SOHC.co.uk Forums > CB350/400

Choke not working after needle position moved

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andut:
Jim (?)

Have you adjusted idle speed screw to compensate anywhere along the line ?  If you have, then there's a good chance that will have changed the 'fast idle' setting on the choke mechanism, and that maybe affecting your choke operation / warm up procedure.  Worth checking to see if the cam on the choke lever (other side of the lever's pivot point at the top of #1 carb) is actually touching / moving the main throttle spindle.

Would you mind telling me where you got your 38 idle jets please ?  I'd be interested to try them on my 400 !

Andy

Greg65:
Air leakage can generate some very funny symptoms. Have the O rings on the manifold rubbers been inspected, replaced? They do dry out, crack and weaken the mixture. Getting them off can be entertaining, when you replace them consider using stainless steel fittings with anti sieze compound if you are not too purest. Hope this helps.

Greg

IronJimCb:

--- Quote from: andut on September 14, 2016, 12:59:07 PM ---Jim (?)

Have you adjusted idle speed screw to compensate anywhere along the line ?  If you have, then there's a good chance that will have changed the 'fast idle' setting on the choke mechanism, and that maybe affecting your choke operation / warm up procedure.  Worth checking to see if the cam on the choke lever (other side of the lever's pivot point at the top of #1 carb) is actually touching / moving the main throttle spindle.

Would you mind telling me where you got your 38 idle jets please ?  I'd be interested to try them on my 400 !

Andy

--- End quote ---
Hey great advise btw I'll check it when I get home I was thinking it may be something like that. I got the 38's from 4into1 but there not factory made they are aftermarket but they seem to do the job well enough. I tried getting them from jets r us but they don't ship to the UK anymore :(

If you've never owned one you'll never understand

CB400F

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