Im sure this has been posted 15000000 times before but here it goes again. Bought an 02 raptor 660 this past summer and it crackles a little bit out of the pipe, now recently i made sure i watched when it did it, i only notice it on accel. Its only been ridden once since ive had it, since i bought it right before winter. I know its either too rich or too lean, on accel which is it?

And according to my local yamaha dealer, they claim legally they arnt saposed to jet carbs, sounds like bullsh*t to me, but if i figure it out, i have someone who can help me do it.

Basically, which is it, too lean or too rich?

Side: Only thing i know of thats aftermarket is the t-4 pipe.. and im pretty sure thats it.