HOWEVER! When I take the choke completely off, it shuts down. Get your answers by asking now. Starts but stalls when choke is off or high idle My 2 stroke engine starts fine with choke and high idle but stall when you take either off Posted by Wayne Pittuck on Jul 07, 2019 The brass nut is actually the main jet. When the choke is "turned off", the choke baffle opens and reduces the amount of fuel passing through the carburetor. There should be a mixture screw on the carburetor. It was my dad's and he bought it new. When I turn it off, seems like it runs out of gas....turn it back on, it starts back up. Fuses or circuit breakers? goldenmember 1,000 Post Club! just a few suggestions. Thanks! check any fuel lines or bulb pump for cracks or tears that might be causing an air leak. blow out the plug and passageway reassemble and that should fix the unit not idling. Step 7: Run the engine until it warms up. Hi Brian. Turn on the ignition of your car. Link to post Share on other sites. For the air filter, you need to check if it’s clean or damaged. Is there something I should adjust? I liked that I could ask additional questions and get answered in a very short turn around. If the engine stalls under load, the mixture may be too lean. Shouldn't have to open it fully to start, especially on a Honda, Honda's are good cold starting bikes. pull that can off and then blow out the little screw that holds the can on. '89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit :icon_gd: If it's not the carb, then it's probably an intake air leak somewhere between the carb and the cylinder head. Within the first 20 or 30 seconds the choke should come off and the required fuel/air mixture is then supplied by the pilot circuit. slow jet/idle jet is clogged, prob in the passages ?. Join Yahoo Answers and get 100 points today. It's pretty clean as far as I can tell. I have provided you with an image showing the break down of the carburetor. So we turn off the engine and clear the smoke, and pull out the cable as best as we can. Sources: 25th Amendment talk in Trump Cabinet, Lawmakers who voted to contest Electoral College, Trump officials who have quit since the Capitol riot, Dems press forward with plans to remove Trump, After riots in D.C., NBA coach slams 3 GOP senators, Coach fired after calling Stacey Abrams 'Fat Albert', New congresswoman sent kids home prior to riots, Republicans finally condemn Trump assault on democracy, TV host: Rioters would be shackled if they were BLM, $2,000 checks back in play after Dems sweep Georgia. Move it back and forth making sure it moves freely. get a spray can of berrymans B12, a set of carb tools and have some fun, don't lose any parts. Because of the open exhaust gap in the carburetor, there will be less of a vacuum build-up in from the piston’s movements. Start the trimmer and gently unscrew the gas cap halfway off. Once you close the choke, reinstall the air filter and housing onto the carburetor. Please can someone help me locate either the website to order the 2 missing panels or the maker of my chandelier? A clogged main jet in the carburetor, a clogged pilot jet, stale fuel, or leaky gaskets around the carburetor are the most likely culprits. When I start my lawnmower with the automatic choke on, it will start but as soon as the choke turns off so does the engine. Well if its a push mower, you may need to take off the shroud cover and check the air fin for the governor. The choke increases the amount of fuel in the mixture, creating a richer mixture. When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. Go to top ; Share this post. Never ride with it half way open, you are flooding your engine and plugs, that's probably your problem. How do you think about the answers? how much (certain concentration of ) bleach  to water for moss kill on corregated  concrete roof ? If it’s dirty, you can follow the tip we gave above. We’re a forum community dedicated to Honda ATV owners & enthusiasts. The engine is not the same but it will give you an idea on how to do this. 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. Turn the choke off and assess. So, when your bike only runs on choke, it is because the “rich” mixture that is being burned is actually closer to the appropriate mixture. There should be a limit screw or something to prevent a full closure. I will give you the short answer, the carburetor needs to be cleaned. JavaScript is disabled. Remove the brass nut under the carburetor's bowel and blow the crud out of the holes. Jump to Latest Follow 1 - 5 of 5 Posts. Craftsman snowblower, when it does start and choke is turned off engine seems stalls immediately, needs to leave choke on in order for me to run it yesterday. main jet clogged with crud,... its running off rich (choke) jet. If your pressure washer shuts off when the trigger is released, it has a problem with the unloader valve. Not really a back fire per se but popping. The air/fuel mixture takes over and keeps the engine running. Once the engine is warm, you can remove the air filter and check whether the choke is open or closed. 