If I run a YZ pipe on a 2001 Canadian WR, (no throttle stop, grey wire, or airbox lid) what jetting changes should I make. 0-2000ft. Currently: mj=165 pj=42 needle=DRR Any input would be appreciated. P.S. Is the Canadian carb the same as the U.S. version? I know the stock settings are different. Thanx!