This past weekend I rode with a couple of buddies with new two smokes. A 01 CR 250 and 00 RM 250. We rode Ocotillo Wells with lots of sand and rock. Both ran out of fuel in the first 45 minutes and I still had 2/3rds of a tank. They ran out again and I still have 1/2 tank! Four strokes rule! On the tighter, sandy up-hills, the WR's tractor power made life easily while they struggled with power on, off, on, off (you get the picture). After 4 hours, they were tired and I was just fine. I recently installed the IMS tank/seat and an FMF MegaMax pipe. I've fallen in love with my 99 WR again and couldn't be happier! 'Cuz four strokes rule and two smokes druel!