take it to a repair shop. have the rings and cylinder walls and pressure checked.

Jim wrote:

Hi,

Does anyone have a service manual that can tell me the cranking compression pressure range for
the GXV140 engine. The mower is about 8 years old and has smoked on cold startups almost since
new. It has 75 psi when cold which seems low. I'm wonder if I burned the rings when it was
new by cutting a yard of tall grass.

Thanks,

Jim in Knoxville
(remove the O's)