i have a 2005 raptor 660 with an aftermarket pipe. i was wondering what should the jets specifactions be? the service manual says main carb 1#140 and main carb 2 #145. should i just stick with the what the service manual says?
146L/148R DG mains (which is what it sounds like you have) are intended to be used with a full aftermarket exhaust system including headers and muffler (not just a slip on muffler with stock headers) with the airbox opened up or the lid removed. Are these the mods you have?