Author Topic: Weird oil leak near rotor, 1980 CB650C  (Read 468 times)

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Offline ABikeNamedTrouble

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Weird oil leak near rotor, 1980 CB650C
« on: January 30, 2012, 12:34:09 PM »
Hey everybody!  It's been awhile since I've posted here.  I've thankfully enjoyed several months of no problems!  Anyway my charging system is acting funky (hopefully I'll figure it out and won't have to start another 650 charging thread!) and while checking the rotor resistance I noticed oil leaking from the plug directly beneath the rotor, here:




I also noticed a considerable about of residue on the rotor contacts, although I understand some is normal and I think it might be unrelated to the oil leak:


I noticed a leak here before, replaced the o-ring on the plug and applied some hondabond.  Doesn't seem to have helped.

Anyone know why a leak would develop here?  Any ideas on how to proceed?? 
- Adam

1980 CB650c Custom
Keihin PD mechanical carbs
Stock air box and 4-4 exhaust
http://forums.sohc4.net/index.php?topic=97504.0