Hello all . Finally got around to removing A.I. , what a difference! Smoother , stonger , starts easier , but most of all no more popping on decel! My BUBs were a little too loud for my taste , but without all the popping and farting , I like them just fine! It used to pop once in a while right at startup loud as a gun , embarrassing! Should have done this many miles ago . Thanks to all who posted info on this.