When I roll or pedal my 50V with the engine off, I can hear a lot of noise coming from behind the driven pulley. I thought it was a bad bearing, but after looking at the repair manual it seems that this pulley and the pedals don't have any ball bearings, just bushings. Is that the case? Anyway, now I think it's coming from the ratchet-and-pawl/freewheel mechanism in the gear behind the pulley.
Basically, I was wondering if anyone's replaced this part before, if there's a source for replacement ones other than by parting out another bike, if they ever need to be taken apart and greased, etc. Or are they always noisy? Thanks for any input you may have!