Carburetor float question

[cosmo497]

On my 1999 Force 50hp, the bowl floods in idle. It is fine as long as the throttle is open even a little. When I looked at the float seal, it was flat, and didn't appear it would be very effective at stopping the flow of fuel. Should that seal be contoured to make a tighter seal on the intake needle? Also, the little metal piece that had the seal on it I think was rivited to the plastic float. When I look at pictures of replacement floats, they do not even have the metal piece on there. It that a separate part? Thanks

 

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Re: Carburetor float question

Not real familar with this particular carb. but most seats are crisp to increase the pressure at contact to insure seal. Did you remove the seat to look at it? If so it is probably damaged. It must also be leaking when not running.

 

[cosmo497]

Re: Carburetor float question

Thanks. I didn't mess with the metal piece, just inspected it. It was just in researching to see what the seal should look like, none of the photos online (only 2 or 3 I could find) had that piece on there. Just the white plastic float body. Anyways, the seal is flat in shape, and when I pressed on it lightly and blew through the inlet, it still seemed to let in a little air. Just wanted to see if maybe someone knew if it should be shaped for a better seal. I suspect the ethanol in the fuel may have dissolved it somewhat to cause the seal to not work. Once it dies, there is residual drippage of fuel, but it stops soon after.

 

[12Footer]

Re: Carburetor float question

The tip of the float needle is rubber... You are correct. It would be peachy if the fuels we use did not contain ethenol. The fuel pump diaphram is probably next.
It could be as simple as adjusting the float at the needle tab tho (up about 1/32").