Greetings,

I'm having a lot of trouble getting the OS 15 LA in my Gnat to run properly. Regardless of all the things I've tried, it still lacks power. While I was breaking it in, it developed a leaky backplate. Since then, I've RTV'd the backplate and put in cap screws, so no more leaks there. It ran great for the first couple flights before that backplate leak. Is there a possibility that I ran it way too lean due to that leak during the breakin period? Would that have a long term effect of preventing it from running properly? I've gone through everything I can think of and tightened everything, and to no avail. My buddie's runs much faster and higher pitched than mine.

Any suggestions? What could I be missing?

I would appreciate any help that you guys could give me.

Thanks,
-Pat-