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View Full Version : Choke Plate/ Rev Box?



Wheelie
08-30-2001, 10:43 PM
I am looking to extract a few more ponies out of the ol' 400. Does the WB rev box/ XR250 rev box make much difference in power and throttle response?

Also is it worth the time to remove the choke plate? If so, will I have to rejet. I am currently running a K&N filter w/outerwear, WB E-Series slip-on, LARGE hole in my airbox lid, 40pj ,158mj, and the clip lowered one notch on the pilot needle.

Thanks for your help.

08-30-2001, 11:10 PM
you probly won't have to rejet for the plate cause you look good enough where your at and the xr250 box is the way to go