My F2 has shut off couple times while riding. Then I'd pull over to the side of the road nd switch to reserve and it runs fine. Then when I go to fill up at the gas station, I fill up with $4. Out of all the times I had to fill up in the past few weeks, i don't think i rode more than 50 miles each time. Whats the problem?

 

Is there rust in the gas tank? I'm guessing your fuel filter is clogged.