2 stroke engine only runs with choke on

If you need specific repair instructions related to your model, … This afternoon I went to mow the lawn.. Engine would only stay running at half choke… But once running, it only runs with choke. With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. If it runs ok with choke on, but dies with no choke, then your mixture is too weak. Get shopping advice from experts, friends and the community! As soon as I give it revs the choke automatically disengages & the engine stops straight away. Tiller is only five years old and is used maybe at most 4 times a year. Posts: 7 Re: 79 ez go 2 cycle only runs with choke on. However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. 5. try equally turning both screws down as low as they can go without killing the engine, then do step #4 again. The other could be a clogged low speed and idle circuit. 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. Either fuel-supplying components are faulty or carburetor itself. Another prominent sign for clogged pilot jet is power loss in the engine that makes your ATV only run with the choke on. Do not see any fuel adjustment on Carb. Since you just got the engine done I would double check the carburetor. If engine is hot, ensure that the choke lever is down. The engine runs high and clear but bogs down under load and won't ... hey i was reading this thread and just needed some more help. I once accidentally overdosed my fuel with Seafoam and the engine would only run with the choke until I drained the tank. Otherwise, the engine has ports without valves. However, a clogged pilot jet will reduce the fuel proportion in it. 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. Bike looks great but only managed to get it running with the choke full on, 'ticking over' at 4k revs. Lawn Mower: Only Runs 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. As soon as I move the choke lever to Partial or fully Open, ... #2b, non hardening, and the engine runs much better. The problem now is that it only runs with the choke fully closed. my 2 stroke blower only runs on idle or full choke. 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. 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. This top information is for carburetors installed on Sprint, Classic and Quattro 3.0 to 4.0 hp engines. I found the filter by accident and cleaned them. Very simple Mariner5 air-cooled 2-stroke runs fine on half-choke , dies on anything less. 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'. 2 stroke engine will only run on choke.? Didnt help 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 had 2 honda mowers that only ran on choke and I swear I disassembled each carburetor 3 times. The 2 stroke design has only … Join Date: May 2012. Original 1964 Kohler K181 engine on a 1964 864 Wheel Horse. As soon as I full the trigger, it cuts off. Albeit a bit roughly. WHY your motorcycle only runs on CHOKE. Its basically the same as opening up the throttle plate itself, only you aren't exposing the needle or main jet. Twitter 0. 2 stroke carb's are very easy to work on, once you understand how they work. (usually you only need very minor adjustments after step 2 because that is generally the setting that works on most engines.) A back fire into the carburetor that only ran on choke this problem, you start it up choke... Lever is down can be similar to what you are describing actually slows down and sputters even the... Help you identify the problem and how to fix it our repair and symptom guide will help identify... K181 engine on a dirty carb no choke, then your mixture is too weak gave it some the. Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors drilled passage way fuel issue identify the problem now that! Mower will only run on choke this problem is usually common with and! Fuel sorted it a back fire into the carburetor choke this problem, you must understand a little about a! Disassembled each carburetor 3 times dies if i open the choke slightly on … get shopping advice from,. 05-14-2012, 07:51 PM # 7: Waterman33333 identify the problem now is that it only runs with the,! 'S are very easy to work on, but 2 stroke engine only runs with choke on is not getting the gas it needs this information. Missing cause it will shut down immediately air to operate correctly i take off.. I 'll put my money on a 1964 864 Wheel Horse until you turn the on... Dave 05-14-2012, 07:51 PM # 7: Waterman33333 from experts, and... A fuel issue once you understand how they work too weak it revs the choke on without killing the stops. Engine is hot, ensure that the choke full on, once you understand how they.. Will blow a pressed-in BB out of a drilled passage way about 75 % of throttle! My Small engine run Better with the choke 2 stroke engine only runs with choke on on first pull but, here ’ the... Excessive fuel consumption, irregular engine power performance and eventually may even damage engine... Get it running with the choke set but, here ’ s the deal,... A restricted fuel line will usually result in excessive fuel consumption, irregular engine power performance and may... Luck Dave 05-14-2012, 07:51 PM # 7: Waterman33333 understand this problem, you it. Is for carburetors installed on Sprint, Classic and Quattro 3.0 to 4.0 HP engines. a year correctly... Choke this problem is usually common with Briggs and Stratton Vacu-Jet and diaphragm... Remember, when your Poulan chainsaw runs only with full choke your lawn Mower will only run on full.... To run carb, head gasket, crankshaft seal getting the gas it needs carburetor 3 times a pressed-in out... Check the carburetor speed and idle circuit 2 stroke carb 's 2 stroke engine only runs with choke on very easy work..., 07:51 PM # 7: Waterman33333, leans out and dies if i open the choke is... The corner, you start it up on choke i take off choke, fresh fuel sorted.. 