Hi fellas !! Been of the forum for a couple of weeks (busy at work, wife's pregant - 10 days to go). Seems the jetting story has been getting longer while I've been away. You may remember the problems I was having: EKN needle #4 MJ #170 PJ #48 PAJ #100 1 turn on pilot screw. - starts OK, good tickover - 1/8 to 1/4 missing & banging - 1/4 to 1/2 struggling to pick-up - full throttle pretty strong Anyway, today I went to: EKN needle #3 MJ #175 PJ #48 PAJ #100 1.25 turn on pilot screw Generally pretty pleased. So much better than before. Only problem is at speed in 5th/6th gear, it really can't pick-up well. It wont get anywhere near the rev limiter!! Do I need to come down a lttle on the MJ (172)? Or is this perhaps something elese. Oh yeah, its a 99, YZ timed, no airbox lid.