SOHC.co.uk Forums > CB350/400
Still carb troubles
McCabe-Thiele (Ted):
Sorry again to hear about Rose, good to read you are taking her advice & cracking on with the 400.
Can't remember without trawling through your old posts if you did a bench sync or not.
It was beginners luck with my 400 as I did the bench sync after rebuilding the carbs I think it's called to get all the sliders equal iirc I used a 1/8" drill bit shaft to get them all the same.
The below links I found very handy as well as the video & tips here.
.https://www.vintagebikebuilder.com/cb350-400f-carb-rebuild-demonstration.html
https://www.youtube.com/watch?v=JFTOfYl5BSc
philward:
Can't help with the carbs Bill but so sorry to hear about your loss and hope you get her wish sorted!
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Multiman:
So sorry to hear of your loss.
But heartened to hear you are pressing on with getting the 400 sorted.
If the advice above doesn't work my similar problems were sorted when I got the correct brass in all the carbs.
Best wishes
Tim
Bryanj:
Bill, sounds like the bench sync wasnt quite right, i had the same problem with the 400 carb jigsaw i had for a member on here, what Ken suggested is a good idea, if you can get them off, undo the tickover screw all the way then unadjust all yhe little adjusters till you are certain all the slides bottom out, pick one to use as set point and lock small adjuster then using big tickover screw adjust till smallest, undamaged, drill shank, idealy 1mm, just slides under flat side of throttle slide(engine side) the adjust all small adjusters so all slides are same using the drill as a feeler gauge.
If you had them totally apart check you havent mixed the slides up as they are handed and you would not be the first to make that mistake mate.
Condolances on your wife and we will do all we can to get that *^##*^bike sorted
billdn:
--- Quote from: royhall on September 04, 2023, 07:13:20 PM ---Sorry for your loss Bill.
That sounds to me like the quadrant is not positioned correctly when it was reassembled. Got the tee shirt for that one, took me ages to find it but the symptoms were as described above. Repositioned things correctly and it was spot on. Unfortunately the old memory won't allow me to remember how I fixed it but someone will know.
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--- End quote ---
Thanks Roy,
Not sure what you mean by the quadrant ? Do you mean the part the the push/pull throttle cables connect to? not sure how that could be misaligned but every day is a school day with this.
Cheers
Bill
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