Alright i have the full hmf pipe and runnin with no lid. Before i had my pipe my jetting specs were 165 mj, 45p. Now everytime i gun my throttle it bogs down and a spark shot out of my pipe. PLEASE TELL ME WHAT MY JETTING SPECS SHOULD BE!.....also i live in maine and im about 550ft from sea level......ohh yah and u tel me where the mixture screw is>??