Have a 2003 Polaris Vertical Escape 800 and the sled is leaking fuel at a startling rate. half tank gone in 24 hours. leak seems to be coming from somewhere between the tank and the fuel shut-off valve. drops are falling from the exhaust can side but i don't see the fuel pooling anywhere. what do i do to find the leak and stop it. have a three day ride planned starting friday and dont wanna waste time and fuel. thanks!