Been runnin my 2000 WR 400 fith the Q 2 forever. Did the jetting when it went on. Now I put the power bomb on an its poping on deceleration Piolet jet? Go up from the 42 in it now? Side note from all that is I can tell its quieter: There is also Way more room to that damm oilfilter cover:applause: But know the jetting stuff:cry: What do ya think?