I have read a number of threads talking about the gas mileage of different bikes, but beacause i am usually riding sub 3rd gear, how far a get means squat, and ride time is much more important. I find that on my kx250 i only get about 1.5 hours of ride time before i have to refill. Does that seem a little low? What can i do to increase ride time, i don't know much about jetting but im willing to try anything. Thanks for the help... . . (IMS tanks are pricey.. AHHHH).