i got a strange noise coming from the rear end of my enginebay at below 2000rpm. all compressions the same as they should be and it sounds fine above 2000. any body had this or could it be something i have dropped inside the hull as i really dont want to have to take it apart as i just finished building a triple ultra for a m8 and am sick to the teeth of triples atm

stripped rear pipe and head and the piston seemed to move about alot compared to the middle head so lookd like the lot is coming out

Sorry to hear that but don't you feel better that you took it apart rather than not stripping it down and having it cost you a new cylinder and piston if not the motor itself...

i do but its been a long time since i installed them hope i remember everything lol