Since putting my '99 M1 back together I've noticed that the engine is jerky on the overrun, low rev & throttle settings and the idle speed seems to need playing about with frequently.
I'm thinking that the usual fight to get the carb off might have disturbed the manifold /head seals which are original.
Am I on the right track here - and if I am, my manual says that the '00 models had a one piece clamp and seal. Would I be better fitting these or does the '99 part supercede to these anyway?
Do I absolutely have to take the carb off the manifold to swap these out?
Advice appreciated.