Ok bike gurus. I got a question for you guys. I just took my bike in for full servicing at a Kawi dealership. This included new cam chain tensionor, valve adjustment, and carb tuning. A previous owner had put on the 2-1 Yoshi exhaust and jetted the carbs and it has run like a champ for the 11k miles I've had it with no popping. Tonight however after getting it back from them I get the popping from decelerating from the higher revs. My question is: what the hell did they mess up in my carbs and how can I fix it?