jermzfree
Registered
This vibrating sound has been coming from the top of the engine since I had it serviced to fix a bent valve. It only makes the sound at exactly 2k rpm and not at idle. At first I thought it was a loose fairing screw or something superficial, but definitely coming from the head. The chatty sound all but goes away when the engine is warmed up. I am thinking I have a problem. Can anyone tell me what is the cause of this sound? (BTW 2002 rcc stage 1 oversized injectors and ecu flash.) Thanks!