Just a newb on here!
Join Date: Dec 2004
Location: Albuquerque, NM
I'm having the exact same problem with my '07 R1. Just under 31k miles, I started it the other day and:
1) Sounds like a Ducati or V-Twin (louder, deeper sounding)
2) Strong smell of gasoline. I'm guessing it's because a cylinder isn't firing, just dumping fuel in and overflowing into the exhaust.
3) Rough idle, boggy and slow on the throttle.
4) Backfires a lot when decelerating with throttle closed (I only rode it once around the block once the trouble started, haven't ridden it since).
I pulled the coils and had them tested at the local Yamaha dealer. All tested ok, but the #2 coil had a small hole burned through the side of it, indicating that it's arcing. When I pulled the spark plugs, the #2 spark plug was coated with black liquid- either oil (hope not) or residual gasoline built up from not firing. I replaced the spark plugs and the problem was the same. I'll order a new coil and see if that solves it, then reply here.