250F Desert tank for 2007 yamaha wr 250f

I like the IMS tanks too as they seem to be a little lower profile at the top of the tank. Either or is good though and Clarke cost a little less. One thing I do know is look at ebay as you can really save some money instead of going right to a web store. I think it's Tanks r us has good deals and is in Vista Ca and are on ebay. I got my 450 tank for 100.00 less from them on ebay and just went and picked it up.
That WR should get pretty good mileage with the tank that is on it and it has reserve.What size is it ? 2.5 or 2.8 with reserve. Good for 80-100 miles. If It's a 2.5 a 3.2 is not a hole heck of a lot more.

anyone know the optimum jet sizes????

I am looking to calibrate my milage on my 450wr. It has the stock pipe but with out all the smog gear. I put in the recomended jet set etc when I did that a few years ago (have the sizes written down) but my milage seems low! I usually only get about 45miles before going reserve. I think once I did about 6o mile and ran out. anyone know the optimum jet sizes??