Any idea what good compression readings would be on a 33 Generac? It has natural gas internals, which to my understanding has higher compression due to the flat top pistons. I know you are looking for both cylinders to be the same but I'm also looking for a general idea as to what be considered too low compression and what is dangerously high compression and looking for future problems.

i not sure the answer to your question ,but here is the no to someone that can he is a generac dealer m&n small engine --mlsmengine@gmail.com 970-201-0335 michael wolfe.

Mine is making 195 psi static with a bigger cam. You should be in the 170-180 range.