Yamaha xvs 1100 Dragstar
When I ride on the highway in approx 110 kilometers/hour (km/h), and give my bike more gas quickly when driving by another vehicle, it hesitates for a fraction of a second. The carbs are synchronized. And when the bike is warm, it "backfires" when driving slow and backfires more when decreasing the throttle. My bike is a xvs 1100 dragstar (V-star) -99. Sorry for my poor English but I hope you guys understand my problem anyhow.