Question about Poulan Pro 16-Inch 38 cc Anti-Vibration Chainsaw #PP3516AVX

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Chain saw starts and runs once or twice, 3rd time will not start again, spark plug wet - should i replace carburetor?

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Most carburetors can be rebuilt and solve most problems, but occasionally the debris is into places where cleaning is not possible, and must be replaced. I would try some basics first though.

Overfuel or 'rich' condition
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check Air filter for fuel saturation
4) Allow engine to run for 5 minutes to excess fuel from muffler
5) Fuel mixture ratio: Make sure the oil mix is per your manufactures recommendations
6) If after the above the engine is still smoking and blubbering:
Adjust carb mixture screws to a 'less rich' setting
*NOTE: only move mixture screws 1/8 of a turn at a time,
and try operation before any more adjustment

Posted on Nov 12, 2009


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