Try recleaning carb--rebuild kit --or replace --do a complete tune up air fuel filters - plug etc
SOURCE: Engine will not reach full operating speed, needs
Need to replace exhaust? Are you for real? Guru of what? Asinine answers?
SOURCE: kohler k582 runs poorly at operating speed.
ALWAYS CHECK THE POINTS!!! 20 years operating this engine and you'd think I would know better. The points were severely pitted. Spec said .020 but actual is .013. The cold weather had me suspecting a carb problem. DOH!
SOURCE: 31cc Poulan Pro Weedeater
Sounds as though the fuel filter may be plugged. The filter is in the tank. Take a look, see if it is visible. Remove and replace. Good luck...Lee
SOURCE: her chee fun 50 scooter. when trying to accelerate
Assuming everything is back toether properly and was not the problem the frst place, remove the exhaust pipe to expose the exhaust ports to ensure they are not carbon block. Also check the exhaust it self for a spark arrestor screen that could hve been carbon fouled and clogged. Cannot free flow because of the problems noted above, you will not be able to run a two-stroke engine reliably.
SOURCE: Model 350777 Type 1137-E1
A lean mixture can cause hunting. Locate the mixture screw on the carburettor (there are two other scrws here but these act as stops to adjust the high and idle sppeds of the engine) and after the engine warms up, try turning it a quarter of a turn anti-clockwise and see what the effect is.
Have a look at this link:
http://www.briggsandstratton.com/engines/support/frequently-asked-questions/Adjusting%20high%20speed%20mixture/
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