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+--- Thread: Sticking fuel float (/showthread.php?tid=62528)
Sticking fuel float - reillypadraig - 24-03-13
Float has been sticking over the past while but working on and of but now it's just stuck at full and even filling the tank up and shaking fuel around won't move it,
I'v been looking for another thread on this as I seen it before but can't find
Re: Sticking fuel float - packie - 24-03-13
....and you were saying bikes haven't been kind to me!!
For me, that would be a carbs out jobbie to investigate proper. Maybe you could manage to blast some air through the lines if its crud sitting on the valve seat and keeping the value open, but since there is a fuel filter in place, It's more highly likely that the problem is mechanical and not crud.
I'd be looking at probably your float height tab getting either set wrong, bent slightly by mistake, or your float just went kaput. When yer dyno guy worked on these carbs, I presume he had them open to check and play around with them so that the were in good condition before fitting them. But in his favour, if he adjusted the float wrong or bent the tab by mistake, you would have had the problem from day one. So maybe yer whole float is just kaput or sticky.
Other than than that, I'd be looking at the other likely scenario of the valve and seat worn and not creating a proper seal when closed.
It maybe possible (I did it on a old Z900) to remove the float bowl with the carbs still on and bend the tab a little to adjust the float height, but this is not very accurate and more of a "hit and miss" way of adjusting it. And it would only apply to the outer carbs as the inner ones are a bastard just to adjust the pilot screws let alone get all the float bowl screws open with carbs on.
And as an after thought....I dunno the "ins and outs" of the fuel pump, but I presume that there is something like a valve that closes on the fuel pump until it senses it need to pump more fuel????. Is it possible that if this valve failed, that fuel would continue on and create pressure on the float??? Maybe it is an area that might warrant investigating too if the other avenues draw a blank.
Pain in the hole problem.
Re: Sticking fuel float - red98 - 24-03-13
morning reillypadraig......do we have crossed wires here.....is it your fuel gauge float thats sticking or your carb float
Re: Sticking fuel float - packie - 24-03-13
(24-03-13, 11:55 AM)red98 link Wrote: morning reillypadraig......do we have crossed wires here.....is it your fuel gauge float thats sticking or your carb float
ooops!!!.......just re-reading Padraigh's thread again, it would seem that it's his fuel gauge that is sticking and not his float bowl.....sorry!!
Re: Sticking fuel float - reillypadraig - 24-03-13
Afternoon red, yea sorry was bit realty for myself even haha, yea it's my fuel gauge. Thanks for the write up though packie
Re: Sticking fuel float - red98 - 24-03-13
fuel gauge is easier.......remove tank and turn upside down......best to empty it first :o .....sender unit is held in with 4 screws (i think) you might have to twist it a bit to get it out but easy enough....check the float for holes and also the hinge linkage ,might just need freeing up and easing back into life
Re: Sticking fuel float - reillypadraig - 25-03-13
Sounds easy but u know my bike, last time I looked those s bolts were rusted to shite. So lots of fun ahead I surpose?