hi all, i have recently bought a crosstourer vfr1200x, i would of posted in that section but it is dead so with them having similar engines i thought id try get some help in here if thats ok. anyway my engine is making a horrible sound under accelleration above 3000rpm, it sounds like one of the pistons is hitting something with every rotation or big end bearing knock ! the bike revs perfectly when stationary, it only when moving the noise starts above 3000rpm. i have lifted the tank to see if there was something loose which there wasnt, the fuel is of good quality and new and the engine oil and filters have been changed in the last couple of days, the noise was there before any work was done to the bike. i though maybe that the cam chain was really loose but after reading quite a bit about the vfr1200 engine and the cam chain tensioner faults it would seem mine doesnt have any of the usual tell tale signs. my engine starts perfectly from cold with no noise whatsoever, briefly rev it to red line and it sound perfect, its only when riding and above 3000rpm ! does anyone have a idea what it could be ?