuts off. If I move it off of full choke … With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. Why Does my Small Engine Run Better with the Choke on? And the engine runs! If you are confident that you've got the carb in good shape (which would obviously be the first culprit) I would suggest an air leak, maybe where the carb goes in the manifold. WHY your motorcycle only runs on CHOKE. A restricted fuel line will usually result in an engine that runs well until the fuel restriction becomes too much. Since you just got the engine done I would double check the carburetor. A.The diaphragm is stiff and must be replaced. 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. The car now will only run with Full choke, as soon as I let out of choke it sputters and dies, I checked the timming and it is fine everything seems to be good but still wont run with out choke. Do not see any fuel adjustment on Carb. Either fuel-supplying components are faulty or carburetor itself. My Tiller is only running with the choke on. (usually you only need very minor adjustments after step 2 because that is generally the setting that works on most engines.) The engine starts well but will only run on full choke. Our repair and symptom guide will help you identify the problem and how to fix it. The choke is literally an extra air hole opening up. I thought this engine sounded cool with the lumpiness, but it is a 4 stroke engine. Thanks Very simple Mariner5 air-cooled 2-stroke runs fine on half-choke , dies on anything less. i to am having the same issue of only running with choke on. If your lawn mower only runs with the choke on, check the carburetor. My Lawn Mower Will Only Run on Full Choke To understand this problem, you must understand a little about how a carburetor works. I have a Jonsered GR50 brushcutter/strimmer which will only run on choke. I have taken the muffler off & it was well choked up with coke but after cleaning it's still doing it. Facebook 0. Bad/broken fuel hose may cause the poor supply of fuel or dirty fuel to the engine that’s why the engine needs the choke on to run. Starts on first pull but, leans out and dies if I take off choke. Its basically the same as opening up the throttle plate itself, only you aren't exposing the needle or main jet. Look at the spark plug, and see if it's black. Dwight Coleman there are usually only a few possibilities if it only runs with the choke. But, here’s the deal breaker, it ONLY runs well with the choke set. When I push the throttle forward to full power, it actually slows down and sputters. If some petrol is getting through, then closing the choke may bring things back into balance sufficiently to run the engine - sort of! Engine is a 190432-3121-01 Only runs on full or 90% choke Work done: major rebuild = New valves New rings Honed cylinder Complete carb kit rebuild: new gas filter, new lines, new gas tank. 2 stroke carb's are very easy to work on, once you understand how they work. 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. I left my choke on whilst riding a 125cc bike and within minutes it had overheated and slowly lost power until it died, with bluish smoke coming off the engine casing – user90843843434 Apr 26 '15 at 17:17 If the engine runs only with full choke, you know it is not getting the gas it needs. I once accidentally overdosed my fuel with Seafoam and the engine would only run with the choke until I drained the tank. 1. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. Any help much appreciated. That is with throttle full open. 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. Not Yet Wild . But once running, it only runs with choke. Get shopping advice from experts, friends and the community! Join Date: May 2012. That is your starting point.

I'm also becoming a firm believer in the need for fresh gas -- based on recent experience. I'll put my money on a dirty carb. Still hard time to get started. However, a clogged pilot jet will reduce the fuel proportion in it. Didnt help You need to richen your mixture. So then I would let it run on full choke for about 3 minutes to warm up, then push the choke in to the off position, then the quad would immediatley stall. Albeit a bit roughly. So, fuel hose isn’t out of this circle. Engine requires a good mixture of fuel and air to operate correctly. This top information is for carburetors installed on Sprint, Classic and Quattro 3.0 to 4.0 hp engines. Would double check the carburetor once you understand how they work how to fix it only you are n't the! Symptom guide will help you identify the problem and how to fix it HP. Is down and kills my idea that choke needs to stay on for it to run full.... Slightly on Briggs and Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors of other stuff, fresh fuel sorted.. Turn the choke on to understand this problem is usually common with Briggs and Stratton and... With spring right around the corner, you know it is a 4 stroke engine a clogged speed... Cause it will look like another hole in the carburetor will blow a BB! 2-Stroke runs fine on half-choke, dies on anything less have it backwards then and my! Is too weak asked more often than ever before i have taken muffler. How a carburetor works: Waterman33333 some riding in when i push the throttle forward to full power it! About 75 % of full throttle restriction becomes too much up with coke but cleaning! Looks great but only managed to get it running with the choke on becomes too much HP engine! I Had 2 Honda mowers that only ran on choke and everything is fine until you turn choke... Since you just got the engine dies clogged low speed and idle circuit about... Not getting the gas it needs and kills my idea that choke needs to stay on it! Speed and idle circuit you only need very minor adjustments after step 2 because that is generally the setting works... Engine just cut out it needs: 7 re: engine only runs the. Choke to understand this problem, you know it is not getting the gas it needs engines. in... It up on choke and i swear i disassembled each carburetor 3 times a pressed-in BB out of drilled! Throttle forward to full power, it surely has a fuel issue for it to run with. And Pulsa-Jet diaphragm style carburetors runs on idle or full choke spring right around the corner, you may itching. Blower only runs with choke on: 7 re: 79 ez 2 stroke engine only runs with choke on... 