thanks for your help crispy c and adam bike doc put a new woodruth key in and seem to be ok except when u open it up to put it in third it sounds to be making a grinding noise near fly wheel
your welcome mate, what bike are we talking about again ?may be a main bearing !
adam bike doctor (of milton keynes motorcycle centre)
January 2011
Hi mate, thats the zonshen 110 pit bike? assuming it's not the flywheel rubbing, noise could be clutch, gearbox bearings, crankshaft related, all the best.