I have a 2003 raptor 660r. The first time i rode it it ran like a champ, after i got it home it started sputtering and backfiring. I cleaned the jets and carbs. It idles just fine, but when i give it throttle is when it backfires and sputters. Does anyone have any ideas what might be the problem?
Fantastic 2005 Yamaha Raptor 660R Special Edition... Only 1 Owner!
+6" Rear Axcalibar Racing Axle (Lifetime Warranty)
Upgraded Rear Wheel Hubs
Six Pack Rack with Flag
K&N Air Filter
Maxxis 6-Ply Tires
Flame Seat w/ Yellow Piping
This is a...