SOHC.co.uk Forums > CB500/550
CB550 K3 custom project
thomaspigeon:
I figured out the pin for the floats are getting stuck...
I’ve attached some photos to make sure I do the things right
McCabe-Thiele (Ted):
As long as the bottom clip is in the right position this prevents the float from dropping too far down and jamming the valves open- on my Carbs the spring clips span across the width of the bowl stopping the float from dropping too far down Yours should do the same thing if you have them fitted correctly for your carb. When I had my bottom clips in position with no bowl fitted they stopped the floats from descending too far and allowing the needle valves to drop down too far and jam open.
As regards the carbs fully opening:-
As long as you have the little spring & plunger thing in the right position you should have no trouble with them opening fully. I see no reason why you should ever need to replace the levers as shown in your link unless something is missing. There is what I would describe as a fixed half hip bit that's black in colour and fixed - you then have the small plunger with the wide end facing the fixed cup, then the spring then the lock screw & nut etc. When you fit the throttle link ball into the slot the two halves form a perfect support either side of the ball bit! I cant imagine you ever having enough wear to justify replacement of the link.
Nurse Julie:
I'm just trying to get my head round your photos, something doesn't look right 🤔🤔🤔 I will find a float in a bit and have a look.
Also, if you have fitted all new brass ware, unless they are genuine Honda, there is no guarantee the float vales are shutting fully in the seat.
thomaspigeon:
@macabethiele, the slider open fully but I have a gap that I do not have at the bottom. Im pretty sure their is more play on 1 arm set as I can feel it but I do not think it is a big deal. If it is, I will change them.
So the float looks upside down for me too but they were that way when I opened them (it does nott mean it is right but they are going the same way on cmsnl)
I managed to have them not leaking with a higher float so the valves are sealing properly
I tried to change the shape of the Float tab were the valve is Seating on to make sure the pin does not get jammed. But it does not work...
thomaspigeon:
Thinking the spring in the float valve maybe too stiff and prevent the valve to close properly
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