I have a 1969 honda pc50 and it's almost a great little moped. I need to hear from anyone who has owned one of these because i have a whirring noise coming from the crankcase and it just occured to me (after 2 weeks of browsing and head scratching)that it could be normal! Are these bikes incredibley noisey??? The blurt of the engine is over ridden by a whirring sound that gets louder as i accelerate.
I can peddle it without the motor running(gears disengaged) and it sounds fine
i can rev the engine (gears disengaged) and it sounds fine
i had assumed it was the centrifugal clutch but ive opened the crankcase and it seems fine.
Are these bikes notorious for being noisey. or has some bearing fried?
I've looked all over for a manual( including links on this site) but no luck
Any comments would be greatly appreciated, i am sick of being a 30mph air raid siren.