I have a 2003 raptor 660r bored over to 686 and its popping at high rpms and I have to tune it mid ride is there any fix to this? I've been told to change the the jets but idk what size jets I need its bored to 686 with a full sparks racing exhaust. Any advice will help.
Jetting a 2003 raptor 660r
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04 raptor 660. 686 big bore with open airbox/k&n. Big guns slip on exhaust
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Popping could indicate either way. When is Popping? Just on decel? Open airbox? Elevation? I think we need more info
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Is airbox stock or opened up?
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