SOHC.co.uk Forums > CB350/400

Main bearing and primary guides advice

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Nurse Julie:
Yes, you need to replace the shells.

Bryanj:
I agree with julie, thats water contamination and not enough oil changing

Oddjob:
Have you checked the conrod shells yet? I would, just to be sure, I'd expect them to need replacing as well TBH.

Fit the Kawasaki primary chain instead of a Honda chain, it's the same chain but much cheaper. Not 100% sure but seem to recall the number is 92057-1011. It's around £48-50 where the Honda one is over £125 generally. Any Kwak dealer can order one.

Re-use the guides, if the chains new it's not generally touching them anyway. Don't forget to replace the primary damper rubbers at the same time, 8 of them.

McCabe-Thiele (Ted):
Depending on how long the bike has stood if the oil has been water contaminated I would be carefully checking the primary drive & gearbox bearings. In the grand scheme of things they are not expensive to replace if needed.
If you have any surface rust on the various steel shafts it should be easy enough to remove to avoid future problems.

Matt_Harrington:
For reference, I bought the primary chain (Kawasaki) from www.motorcyclespareparts.eu/en
Kawasaki - 920571011 - CHAIN,PRIMARY,MA0364X50L   1   GBP 48.00   GBP 48.00
(Delivery was £7.95)

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