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Old 08-27-2013, 12:04 PM
mbrooks360 mbrooks360 is offline
Motorized Bicycle Newbie
Join Date: Aug 2013
Location: newark ohio
Posts: 8
Default Re: Gas leaking out the air intake

Originally Posted by MotorBicycleRacing View Post
Your fuel bowl is over flowing because there is junk under the needle valve
that shuts off the gas flow into the bowl or the white plastic float is full of gas.

remove the 2 screws and take the bowl off, then shake the float to see if there is
any gas in it.
Then remove the pin that the arms lever from to remove the needle.
Blow the the passage and seat out with compressed air.

Do not scratch or damage the brass seat that the needle valve seals against.

Liquid gas does not flow into the motor down the intake tube.
Gas is sucked up through the jet past the needle and atomized being mixed
with air as it flows down the intake tube.

I also notice that you are using both springs behind the clutch arm.
The big spring is only a heat shield fot the clutch cable so it doesn't
touch the hot cylinder head.
The small spring should be removed too as the internal spring is more than
enough to return the arm.
You are making the clutch pull at the bars harder than it needs to be.
From what you described I think I damaged something one of the times I was putting the needle in.

I have a spare one to put on it for now and then I'll take apart the old one so I understand it better.
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