How do you drain fuel tank 2004 Yamaha XLT 800 Waverunner?

Disconnect the input side of the "fuel water separator" (Fuel filter) take that hose and connect it to another long 1/4 inch hose with a primer bulb on the other end. Get the primer bulb lower than the gas tank of the jetski and start the flow by squeezing the bulb. Make sure you have the jetski gas selector in the "RES" position to get as much out as possible. Once it starts flowing gravity should do the rest. It's not fast but it works.