So I just picked up a 1999 yz400 and love the bike, once you learn the starting procedure it's cake. Anyways there are people near me that are parting out 2002 yz250f bikes and I want a smaller gas tank. I have a 3.4 gallon Clark tank which is nice for when i go trail riding but I had to shave the seat down and that makes the gas tank look bigger. When i go trail riding I usually only go about 6 miles at a time, maybe more. Are these bikes really thirsty? I'm a pretty middle paced rider, nothing aggressive, no rev limiter, etc. so I think as long as I filled up before I left the stock tank would do me good. Or should I just stick with the Clark tank. Thanks!