Raptor jetting for stock pipe w/K&N filter.
#2
Raptor jetting for stock pipe w/K&N filter.
Try going with a 145 LM 150 RM, with the lid off you could probably also try 150/155. I wouldn't suggest going higher without at least a slip on. I hear the GYT-R exhaust works quite well, but it is pricey. If you buy a jet kit from Yamaha it gives you a few different options and suggestions for jetting with what setups.
#3
Raptor jetting for stock pipe w/K&N filter.
You might also want to change out the needle and spring that youget if you buy the jet kit. It also depends on where people live. I am sure mine would be different then somone who lives in texas....so ask your local dealership or someof your buddies in your area!
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