How long do the o-rings at the exhaust-engine connection normally last, mine seem to last a few rides and then the exhaust starts to rattle, especially as the idles drop (eg if i rev and then pull in the clutch)
I am using 44x3.0 viton o-rings, so i doubt they are melting and the last time i fitted the pipe i spent a long time making sure that it was fitting square (rattle got really bad this weekend when i banged the pipe on a rock, so i know it is not square anymore!)
