Mounted a new rear tire on the GS yesterday, and noticed a clunking from the driveshaft while rotating the wheel. I guess it's time to inspect the gearbox too. So far this summer, I've replaced the headlight switch, alt. rotor, fork seals, rear shock, head gaskets, pushrod tubes, and rear shock. My K100RS is jumping out of second gear under hard acceleration (is there any other kind?) and this weekend's project is to inspect that. My '73 Norton has been running fine, I've put more miles on it this summer than the two BMWs combined, and other than burning up two sets of tires, hasn't cost me more than gas. Where's the legendary BMW reliability?