FORA 40 q500.problem?
I have this fora 40.that I have run a few tanks through.It takes nelson glow plugs.ive gone through three plugs so far.and I havent even flown it.im not running it lean.ive only got it up to 17k on a 8.5x7.0 there were three extra head shims that came with the engine.no instructions came with it either.heres the dumb question.what are the head shims for?im still kindda new to tinkering with engines.and now im stuck for a while.because I have no more plugs.and have to order them.and they take forever to get here.