Video answer: Motorcycle & atv gas cap vent hose
Top best answers to the question «How do i know if my motorcycle gas cap is vented»
All modern gas caps are vented is some form. Look at the bottom that faces the gas and you can see the valve inside. Old caps back in the day were not vented and where simply a twist lock solid cap. You could in theory use a non vented on a car because they actually have a filler neck.
Video answer: Venting a road star gas cap