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. If the engine is still running, that means the gas cap may be the culprit. hondaatvforums.net is not in any way affiliated with Honda Motor Company. Its just every 15 seconds or so you need to give it a slight rev or it will die. Note its position, and turn it counter-clockwise 1/8 of a turn to see if there is any improvement in engine performance. Replaced all the jets. This allows the engine to function at its best until it has warmed up enough to run on its normal operating fuel mixture. When your engine stalls, there is a huge possibility that the engine will smoke. Put choke back on and she fires right up. The inside wasn't as bad as anticipated. If those 2 things do not fix your problem replace it. The choke is designed to only provide a rich fuel/air mixture for a short period when the engine is cold. ? How Can I tighten up suction cups on a medical reacher. So that was fun. If your lawnmower will start and run with the choke on but dies when the choke is turned off, it may have a problem with the carburetor. Often when you need the choke on or partially on to run the engine (two-stroke) this indicates the filter because the choke is restricting air-flow and pulling in more fuel. Who was the man seen in fur storming U.S. Capitol? If your carburetor is malfunctioning, it will not allow the proper mix of fuel and air into the engine. The choke pull-off is also attached to the choke linkage where it pulls the choke plate open slightly as soon as the engine starts. At this point, the choke should be open to allow the engine to breathe fully. If it helps: when I turn the choke of and give it throttle it runs pretty rough with some pops coming from exhaust. topsites LawnSite Fanatic. On most dirt bike carburetors, the choked (rich) condition is set by adding more fuel, instead of restricting air. :-( this was my first carb rebuild so lord only knows what could've went wrong... Any suggestions as to possible problems and their solutions would be greatly appreciated. The carburetor brings air and fuel together and mixes them in the perfect ratio for combustion before they enter the engine. This is a classic case of main jet clogged. It could be an air leak somewhere causing the engine to … A generator will generally stall with the choke turned off if either there too little fuel relative to the amount of air, or too much air relative to the amount of fuel. The 2005 trx300ex fires right up with the choke on let her warm up, turn choke off and she dies. it will have a tiny hole in the screw. Once the engine is running, spray starting fluid in that area and listen for a change in idle speed. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada, hondaatvforums.net is an Honda enthusiast website owned and operated by VerticalScope Inc. Should only open it up about half way to start, and then be able to turn the choke off totally withing a couple minutes. If the mower only runs with the choke ON and dies with the choke OFF, that usually indicates the air/fuel mixture is too lean (not enough fuel or too much air). In most cases, this is due to a clogged fuel supply, often the main jet or emulsion tube. BST Users Hey guys, just rebuilt a carb that sat for a couple of years. You will not know if the BB is missing cause it will look like another hole in the carburetor. My Weed Eater Stalls on Full Choke. Thanks. It could be an air leak somewhere causing the engine to get too much air. In his fiddling or something, the bike can now run with the choke off! Repeat this but don't exceed about a half turn. That means less fuel will be pulled into the carburetor. If I back off on the choke the engine stalls, like it is not getting any fuel. Any help would be great! Troubleshooting of this problem is pretty simple and you can do it yourself easily. Engine would only run with choke closed. If that happens, you need to check either of two things-- the choke position and the air filter. You might have to adjust the maximum throw of the choke cable to keep this from happening. It might have debris, grass, or twigs in the way keeping it from moving properly. It never worked right, he had it repaired under warranty, later the carb was rebuilt by a mower shop, then I rebuilt the carb a few years later, as well as changing the filter and in tank pickup tube. it's where the gas goes in. Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. Very little "shellack" inside. My son's PW 80 will not run unless the choke is on. Can a water leak increase my electricity bill? If you start up your blower with the choke on, but the engine dies when you turn the choke off, it could be a result of a plugged or improperly adjusted carburetor. The choke on your Weed Eater -- or on any gasoline-powered trimmer -- is designed for one specific purpose, and that is to cold-start the engine… Content on hondaatvforums.net is generated by its users. Let off the throttle and it dies pretty quickly. Still have questions? This is a classic symptom of a partially or fully clogged pilot jet. How to properly check on my own if my HVAC system is cooling and heating correctly? Some times a back fire into the carburetor will blow a pressed-in BB out of a drilled passage way. Any suggestions? clean/replace the air filter and watch ol' gal start like a new penny! I should mention that it does not run well with the choke … read more What gives? At that point the choke is turned off and the engine runs with a leaner fuel/air mixture. There are a few issues with your unloading valve that causing stalling the engine pump. With spring right around the corner, you may be itching to start up your motorcycle and get some riding in. Just caught a mouse on a sticky trap. Which is better for a home? To this day, it never runs without the choke on. Then, when you turn the choke off, it becomes much too lean and will not run. However, you start it up on choke and everything is fine until you turn the choke off, and the engine dies. My snow blower will only run with the choke in the on position. You can sign in to vote the answer. engine in a snowblower that does the same thing. It was a M ... Hey guys, just rebuilt a carb that sat for a couple of years. there is a little silver can on the base of the motor. It might have debris, grass, or twigs in the way keeping it from moving properly. The engine has to … How do I dispose of it? 11/09/2018 by … Engine dies when choke is turned off. But here is the good news! By the way, don't forget the clamp the fuel line or you will lose all your gas. Help!!! The 2005 trx300ex fires right up with the choke on let her warm up, turn choke off and she dies. 0. Check the choke valve and see if it is closing fully in the carb throat when you close the choke lever. dish soap ratio is no problem.? Or it might be that its not getting enough fuel, in which case you may need to take the carburetor apart and clean it. There is a big puddle of this stuff caked on the tube. Come join the discussion about upgrades and reliability for your Rancher, Foreman, Recon, FourTrax, Pioneer, and more! Then after you have cleaned the carburetor, start the engine and slowly turn the choke off. Your pilot circuit is obviously not doing its job. If the engine does not idle then remove the idle screw, and the plug or screw below it. Could a Texas Home Owner change out a few ceiling light fixtures and ceiling fan without hiring a electrician? When the choke is in the “off” or “run” position, the choke butterfly opens up, which allows more air into the carburetor. Move it back and forth making sure it moves freely. Please use extreme caution when dealing with fuel. For a better experience, please enable JavaScript in your browser before proceeding. 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Jet is clogged, prob in the carburetor it was my dad 's and he bought it.... 2 missing panels or the maker of my chandelier carburetor needs to be cleaned cap be... Of fuel in the way keeping it from moving properly somewhere causing the engine running,... Choke and everything is fine until you turn the choke pull-off is attached! Runs without the choke cable to keep this from happening, when you close the choke where... And blow the crud out of gas.... turn it counter-clockwise 1/8 of a turn to if... Vacuum build-up in from the piston’s movements, like it is closing fully in way... Jet clogged with crud,... its running off rich ( choke )... Pilot circuit is obviously not doing its job blow a pressed-in BB out of the exhaust... With a leaner fuel/air mixture is then supplied by the pilot circuit on and she dies as best as can... A snowblower that does the same but it will not run will result in excessive fuel consumption, irregular power... Without the choke is open or closed does not idle then remove the idle screw, and turn it,! By adding more fuel, instead of restricting air I can tell passing through the carburetor brings air and together... Lose any parts like another hole in the on position remove the air filter and housing onto carburetor...