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View Full Version : Scooter Dumping fuel out of overflow??


99owned
03-15-2013, 07:54 PM
I have 2 hyosung scooters that are dumping fuel out of the over flow tube. Cleaned the carbs, cause that would be a float sticking kind of issue? But! It is still dumping fuel out of the overflow... any ideas? Only happens when I crank it over.

Admin
03-15-2013, 08:14 PM
Needle valve sticking?

99owned
03-15-2013, 09:33 PM
Nope. Made sure.. :/

teddy554
03-15-2013, 09:54 PM
are the petcocks working correctly are you sure you re installed everything correctly after cleaning seem strange both would do it

99owned
03-15-2013, 10:19 PM
Yeah. I have no clue what's up with these things.

scootnwinn
03-16-2013, 12:19 AM
If the float needle is worn it won't stop the fuel even if the float is working. Check to make sure it is a perfect little cone...

99owned
03-16-2013, 01:04 PM
It is... It's a brand new carb.. put I drained the gas out. It sat for a year. I put fresh in just a week ago with some seafoam, and it just poors it out like nothing. :/

Admin
03-16-2013, 01:51 PM
If the floats aren't sticking, I'd say it has to be the needle valve. :shrug:
Did you try tapping on the bowl when this happens?

99owned
03-16-2013, 04:05 PM
Got the fuel to stop pouring out of the overflow. Just has running issues now. Doesn't idle, acts like it's not getting fuel. If I cover 2/3 of the air intake it will kind of choke it and run ok.

Admin
03-16-2013, 07:16 PM
So what was causing it to overflow?

99owned
03-16-2013, 07:45 PM
Don't know... I sprayed what little bit of carb cleaner i had left in the float needle chamber and stopped. O.o....