s but with no success. Would you help me fix this?
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Have you checked your fuel filter in the tank? and /or replaced it and is there fresh gas mix or left over from last season?, sounds like if your filter is good then I would remove the carb and dissasemble it and thouroly clean it and put back together, I would recomend before cleaning carb to pull muffler off and make sure the screen is not plugged from 2 cycle exhaust. check your spark plug and replace it if all carboned up, then start initially with 1 1/2 turns out on both jets, then once it runs adj the carb first on “L” which is low speed to get it to idle,turn one way tillslows down then turn other way till slows down and find 1/2 way point then hold throttle wide open momentarlly to see if it revs, then move the screw out till it starts to slow down , you want it right on the edge,remember a little rich is always better than lean! then check low speed for acceleration low to high and adj “L” to get a good transition. Hope this helped you out, and if you are inside the carb make sure you pop out the inlet screen and clean it out too!
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If your carburetor is clogged, it can cause your leaf blower`s engine to die when the choke is disengaged. You can disassemble it, clean it, and replace individual parts with a carb kit. Once your carburetor has been unclogged, cleaned, and re-assembled using the carb kit, the engine should run with the choke off.
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving old fuel in the leaf blower. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog the fuel filter and cause the engine to stall.
It sounds like this may be a sign of a faulty blower motor or bad wiring between the motor and the resistor. As you might know, these have electric motors in them that wear out over time and will begin to make squeaking or grinding noises as the bearings begin to wear out.
A common problem that could be keeping your leaf blower from starting is a blocked air filter. Clogged air filters cause the blower`s engine to receive too much fuel and not enough air, which often leads to a faulty start (or no start at all).
If the carburetor is new or has been rebuilt, you should set it to “factory” adjustment. You can do so by adjusting the idle mixture screws to 1.5-2 turns out, and the idle speed screw to 1-1.5 turns in. Warm the Engine Up. The engine`s running temperature directly correlates with proper air and fuel mixtures.
If your bike is only running with the choke on, it`s probably because it`s running too lean. This can be caused by a few different things: All internal combustion engines need three things to run: fuel, air, and spark. If any of these are missing or not working properly, the engine won`t run.
When your trimmer starts and runs on choke, it could be because the check valve in the gas cap is clogged. Start the trimmer and gently unscrew the gas cap halfway off. Turn the choke off and assess. If the engine is still running, that means the gas cap may be the culprit.
Why Does Your Lawn Mower Only Run With Choke On? Your lawn mower only runs with choke on because of a problem with the engine fuel-air mixture system, which can be caused by the carburetor, bad fuel, or air leaks. The choke compels more fuel in the combustion chamber to help the engine to turn over when cold.
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Seems to start easily run for a few minutes and then slow and stop–bulb remains full –gas is good–have tried half choke in case too lean–did not solve–also seems possibly related to the angle I hold it at–seems to cut out quicker if blower tube angled more downward.
Your filter may be hanging up in the tank. you also my be losing compression
Have to run on half choke,just stops if i turn it off.fuel is 25 to 1. thanks alan.
More than likely a small passage way in the carb is clogged. You can try some carb cleaner, but you may need to disassemble the carb and clean it out. Be advised that these passageways are sometimes as fine as a human hair, and almost impossible to clear sometimes. A new carb may be required if it is worth it to you. Sorry.
While running what setting does the choke lever need to be placed in
Depending on how your unit runs, it may need to be on half choke until the motor warms up. After the motor gets hot it should run with the choke fully off.
Will only develop power (and run somewhat properly) when the choke is engaged about 90%. Starts fine.
Sounds to me as tho you may have a loose carburetor or another part that is letting air into the system. Check all bolts and screws for tightness. Also, you may need to clean the carburetor or put some cleaner in your gas. Not too much, only about a tablespoon, but check the screws/bolts first.
Blower only runs with full choke. When I switch to half choke, it dies and won’t start.
It may simply need the high speed jet opening up a bit (2 screws near eachother on the carb and the high speed is furthest from the engine)failing that it needs a carb kit…. this is a serviceable item changed regularly.
My blower only runs with 3/4 choke even after warm up.
Look on the carb for 2 screws side by side. where those screws go into the carb, it will be stamped with an “H” and “L”. Open the screw that is next to the “H”, counterclockwise about 1/4 turn at a time with the engine running, that should solve it.
Echo pb500 only runs with choke open – Echo Gas Blower 162 MPH 450 CFM Blower PB500T
I’m not to sure about the question. But you say it runs with the chock open. Your engine will only run with the chock open. Can you clarify?
Want run unless choke remains on – Stihl Bg72 Leaf Blower Intake
Probably fuel starvation.Wrong fuel air mix settings on the carb. Damaged carb diaphragm.