Fuel tank venting

[Talisman]

Basic question: does the "venting button" on my fuel tank (Mariner outboard) need to be open, or should it be closed for normal operation?

 

[Down South]

Re: Fuel tank venting

The fuel tank has to be vented to keep a vacuum from being formed in your fuel system.<br /><br />Good luck

 

[Talisman]

Re: Fuel tank venting

Thanks for the answer. You seem to be the one with all the answers ... see your name a lot. This is most helpful and if it doesn't solve the larger problem, I'll be back. Thanks again!