SOHC.co.uk Forums > CB350/400

Primary Drive Chain Guide

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SeanFD:
Thanks Julie,

Seeing them side by side it’s pretty obvious. I’ll check mine out tomorrow; on visual inspection it looked OK - nothing bent, worn or chewed And it didn’t stretch – but I didn’t think about it sagging like that.

I agree with what you say about not wanting to do it again soon, but it’s always a dilemma; these bikes can last a long time and take a lot of abuse - I’ve just ridden a 750K2 from Zimbabwe to Ireland – so you either decide to replace everything or only stuff that really and clearly needs it.

I started this project on a tidy up and ride basis, so I’m already way past what I started out to do. That in many ways make the decision even more difficult, but if it needs doing, it needs doing.

Bryanj:
The chain is same as a Kawasaki one which can be bought a lot cheaper

SeanFD:

--- Quote from: Bryanj on August 05, 2020, 12:47:51 AM ---The chain is same as a Kawasaki one which can be bought a lot cheaper

--- End quote ---

That’s interesting!

Is this the one?

https://www.motorcyclespareparts.eu/en/kawasaki-parts/920571011

£53.50 incl postage vs £152.02 From DSS.

It’s such a a bargain it’d almost make me go for it whatever!  :D

SeanFD:
Well I replaced the primary and cam chains - all or nothing I thought, and repaired the cam chain adjuster hole - that I thought was in good nick on my “new” cases – using the insert from Dennis at Mybikebits:

https://www.ebay.co.uk/itm/Honda-CB400F-stainless-steel-Cam-Chain-Adjuster-Repair-Kit/274371399590?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

He was very good, taking back the bolt I had bought originally and replacing, at new cost of course, it with the repair kit I now needed.

So now I am ready to join the cases, but .... Looking at the parts fiche, it seems there are 4 dowels between the upper and lower cases

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The 2 x 323s I have located, but I cannot see where the other two, 322,  should go. I have looked at several pics online and none seem to have these dowels in place.

Can anyone advise if these do, in fact, go between the cases? If so, where exactly, and if not, where do they go?

Nurse Julie:
The 322's are oilway dowels and go between the top crank case and the barrels. I'll post a pic in a minute. Don't worry about the O ring that I have around the dowel, that's just an upgrade.

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