I'm from out of town and looking for a mechanic who's familiar with /5 transmissions. I haven't been able to find anyone online (European Motorcycles of Pittsburgh seems not to work on older bikes).
Details: I'm from Chicago and in week one of a two week road trip on a 1971 R75/5 and currently in Pittsburgh and on my way to College Station. About 100 miles ago, the bike started making grinding noises when in low gears and at low speeds. I assume it's the transmission. About 50 miles ago, the groaning was joined by chirping. There are no (other) issues with the clutch function. An unusual but light clanking persists while rolling with the clutch engaged. There are no noises in neutral even while rolling. I just got the bike back from its annual service with the guys at Motoworks in Chicago before starting on the trip, all the fluids are clear and topped up (double checked yesterday, after the issue started). I've been on a number of long trips on this bike and never had problems.
Thanks,
Jason