dumping fuel through airbox

[whtrice82]

I took the tank off of the bike a week ago to paint it. When i put it back on today, it dumps fuel through the airbox. Petcocks seem to be in working order. I have the hoses connected to the right spots, but I cant figure why it is dumping fuel. Any suggestions would be much appreciated!

The bike is an 80 xs 1100 special

[whtrice82]

nevermind. The petcocks are not fine. ordering rebuild now

[oldnortonrider]

Mine does it often~~even with inline filters. You've probably got a bit of grit between float needle(s) and float needle seat(s). Get a piece of wood, or wooden dowel an inch or so in diameter~~6 inches or longer. And a hammer. Motorcycle uprite on centerstand.
Petcocks on; fuel leaking. Put one end of dowel against the top of float chamber and where the carb body join~~tap it lightly with the hammer. Or a little "more" than lightly. I've got individual pod filters, so I can tell which carb is drizzlin'. Sometimes you can get it right, on the side stand; better on centerstand.

[Ken Talbot]

If it leaks fuel through the airbox, you have two problems. You have leaking petcocks, plus you have leaking float valves. If either one of these works properly, you will not have a leak. If you have any leak, both are in trouble.

[whtrice82]

thanks for the reply, after searching I found a lot about both problems. Just need time to go faster so the parts get here quicker.

[whtrice82]

I cant believe it, but the ole dowel trick worked. that is amazing. Thanks guys!