My Mc Culloch will not restart after running for a while?

Have you been able to start the saw at all ? (even after it has cooled) Did you notice any loss of power while it was running? IF it won't run at all now, assuming of course that it has good spark, the kill switch is off, it is getting fuel + air, it could be that you've scored the cylinder or the piston or both. This is probably one of the most common "deaths" these little 2 strokes have. Pull the muffler + spark plug off and look at and feel the piston + cylinder wall by the exhaust port. If you find any long scratches thats probably why it can't run anymore

Scott Smith
September 2006

might be vapor locking try choking for 5-10 pulls if it is a small saw.

al b
September 2006