I need to rejet my 2003 660 raptor, what is the easiest way to get the jets changed and how do you do it?

 

Pull the carbs off, which will require the front fenders to be removed (I think). You don't have to comepletely remove them, just get them loose so you can get the bottom bowls off. Then pull the carb bowls off. Then just remove the jets and replace with the new ones. Then you have to replace the springs and set the needle position or some kits come with new needles. When I did the Curtis Sparks jet kit (Dynojet kit with pilot jets added) on mine, it came with step-by-step instructions. You could probably go to Dynojet's, Sparks Racing's or some other website and get detailed instructions.

Also keep in mind the left carb has a smaller main jet than the right, so don't let that mess you up. Even when you rejet, the left jet will still be smaller.