here is where I Finally figured out to run 370 main jets and it has been flawless since.
Jets:
50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 540 560 580 600 620 640 650 660 680 700 710 720
Stock main jet will be 500 or 510
Jetting Chart per ski-doo race manual
Jets:
50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 540 560 580 600 620 640 650 660 680 700 710 720
Stock main jet will be 500 or 510
Jetting Chart per ski-doo race manual
