float and needle on carb

Nick Eiselstein /

i have a question about carbs. how does the float and needle function. I have an A# 1981 tmoso silver bullet and i was wondering how it works. And does it need adjusted and/or replaced if so how do you know when it is time?

Re: float and needle on carb

Courtis Fuller /

The float raises and lowers the needle valve.. As gas fills the float bowl, the float raises and closes the needle valve, and as more fuel is needed the float lowers which lets the needle valve open and more fuel flows in.

Hope that helps,


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