Topic: sticky floats 750

[vince]

what to do ?

[736cc]

Sometimes you gotta "tweak" the floats a little because they hang-up on carb bowl. Sometimes carb bowl gasket fouls float. Sometimes the bowl is clipped-on slightly crooked. Sometimes the float is "sunk" (leaks and filled w/ gas). To test this, remove float, shake it and listen for gas sloshing around inside float. If so, replace it. All this can be done w/o removing carbs from bike in a couple minutes.

[Bob Wessner]

Maybe also check the float pivot pins to make sure they are clean, no burs, etc.

[BobbyR]

You may also want to check the needle valves, sometimes varnish can build up on them and they get sticky.

[chung]

You MUST limit the drop on the float.

The contact point between the float and the needle valve is critical in most Carbs. As the float drops, the angle increases and the float pushes the needle off to the side as it tries to close the valve.

This causes the needle to bind in it's bore. It doesn't seat so it leaks/dumps fuel on the deck when you park it.

So You whack it with something and it quits leaking? For the moment.

It rattles around while you are driving but when you kill the motor........... you do the math