Fuel line question ?

[snowbalz]

Has anyone noticed an air bubble in there fuel line ? I am using a claer fuel line from tank to carb and after a few rides there is alot of air in the line. I can get it out by opening the carb drain but it comes right back. Im confused.

[mudder700]

Its normal,at least all 3 of our quads do it, nothing wrong, still has plenty of fuel..Its not an air tight system...

[dericsdad]

Could it be due to a carb vent/hose issue?? Plugged vent hose on the tank or fuel cap? I don't have clear lines, but a clear filter, and as long as the lines are kept level, or at an even down slope, the filter never gets any air in it. But we have connected both fuel lines from the tank together with a T near the tank, and have eliminated the stock restrictive fuel valve with a 1/4" ball type fuel valve, and used 1/4" id hose.

Dan