Yea you need the high RPMs for the pipe. I have 4.5g rollers in my Zuma, that's what came with my pipe. I also put in stiffer clutch springs and torque spring. (Both Malossi Yellow)
When you try the pipe adjust the AF screw a bit richer just in case. I don't think you'll have to adjust much if you're only adding the pipe, maybe move the needle 1 notch richer. The big change will be if you go to a 70cc kit. Either way keep a close eye on your plug color and don't ride it too long at WOT until you know your jetting is ok.
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2005 Yamaha BWS (Zuma) "Garfield"
TP Black Trophy 70cc, Giannelli Reverse Pipe, 5g Dr. Pulley Sliders, Delta Clutch with Yellow Springs and Yellow Contra, Malossi Torque Controller, Naraku R-Vent Bell, NCY Adjustable Secondary Sliding Sheave, CF Reeds, Kege Analog Tach, Dual Headlight Mod, N.A. Rear Fender Delete, OEM Short Windshield.
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