How do I get the air out of my fuel line? By mxmatt (Read 487 times)

[mxmatt]

So last night I got my scooter up and running.  It sounded great, but all of a sudden it just stopped.  I was able to get it back on this morning, but then it just stopped again.  I am wondering if a considerable sized air bubble in the fuel line would cause this to happen.  Anyone?

[Alleyoop]

Check you fuel filter and see if it is full or hardly full. Also if you have to big of a fuel filter that also makes it difficult to deliver fuel to the carb.

Take the fuel hose off the carb and put it in a container and crank the motor fuel should stream out.
Alleyoop

[Bashan]

Yeah Matt, it could. Are you running clear line so you can see the gas? I used to get that from Bike Bandit so I could see what the fuel was doing. If I didn't run the line correctly it would get an air bubble trapped and shut the fuel off. You can't have loops or high spots with a gravity feed, it can stop the flow. It's best to have one downward slope from tank to carb with the fuel line. The clear line was also helpful when I diagnosed a diaphragm leak at the ACV valve. I could see gas bubbling down towards the intake manifold. Without the clear line I don't think I would ever have caught that. Rich

[jvino]

Matt alley and basham are right on it glad to hear you got your scooter back running. I to would think it's possible a air bubble got in your fuel line. I believe they both gave you very good advice.