HOGIE Posted December 15, 2004 I Just Added An Fmf Factory4 Slip-on And Removed The Air Filter Screen. Should I Have To Rejet? With The Pipe Added, It Ran Super Crisp, But With Added Flow(no A/fltr Screen) Seems A Bit On The Lean Side. Share this post Link to post Share on other sites
skip #7 Posted December 16, 2004 I just put on the white bros aluminum pro,had to re jet with the JD jet kit,I had 175 main and 42 pilot went to 180 main,45 pilot,1 1/2 turns out checked the plug tonight after motoing sat and sunday still had a little on the light side for me,will go up a couple sizes. Share this post Link to post Share on other sites
1dustries Posted December 16, 2004 Check the plug. Dark=rich, light=lean, Tan=PURRRRRFECT Share this post Link to post Share on other sites