How to check for blown head gasket on lawn mower

Accurate way to check for leak head gasket

[jimmyg]

Thank you!!! You are the only one that I saw on you tube doing this test right for people trying to make sure it is a leaking head gasket and not the piston rings going bad cause if it wouldn't have been not leaking around the head then I that would have been your next test cause you verified that it was the head not the piston rings everybody else's video just a assumed it was a busted head gasket and never did a leakage test .... GREAT

[mgomez]

Can head gasket cause no compression also?