Suzuki has done better on their other bikes with this same system. I checked the TB sync and it's ok. This thing just runs lean below 3500 rpm. The dealer wants $115 to just check it and I know he isn't going to richen it up. Suzuki needs to come up with a better map and offer it as a free upgrade. Other than the FI and the windshield (and of course no centerstand) I really like this bike. 2005 DL1000.