bluej58 wrote: My bike looses the gas in the bowls after about a week so when I get ready to ride I have to prime the carbs.
being in Virginia you have easy Winters I'd guess so maybe you could drill a couple of holes low in the big door and 2 high on a opposing wall and install something like these and have cross ventilation like someone suggested.
www.amazon.com/Maurice-Franklin-Round-Pl...c-Vent/dp/B01DH9B2C0
I don't think it's a good idea to let gas fumes get into a hot attic,or cold one for that matter
So the other complicating factor is that my other hobby is playing in loud rock bands. I'd like to be able to play in the garage and not piss off my wife or neighbors. Unfortunately if air can go through those kind of vents, sound will too.
A few days ago I ordered a petcock o-ring as I noticed a little "weep" around the petcock lever. Again, really minor, but there. It arrived and I installed it yesterday. The only thing I'm still waiting on are replacement float bowl drain screws. But I'm not seeing any weeping around them.
If all that doesn't get the fumes under control I'll have to install some sort of venting. The space above the garage is vented. There's a ridge vent all along the length of the garage and soffit vents down each side. When I installed the insulation I used those plastic inserts that help make sure the soffit vents don't get obstructed. So I don't think that fumes would stay in the attic space. I think that's how they were getting out before. But I am hesitant and very much on the fence about passive venting to the attic.
I've seen a few people wall/surface mount a bathroom exhaust fan and use some flexible ducting to vent through an exterior wall. If you put a few bends in the flex duct and seal the exit really well, less sound will escape, though still quite a bit. Plus those will only pull air out when turned on.
Letting fumes build up in the garage isn't any better than letting them vent through the roof.
I know what I SHOULD do is put in a vent pipe like a plumbing vent stack that goes out through the roof. But that's complicated and expensive. But I know it's what I should do.
For now I'm crossing my fingers that I can minimize the source of the fumes to the point that it's safe and tolerable.