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Stihl ms260 problem.


larryno1
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Hi I was using the saw fine , stopped it , then started it , it revved really high then stopped. I have given the carb a clean , replaced the tank breather and fuel filter, and have reset the h/l screws then adjusted the LA screw but can't seem to get it running properly. It will start but idle uncontrollably , then you squeeze the throttle and it will cut out! Any help or ideas appreciated thanks .

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Hi I was using the saw fine , stopped it , then started it , it revved really high then stopped. I have given the carb a clean , replaced the tank breather and fuel filter, and have reset the h/l screws then adjusted the LA screw but can't seem to get it running properly. It will start but idle uncontrollably , then you squeeze the throttle and it will cut out! Any help or ideas appreciated thanks .

 

Sounds like it is running lean and may have a bad air leak. Check the impulse line and the inlet manifold - one may be split. Other than that - crank seals.

 

Be aware that trying to run a saw like this may well seize it - if it hasn't already - take the muffler off and check the piston through the exhaust port.

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