Modern Buddy

Do I have to rejet the carb when I put the prima pipe on? I dont want to unless I have to.Will just the jetting and the pipe make a difference or do I have to go with the rollers and springs? Thank You,marty

I don't think a re-jetting is necessary (although I'm going to do it). Rollers are optional. According to Scooterworks they say go with 10g rollers, I like 8g better. It's all about the takeoff, not mpg for my riding style. I do think the contra spring is a good add to the pipe... although you need a 1 1/2" socket to do the job Feel free to check out some of the opinions on Rattler enhancement at Yahoo group "genuinerattler" a lot of us are here on MB and post Rattler specific stuff there.