I filled the gas tank today and when I got home, I turned the petcock off and noticed that a small leak started to develop form the bottom part of the valve. I haven't closed it in over 2 years. When I turn it on it stops leaking. Any suggestions??? Any body knows the part number of the fuel valve?

 

Just get a new valve.I did away with the vacuum operated one and got a Pingel.Cap it off at the t connector where the vacuum hose plugged in.By habit,I've always turned the valve off when the bike is off.

 

The part number for the stock valve is 62169-02a and the retaining nut is 62161-02. I think both parts were less than $30 when I bough them this spring

 

Exactly what I did better fuel flow as well .. Just don't forget to shut it off when not riding ..

 

Mignt try jusy changing the rubber gasket.

 

The leak went away. It was overfull.