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Old 01-19-2013, 01:04 AM   #11
chasbmw OP
Beastly Adventurer
Joined: Feb 2006
Location: Bath Uk
Oddometer: 2,299

Dissiton is correct about the sequence of events.

The bike currently has a year old new ND starter, 450w alternator and 2 year old Pc680. I had hoped that the new ND might have sorted the problem, but it remains to a degree.

I don't really want to go to a new flywheel, the flywheels or 9 tooth are still available from Motobins at a bargain price, but then I lose the advantages of both the lightening, the engine has been balanced to suit the flywheel and I would have to find a 9 tooth gear for the ND starter.

There is an old school bike workshop machinist in Bristol called Pistonbroke, I might see what he can suggest about cleaning up the ring gear

Can anyone post a close up picture of lightly worn ring gear with an emphasis on the the starter side of the ring gear?

Thanks to you all

R90s 1070 replica, R90/6, 1958 R50
1971 Commando Fastback
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