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Chainsaw will run for 5 min then stalls out

Craftsman 18 in 36cc chainsaw, will run like a Raped Ape for 10 min then stalls out when squeezing trigger, replaced Spark plug and cleaned filter, full of gas, but at a loss as to why?

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  • jaynpat Jan 06, 2009

    Cleaned the Fuel Filter which helped, seems no one carries replacement filters, even Sears, so I ordered on-line, which will take afew days, but think this will solve my problem, if it does, I'll change mt rating to FIXYA - Thanks for your Help

  • jaynpat Jan 13, 2009

    Still have the same problem, changed fuel and air filters, fresh gas, carb bolts are tight, cleaned the saw, just don't know what else to try.

  • bczerkie May 11, 2010

    when it stalls will it Immediatly restart?

    what is throttle response like?

    if will not restart or repeats same loosen gas cap to reduce vacuum lock then retighten, retry,

    if this helps check for pinched vent line or other tank venting issues.

    Don't run or start with cap loose.


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Fuel is induced into the engine via the diaphram to the carburator. If the diaphram is weak or has a hole in it, it will run out of gas just like you discribed.. 

Posted on Jan 18, 2009

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I would change the in tank fuel filter. Do this by draining the fuel and fishing it out with a stif piece of wire it is conected to a rubber fuel line in the tank. Also check to make shur the screws that hold the carburator to the engine are tight.

Posted on Jan 04, 2009

  • floyd giles Jan 13, 2009

    Adjust high Idle Screw try turning out 1/8 to 1/4 turn


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