air comeing back up fuel line

[perry]

ive just got a new preassembled skyhawk80 it starts and runs well till about 3 quarter 2 full throatel then small air bubbles start runing back up the fuel line then it stalls any ideas?

 

[Al.Fisherman]

ive just got a new preassembled skyhawk80 it starts and runs well till about 3 quarter 2 full throatel then small air bubbles start runing back up the fuel line then it stalls any ideas?

Make sure the fuel cap is vented. It needs to be, as the fuel is gravity fed.

 

[gokart25]

I've had to loosen my gas cap, while riding before..so it wouldn't cut out.
I've thought about drilling a small whole in the cap.

 

[5-7HEAVEN]

I also had to loosen the cap, when my Mitsubishi engine died after every mile.

Soon, the fuel grommets will shrink, and you won't have that problem.