Another question for you BRP gurus. I just installed a White Bros E series silencer and want to know what jetting I should be running. I'm getting alot of popping on decel and a very slight hesitation when I WFO the throttle... Fully uncorked 2000 XR650R, WB silencer w/12 discs and spark arestor, Aftermarket air filter, at aprox sea level. (stock header) I'm running a 65 and a 172 jet with the clip on the 2nd possition on the needle and 3 3/4 turns on the PMS screw. Thanks guys!