Why is fuel tank pressurizing?

[barncat]

Went riding with a buddy yesterday and he noticed fuel coming out of his vent hose.
When he removed the hose, the venting slowed, but the second the hose was on, he pressurized.
The hose was unobstructed, and the cap appeared to be as well. He is a 396 stroker, with K&N air filter.

Told him I'd check here, see what you guys think.

 

[beastlywarrior228]

is it one of those cheap short ones. i had one and it pressurized my tank and was causing the float to stick. i put it on my banshee and it did the same thing

 

[barncat]

It was about 12" long.

 

[beastlywarrior228]

so its just the hose and no vent

 

[duneracerweston]

Id try getting a different hose/vent or try running without the hose

 

[elwood]

swap caps with him and see if it still does it

 

[barncat]

Yeah was going to do that, but ran out of daylight.

I figured it's the cap not letting air into the tank to equalize the pressures.

 

[W T HECK?]

ran outta daylight? .....just hold up a lighter to it!..... you'll have plenty of light to see by!! :haha:

 

[duneracerweston]

ran outta daylight? .....just hold up a lighter to it!..... you'll have plenty of light to see by!! :haha:

Uh you first