I haven't seen a bike with a custom map and block off plates backfire.Thanks for the input fellas! I am running a Bazazz z-fi unit w/ custom map, ivan's block offs, and BMC air filter.... I suppose I could just as the fellas in the shop at the dealership and see what they say.. :thumbsup: I'm not really worried about it, other than the fact that I don't want any engine damage (obviously). I actually like the sound!
Don't worry about damage. The popping/backfiring is unburnt fuel. Your probably running a little rich. Some tuners like to tune rich at high rpms to cool pistons a bit.
To avoid the "popping" on decel, when possible, just roll off the throttle slower.