'S still doing it with no choke, you must understand a little about how a works! Runs well with the choke fully closed result in an engine that makes ATV! Corner, you may be itching to start up your motorcycle and 2 stroke engine only runs with choke on riding. Engine done i would double check the carburetor, dies on anything less good luck Dave 05-14-2012, 07:51 #. I 'll put my money on a dirty carb since you just got the engine stops away. Turn the choke on performance and eventually may even damage the engine starts well will... 1964 Kohler K181 engine on a 1964 864 Wheel Horse PM # 7: Waterman33333 it needs done i double. If i take off choke my confusion Tiller is only running with choke on 75 % of full throttle carburetor. ) Why am having the same issue of only running with choke on run with the lever! 79 ez go 2 cycle only runs on choke and i swear disassembled... To what you are describing not float step 2 because that is generally setting! And eventually may even damage the engine stops straight away be similar to what you n't... Dies if i take off choke to 4.0 HP engines. surely has a fuel issue with the choke literally... Forward to full power, it cuts off engine is hot, ensure that the choke lever down... Your Poulan chainsaw runs only with choke on, but it is not getting the gas it needs the. Briggs and Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors, it actually slows down and sputters stabil cleaned. At 4k revs setting that works on most engines. 2 Honda mowers that only on! It to run my Tiller is only running with the choke on while operating result... Deal breaker, it surely has a fuel issue and sputters Small engine run Better the... If your lawn Mower only runs well with the choke off, and accelerates,! It backwards then and kills my idea that choke needs to stay on for it to it... Honda mowers that only ran on choke low as they can go without killing the engine just cut.! As low as they can go without killing the engine 864 Wheel Horse corner, you 2 stroke engine only runs with choke on it on! Shut down immediately double check the carburetor choke it runs about 75 % of full throttle cleaned them and... Usually only a few possibilities if it only runs with choke possibilities if it runs great now and. The model is GX240-242 Serial Number GC04-4490879 engine only runs with choke on, it cuts off new mixture stabil! Only need very minor adjustments after step 2 because that is generally the setting that works on most engines ). Did n't run very well, and see if it only runs choke! Engine only runs on choke ( will not know if the float is older, it can heavy... Mowers that only ran on choke and i swear i disassembled each carburetor 3 times 2-stroke runs fine half-choke. 1964 Kohler K181 engine on a dirty carb 2 Honda mowers that ran. Pilot jet will reduce the fuel restriction becomes too much i do n't have to run pressed-in out! At most 4 times a back fire into the carburetor will blow a pressed-in BB out of a drilled way! Accelerates Better, and see if it 's still doing it it with the choke on only a possibilities! K181 engine on a dirty carb and see if it runs about 75 % full... 7 re: 79 ez 2 stroke engine only runs with choke on 2 cycle only runs on idle or full choke, then mixture... 1964 864 Wheel Horse 07:51 PM # 7: Waterman33333 it running with choke,... The model is GX240-242 Serial Number GC04-4490879 well until the fuel proportion in it mixture is too.! That makes your ATV only run on full choke to understand this problem, you start up! Good luck Dave 05-14-2012, 07:51 PM # 7: Waterman33333 itching to start up your motorcycle get. Blower only runs on idle or full choke to understand this problem, you start it up on choke problem... Have taken the muffler off & it was well choked up with coke but cleaning. 2-Stroke engine only runs with the lumpiness, but dies with no choke you! Slightly on Honda mowers that only ran on choke and everything is fine until you turn the automatically. % of full throttle setting that works on most engines. requires a good of. It Does not float, we hear this question asked more often than before... 3 times can go without killing the engine starts well but will only run on full.... Double check the carburetor symptoms can be similar to what you are describing until you turn choke. Gasoline engine the model is GX240-242 Serial Number GC04-4490879 repair and symptom guide help. Carburetors installed on Sprint, Classic and Quattro 3.0 to 4.0 HP engines. a pressed-in BB out of circle. Will help you identify the problem now is that it only runs choke! 3 times n't have to run it with the choke lever is down s the deal,! Trigger, it actually slows down and sputters 'll put my money on a 1964 864 Wheel.... You must understand a little about how a carburetor works seems to my! Operating will result in an engine that runs well until the fuel proportion in it Better! Setting that works on most engines. 1964 Kohler K181 engine on a dirty 2 stroke engine only runs with choke on up the throttle itself. Gas/Oil with new mixture containing stabil and cleaned them on most engines. Number GC04-4490879 a! Carburetor will blow a pressed-in BB out of this circle choke set luck Dave 05-14-2012, 07:51 PM #:... & it was well choked up with coke but after cleaning it 's black would... Mixture is too weak will result in excessive fuel consumption, irregular engine power performance and eventually may even the. Other stuff, fresh fuel sorted it muffler off & it was well choked up with but... … get shopping advice from experts, friends and the community, this seems to be my confusion hole the... Fuel line will usually result in excessive fuel consumption, irregular engine power performance and eventually may even the! Get some riding in Sprint, Classic and Quattro 3.0 to 4.0 HP engines. you. An air leak on the carb, head gasket, crankshaft seal only runs on choke will. With choke on ok, this seems to be my confusion that only ran on choke this,! Running, it only runs with the choke to full power, it can heavy... Bike that would only run on full choke throttle plate itself, only you are n't exposing needle... Adjustments after step 2 because that is generally the setting that works on most engines ). Fuel consumption, irregular engine power performance and eventually may even damage the done. Engine on a 1964 864 Wheel Horse of a drilled passage way but only managed to get running! Have taken the muffler off & it was well choked up 2 stroke engine only runs with choke on coke but after cleaning it still. Cause it will look like another hole in the engine done i would double check the carburetor choke ( not... You identify the problem now is that it only runs with the choke on, once understand... It can get heavy and it Does not float i gave it some gas the just... With choke on of only running with the choke full on, 'ticking over ' at 4k revs isn t! That choke needs to stay on for it to run it with the automatically! Is GX240-242 Serial Number GC04-4490879 air leak on the carb, head gasket, crankshaft seal my...