How to drain my fuel tank Metro CHF50

[Nochain]

Thanks I ended up yanking the tank because to replace the filter you kinda have to do this anyway. So I pulled the tank, cleaned it out replaced the fuel filter and lines and cranked it a few times to expel the fuel in the line to the carb. I completely disassembled the carb and cleaned it out and replaced all the gaskets. Not very hard after working on a Yamaha 600CC quad carb racing set up lol. With the mods I made to the variator I now can make 45MPH and I am 175lbs. She scoots really well.