To re-stick your engine badge, use 3M emblem adhesive or 3M door gasket adhesive. I bought my tube at NAPA. Be sure to clean the mating surfaces well ...

First off, thank you for joining the Airheads Beemer Club.(ABC) Slow to return to idle when warmed up is an indication of a sticking centrifugal adva...

Well, I've never seen that before. If this were one of my bikes, I would try avoiding a crank replacement. The wire brush will not do much for you....