Hello,
Could someone tell me where the two 8.8mm o-rings, item number 4 on the diagram enclosed actually fit?
They’re not for the oil jets as they are 10mm.
I can’t find any mention of them in the workshop manual.
Cheers.
https://images.cmsnl.com/img/partslists ... 2_4923.gif
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KZ650B1 Crankcase O-Rings
Moderators: chrisu, paul doran, Taffus, KeithZ1R
- warren3200gt
- Hardcore

- Posts: 3102
- Joined: 13th Jun 2014
- Location: Dartford Kent
Re: KZ650B1 Crankcase O-Rings
Base of the cylinder stud. Alleged to stop oil coming up from the crank case. Two of the case stud threads are open to the crankcase the rest are blind.
I've found thread lock to be more effective.
I've found thread lock to be more effective.
PUM 488 June 2026
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
76 Z900A4, 77 Z650B1, 77 KZ650B1, 77 Z1000A1, 82 Z1000J2, ZRX1100R.
Re: KZ650B1 Crankcase O-Rings
Thanks very much Warren!
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