I have read that there is something you can modify with the carbs to rid the popping problem. I just can't get used to it. I have adjusted the air mix 3 turns and still I get it. It seems to pop more when warmed up. Also when i decell it's always there. I had pipes installed when i purched the bike, it does sound better with them. My service is coming up and i will inquire about the popping. Thanks guys as always