I just became the owner of a used 05 TRX250EX, when I got it I did my usual for all vehicles I come to own used, I gave a front to back motor/carb clean and changed all the fluids. I went to start the ATV via jumping it (Old battery was dead) an while i could get it to start on starter fluid it would roar up and die down real fast. I went to check the fuel line to make sure i had the tank in the ‘On’ position but even in ‘On’ it only barely dripped. At this point I am a bit confused on how to continue