SOHC.co.uk Forums > CB350/400

Newbie 400 build advise

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andut:
Welcome to the forum Andy !

I'm a few months ahead of you with a similar project and from a similar background !  As others have mentioned, you'll probably find that you have most of the tools required if you have restored cars, but from my experience, I'd say an impact driver and a tap & die set were very useful ! (had to clean out every tapped hole in crankcases after blast cleaning !) and you'll probably want the specialist tools for clutch removal

Parts seem pretty easily available from David Silver etc and the CMSL web site has invaluable diagrams on every part of the bike.  The advice and knowledge here is a priceless commodity and I'll happily answer any Qu's you have if I can - I'm by no means an expert, but there's a good chance that I will have recently done whatever you're about to do !

Enjoy the rebuild and the advice / experience on here, and look forward to getting the bike back on the road (I'm not far off now !)

Andy

Spitfire:
Hi Andy, watch out for the bolts on a Honda, some are metric fine and some have different sized heads to standard, here is a write up that I got from the Custom Fasteners site when I was ordering bolts for my rebuild.
http://custom-fasteners.co.uk/


IMPORTANT - PLEASE READ BEFORE ORDERING METRIC BOLTS.
Metric bolts in M4, M5, M6, M7 and M8 diameters are suitable for both European and Japanese motorcycles and cars.

However, M10 in the standard 1.50 pitch are only suitable as replacements on European machines. They will not fit Japanese vehicles which use their own specialised fine thread. Please see the next section in the catalogue for our specially produced range of M10 and M12 fine thread bolts for Japanese vehicles.

M10(1.25 pitch) and M12(1.25 pitch) FINE THREAD METRIC BOLTS
For use on Japanese motorcycles and cars. M10(1.25) bolts have a 17mm spanner size, M12(1.25) bolts have a l9mm spanner size. The Japanese often
use a smaller size head on their bolts, so please check there is sufficient clearance for the standard size head we supply, before ordering.


 NOTES ON METRIC BOLTS
M4 fits spanner size 7mm. M4 thread pitch is 0.70mm.
M5 fits spanner size 8mm. M5 thread pitch is 0.80mm.
M6 fits spanner size 10mm. M6 thread pitch is 1.00mm.
M7 fits spanner size 11mm. M7 thread pitch is 1.00mm.
M8 fits spanner size 13mm. (Japanese M8 bolts use 12mm spanner size). M8 thread pitch is 1.25mm.
M10 fits spanner size 17mm. M10 thread pitch is 1.50mm.

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Cheers

Dennis

Chris400F:
Hi Andy, Welcome from me to.

If you need to overhaul your carbs then I and a number of others have used the rebuild kits from Cruzinimage.
http://stores.ebay.co.uk/cruzinimage-uk1484

They do other parts as well, have a browse through their shop. I recently noticed a master cylinder rebuild kit a lot cheaper than the one I had bought from DS.

Nurse Julie:
Welcome.
Have fun with your 400/4 and the forum
Julie

Chris400F:
Forgot to add that you will probably find a Parts List very useful, both for part numbers and to show
where bits go. I got mine from here which seems good value at £12:
http://www.ebay.co.uk/itm/Honda-Parts-List-Book-CB400F-400-4-400-Four-1970s-Reproduction-Original-Honda-/251407786645?pt=LH_DefaultDomain_3&hash=item3a89126295

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