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Hi,i have a stihl 026 chainsaw with a bad flooding problem.I have checked the inlet needle in the carb and it is not stuck.I replaced the diaphrams and double checked that i installed them properly.After re-assembly,2 pulls on the starter and the crankcase is full of gas and pouring out the muffler ! This saw has been trouble free for years and well maintained.any ideas would be greatfully appreciated,thankyou.......steve

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Hi please check the tank breather it maybe allowing to build up pressure and unsseating the needle valve

try another breather or tank cap if it uses cap with breather

check that the main check valve / nozzle is working correctly

you mentioned carb has been re-kited

did you fit the pump diaphram on carb then the pump gasket ?

also the metering diaphram has the gasket 1st then diaphram then the cover ( make sure vent hole is clear on cover )

but sounds like a faulty breather

cheers

Posted on Aug 21, 2010

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