Does anyone know what this opening is for? It's located right above the petcock underneath the gas tank. I noticed just recently that if the bike jerks, a bit of gas comes right out of it. Is this normal?
LOL, would re-think the use of "orifice" in any post, might get a different kinda answer!
Anyways, That is a Vent tube for your gas tank, it "should" have a hose running down to the bottom of the bike where any, if any, gas can drain down to the ground. If the tank is overly full, it will let it drain there instead of out the fill neck all over your paint, and also helps vent vapors from inside the tank
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