[Josh Randall]

I bought a 30 CCPU a few weeks ago.

It runs good but i'm chasing a knock.

I found the timing gear to be loose so i replaced it.
That didn't cure the problem.

It doesn't knock if the spark lever is left all the way up but then it has poor power.... Also it stops knocking when i shift into third gear loading the engine. (first and second gear still has the knock).

I did a search and found read lots of old threads.. But non addressed this condition.

Thanks for any suggestions.

Randall