Fuel Line air locking

[LuckyPenny]

I am having a problem with my fuel line air locking above 4200RPM. I have replaced the bulb, dressed up and used new clamps on all connections. I run with an installed fuel tank. When it happens the bulb is almost flat.<br /><br />Any suggestions on what to check next?

 

[LuckyPenny]

Re: Fuel Line air locking

PS: I have a new fuel pump and all the fuel lines are new this year.

 

[flywoman]

Re: Fuel Line air locking

It sounds similar to a problem I had. What happens when it 'locks up"<br />Mic

 

[Mettaree]

Re: Fuel Line air locking

Sounds like you don't have adequate venting on your fuel tank since you say the bulb goes flat. Or possibly a bad check valve at the tank side of the bulb.<br /><br />Fair Skys, Smooth water