SOHC.co.uk Forums > CB350/400

Hello, I have a 400 at last

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Nurse Julie:
 ::) ::) ::) ::) ::) ::) OK, 20 times but i did not want to appear too obsessive  ;D ;D ;D

tom400f:
What do you mean, obsessive??

Great result on the carbs  :) ;D

Johndoc:
Thanks guys, really good to know you are there and I can check things through with you. An electrician friend checked the coils, both are actually ok, cylinder 1 and 2 is not firing, it looks like it is the HT leads that are dodgy, they have the old trick of silicon around the joints and they feel quite brittle. I assume the airbox if fitted as there is an air filter visible from the cover? The guy who owned this bike had it in his front room for 20 years! He treated it like a giant airfix kit, saving up for the next part. (I have a folder full of DS receipts) He done a fantastic job of the cosmetics but admitted himself that he was not so hot at tuning (could not really start the engine three floors up in his flat anyway!) and he was not keen on riding the bike either. I am thinking, do the coils, set up the carbs and then assess things from there.

tom400f:
So the 400F went into the lift then??  :P

The airbox under the seat, yes. Remove the plastic cover and the filter is inside, held against the oval into the manifold by a "spring" which you just pull out.

Carb attitude on your bike is a mystery.

Cylinders 1 and 2 don't share ignition components: 1,4; 2,3

Always interesting to see a new bike and how it gets worked on :)

Johndoc:
I will take some more photos of the carbs tomorrow and see if it makes any more sense to anyone. I know all the inlet rubbers etc were changed, could it be they are just not lined up correctly? Yes he brought it down in the lift, I have no idea how he done that, I saw the bike in the communal garage area. Also DS don't seem to have the headlight bolts, was wondering if these could be made in lathe or if there is another source for them. Oh just a though, a photograph of how they look would be appreciated as they might even be among the spares I have in those three boxes!
Thanks again 

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