Road Star Warrior Forum : Yamaha Star Warrior Forums - View Single Post - Do I Need This??
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Old 11-23-2010, 01:51 AM   #3 (permalink)
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Default Re: Do I Need This??

I think it is there for when you fill your tank full on a hot day, and the heat causes the gas to expand. It lets the gas out when it expands. (insert fart joke here)

My guess.
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