R90s needs crank
I need a crankshaft for a 75 R90s. This brings me to several questions. How can I identify a crank as being compatible for my needs? Further, how can I determine if a crank is from a R75, R90, etc.? I'm also going to need a cam which brings up similiar questions. For a little back ground, I bought a one owner non-running R90s with 40,000 miles. The older original owner said it started making an odd noise many years ago. Took it to a dealer, they partially disassembled it and reported it needed a crank. At that point the old boy parked it as he had multiple BMW's to ride. I removed the crank and it is in fact cracked! Cam is also corroded beyond use at the snout. I have some R75 and R80 stuff, just doubt any is compatible?
I have a used crank that i bought years ago that wasn't used and is in good shape for a R100/7. And a cam that was removed from, i think a 90/6. If you can get the identifying marks for me I'll check n send pics.
Ray in Portland oregon