064 won't start

[Griggs55]

Picked up an 064 off marketplace that was in need of some tlc. Replaced the carb. Did a quick cleanup( gas tank, oil tank,etc..) . Had it running & cut a few cookies off a 30+" black walnut when it started getting really hot then shut down. When I tried re-cranking I wasn't getting any fire and the compression was intense ( to the point that I could barely get it pulled) .
So far all I've done is pull the spark plug to see if that relieves the compression, it does. Where do I go from here..

 

[muddy42]

Was the compression still extreme after the saw cooled? Was the carb at standard settings or too lean? Personally I would remove the muffler and look through the exhaust port for scoring or ring damage and through the spark plug hole. Id also check for a spark with a new spark plug. Before spending any money on a saw, you should always pressure and vac test - this is not the same as a compression test.

 

[lone wolf]

Was the compression still extreme after the saw cooled? Was the carb at standard settings or too lean? Personally I would remove the muffler and look through the exhaust port for scoring or ring damage and through the spark plug hole. Id also check for a spark with a new spark plug. Before spending any money on a saw, you should always pressure and vac test - this is not the same as a compression test.

THIS!

 

[Gord404]

a saw that old if it hasn't had new seals you might have an aiir leak but first as said remove the muffler and look a your piston

 

[Mad Professor]

Check yer piston. Don't run it until you do......