Main Jets [Archive] - Snowmobile World : Your #1 Snowmobile Forum

: Main Jets


500Indy
12-20-2003, 10:37 PM
wanting to drop a size or 2 main jets, stock is 280's, should I try 270's first or just go right to 260's. My old 500 fugi runs around 90 or 92 mph now, and i would like to see 95 or 96 and im hoping the change to the main jets will give me that, what do ya think, or any other suggestions. I dont really have much done to it, Blue primary, and 21/41 gears, and secondary spring is set in the forth setting i think, and a rebuild @ .20 over, and stock pipe.