- Joined
- May 7, 2005
- Messages
- 7,095
I have a 74 and it matches the bike with the exception of the mods eg airfilter, I was thinking the odd numbering was replacement crankcases being stamped but the gearbox having the same number rules that out. The breather coming out of the timing chamber identifies them as 850 cases, so unlikely to be a modified 750 set of cases.