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.

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....

03-15-2013, 09:54 PM	#4
teddy554 Join Date: Sep 2011 Location: staunton va Posts: 319	are the petcocks working correctly are you sure you re installed everything correctly after cleaning seem strange both would do it __________________ 2010 Cpi Oliver 70cc, naruku trans kit, downhill handle bars, tecnigas rsll pipe, s6 4g rollers, Vento R4 with 90cc 1e52qmf technigas next r 100cc pipe Naruku, 21mm race carb, s6 4.5 g rollers
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03-16-2013, 12:19 AM	#6
scootnwinn Join Date: Aug 2011 Location: Tierra Azul, NM Posts: 739	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... __________________ Do not fear mistakes. You will know failure. Continue to reach out. - Benjamin Franklin Join the HARDCORE 1983 Honda GL650I SilverWing
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03-15-2013, 08:14 PM	#2
Admin Join Date: Apr 2011 Location: NY Posts: 990	Needle valve sticking?
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03-16-2013, 01:04 PM	#7
99owned Join Date: Aug 2012 Posts: 51	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. :/
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03-16-2013, 01:51 PM	#8
Admin Join Date: Apr 2011 Location: NY Posts: 990	If the floats aren't sticking, I'd say it has to be the needle valve. Did you try tapping on the bowl when this happens?
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03-16-2013, 04:05 PM	#9
99owned Join Date: Aug 2012 Posts: 51	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.
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03-16-2013, 07:16 PM	#10
Admin Join Date: Apr 2011 Location: NY Posts: 990	So what was causing it to overflow?
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03-16-2013, 07:45 PM	#11
99owned Join Date: Aug 2012 Posts: 51	Don't know... I sprayed what little bit of carb cleaner i had left in the float needle chamber and stopped. O.o....
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