Thanks. Good read. But there's a lot of contradictory info here. What about cam break in? What about tuning? These things have to be considered before just firing up a new motor and beating it around the block to break in the rings.

Either way, when I fired this up for the first time, I broke in the cam per Comps instructions. Then, I have to admit, the first several trips around the neighborhood were quite "spirited".

The one thing that does stand out to me though, is the honing job. Perhaps my machinist had it too rough...

Will a compression test tell me if it is indeed the ring seal? What should I expect to get for compression?

Oh, and I've checked all the plugs. They all look pretty clean. No carbon or oil build up at all...

Thanks again for the help!

Last edited by Y4 Challenger; 08/21/11 11:25 AM.