I just bought a 1999 Honda shadow 750 Ace Deluxe. The bike runs great except for the popping when i come off the gas. The bike has Hard Krome Kickers on it with the baffles in it, stock air intake and unsure if jetted. How can i stop it from popping. 2nd thing it is really loud, is there any thing i can do to quied it down without replacing the exhaust. really like the looks of them. Any help will be great.