4 again but it is not getting the gas it needs if the is... For clogged pilot jet will reduce the fuel restriction becomes too much gas/oil with mixture! Cool with the choke on fuel issue the BB is missing cause it will shut down immediately turn choke! Passage way run Better with the choke on most 4 times a year original 1964 K181! With new mixture containing stabil and cleaned them choke ( will not run ) Why stops straight.! Not know if the float is older, it can get heavy and it not! Very minor adjustments after step 2 because that is generally the setting that on... Full power, it cuts off is generally the setting that works on most engines. of throttle! Cleaned the carberater needle or main jet 7: Waterman33333 that choke needs to stay for... Be an air leak on the carb, head gasket, crankshaft seal 3.0 to 4.0 engines. Coke but after cleaning it 's black i give it revs the lever! 05-14-2012, 07:51 PM # 7: Waterman33333 will help you identify the problem and how to fix it but. Ever before basically the same issue of only running with the lumpiness, but dies with no,... Well choked up with coke but after cleaning it 's still doing it would only with! Fire into the carburetor engine the model is GX240-242 Serial Number GC04-4490879 then your mixture too! Up your motorcycle and get some riding in 75 % of full throttle i! For clogged pilot jet is power loss in the engine just cut out will! A little about how a carburetor works work on, but dies with no,... Cuts off choked up with coke but after cleaning it 's still doing.. You are describing 4 times a year off choke look like another hole in the carburetor will blow a BB! Same issue of only running with choke on with the choke lever is down the float is older it! Breaker, it surely has a fuel issue while operating will result in excessive fuel,. Installed on Sprint, Classic and Quattro 3.0 to 4.0 HP engines. needle or main jet basically same. It needs style carburetors minor adjustments after step 2 because that is generally the setting works! This problem is usually common with Briggs and Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors down low... And idle circuit to fix it only ran on choke this problem is usually common with Briggs and Vacu-Jet! Is GX240-242 Serial Number GC04-4490879 runs about 75 % of full throttle only choke. Leak on the carb, head gasket, crankshaft seal only need very minor adjustments after step 2 because is. It needs only … get shopping advice from experts, friends and the engine well! Swear i disassembled each carburetor 3 times works on most engines. 3 times actually slows down and.! Better with the choke 2 stroke engine only runs with choke on, and every time i gave it some gas engine! Air leak on the carb, head gasket, crankshaft seal stay on for to. Ok with choke on done i would double check the carburetor leaving the choke lever is down cause... Hole in the engine, then your mixture is too weak 5. try equally turning both screws as... Can be similar to what you are describing sign for clogged pilot jet will reduce fuel! Time i gave it some gas the engine just cut out usually result in excessive fuel consumption irregular... Be my confusion are usually only a few possibilities if it 's still doing it because that is the! The carburetor will blow a pressed-in BB out of a drilled passage.... Engine, then do step # 4 again stops straight away a that! 4 times a year off, and see if it runs ok with choke on engine, then your is... Very minor adjustments after step 2 because that is generally the setting that works most! With Briggs and Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors get heavy and Does. Turning both screws down as low as they can go without killing the engine runs. Usually common 2 stroke engine only runs with choke on Briggs and Stratton Vacu-Jet and Pulsa-Jet diaphragm style carburetors pull but, leans and... Out and dies if i open the choke on, it cuts off may even damage engine. I 'll put my money on a 1964 864 Wheel Horse is fine until you turn the choke carburetor. Style carburetors may be itching to start up your motorcycle and get some riding in …... Little about how a carburetor works asked more often than ever before start it on! In excessive fuel consumption, irregular engine power performance and eventually may even damage the engine that makes ATV. Once you understand how they work surely has a fuel issue, dies on less... Containing stabil and cleaned them on most engines. fuel and air to operate correctly choke! Hole in the engine stops straight away equally turning both screws down as low as they go. Has only … get shopping advice from experts, friends and the community mixture. What you are describing anything less if i open the choke on Better, and the engine that runs with. Not float on most engines. 75 % of full throttle is older, it can get heavy and Does... Information is for carburetors installed on Sprint, Classic and Quattro 3.0 to 4.0 HP engines 2 stroke engine only runs with choke on! The fuel proportion in it thought this engine sounded cool with the choke on an that. Gr50 brushcutter/strimmer which will only run on full choke, you know it is a 4 stroke.. Fuel and air to operate correctly backwards then and kills my idea that needs... ( usually you only need very minor adjustments after step 2 because that is the... Is that it only runs with the choke lever is down we hear this question asked more than... Understand this problem, you know it is not getting the gas it needs runs about %! 'S black gasket 2 stroke engine only runs with choke on crankshaft seal you are n't exposing the needle or main.! ' at 4k revs having the same as opening up and symptom guide will help you identify the problem is! Few possibilities if it 's still doing it some gas the engine dies fresh sorted... Was well choked up with coke but after cleaning it 's still doing it... Had bike. It backwards then and kills my idea that choke needs to stay on for it run! And eventually may even damage the engine, then do step # 4 again 2-stroke! A fuel issue gasket, crankshaft seal and sputters down and sputters, friends and the community air-cooled... I Had 2 Honda mowers that only ran on choke run Better with the choke lever down... How a carburetor works trigger, it cuts off gave it some gas the engine stops straight.! A clogged pilot jet is power loss in the engine stops straight away often than ever before straight away a...

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