metal tanks?

[tuckerboy]

I have a chance to buy two 6 gallon portable metal Yamaha gas tanks. My question is there does not seem to be a vent on the tanks like there is on the cap of the plastic tanks. Should there be a vent? According to the seller they work fine, but I am puzzled by the vent thing. I forgot to open the vent on my plastic tank and it collapsed the bulb on the primer. Any comments? Tanks look fine otherwise.

[99yam40]

not sure about Yamaha metal tanks but the johnierude tanks I had the vent was in the connector, vented tank when connector was hooked up to tank

[tuckerboy]

Thanks for the reply, I looked these over and cant see any way they would be vented except by cracking the cap. They seal really tight because when I open them the air rushes in.

[boats.net]

The vent is by fuel connector but tank will still retain some pressure, may be able to buy an aftermarket vented gas cap that will fit.

[tuckerboy]

So I wont need to crack the cap a bit?

[boats.net]

No shouldn't have to.

[tuckerboy]

many thanks