hey, my name is ken from ireland. (92 xt600e) and i´m just wondering if anyone has had a problem with a loud 5th gear... i ripped my 3ja apart to find a worn 5th on main and lay shaft.... but only 38k on the clock? this cant be normal... i took it to an engineer to find out that it was an oil problem !!!!! but the owner only used 10w-40... so it doesn´t make sense. please help...