I have a 99 yamaha beartracker 2X2. Could someone please help me figure out why it is leaking gas? The gas leaks from the drain line under the carburetor. I leaks very slow and is not the screw just above the drain line because I replaced that. Also, above the carburetor there is a petcock that says on, off and reserve. It doesn't matter what you put this on, gas still flows to the carburetor and out the drain line. Is there any way to clean this out without removing the whole assembly from the gas tank? There is no problem with the way the 4 wheeler runs and it always starts. But it does foul the plugs after about 3 months, so I know it is not good for it to leak like this. Thanks for any help.