Is your Yamaha Big Bear 350 (YFM350) having fuel flow problems? A faulty petcock (fuel tank valve) is a common culprit. This is a complete replacement petcock assembly from gardenrepairexperts. It includes the valve itself, a mounting plate/gasket, and a braided fuel line. It should have the standard settings: ON, OFF, and RES (reserve). When the petcock leaks, won't flow fuel, or is stuck, replacing the whole unit is the easiest fix. Installation is straightforward – drain the tank, disconnect the old fuel line, unbolt the old petcock, and bolt this new one on with the included gasket. Gets your ATV's fuel system working reliably again. It comes with a manufacturer's warranty. A must-have repair part for any Big Bear owner dealing with fuel delivery issues or preparing an old quad for the season. Stop pushing and start riding!