SOHC.co.uk Forums > CB350/400

New CB 400/4 owner with questions

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Biggles:
Thanks for the info!


I did notice after getting the bike upto full temperature the bike won't idle lower than 1.5k, this seems extremely high and is making me think tuning is badly needed..
There does seem to be a buzz at the front while riding as well, not sure if thats related
Next week I'm going to adjust the valves and balance the carbs so will see what this does. As said the clutch was only done 400 miles ago and thinking about it no self respecting garage would ignore major camchain noise considering the extra opportunitys for fleecing the previous owner for yet more money.

Also... I've never owned a bike of this age or configuration so my expectations of noise are probably quite different to all of you with more experience!


I'll give it a tune up monday and see how that goes!

exvalvesetdabbler:
If it won't idle when warm I would suspect the pilot mixture is wrong,

Do you have the standard air box and filter?

The pilot jets are quite small and it doesn't take much to block them. However if the exhaust smells of petrol then there may be other reasons such as float heights or worn needles.

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