Fresh air injected into the exhaust system on modified sport bikes can cause backfires in the head pipes and muffler due to unburned fuel from modified fuel mapping combined with addition oxygen spontaneously combusting in a high heat environment. We have a solution for you
Includes: 2 block off plates A cap for the airbox Detailed instructions
After spending 1.5 hrs just to get access to the plates on the bike, i reread the directions and was concerned about the note which stated that if the second air pump was not connected the F1 light would remain on. I have no idea what that meant, so I decided that I would not make the swap at this time, until I got further information. I did replace the spark plugs at this time, so all was not wasted.