2007-2011 Polaris IQ Snowmobiles Service Manual, Page 466Get this manual
Battery and Electrical Systems Ignition Timing Chart
Convert the ignition timing specification from degrees BTDC to either inches or millimeters, then use dial indicator to verify timing marksEC55PM120 RODSTROKE (mm) Degrees BTDC 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
120mm ROD 65mm STROKE
NOTE: Always disconnect the TPS on carbureted engines prior to checking ignition timing
600 CFICARB128mm ROD 64mm STROKE
128mm ROD 68mm STROKE
132mm ROD 70mm STROKE
0.0063 0.0252 0.0566 0.1006 0.1571 0.2261 0.3076 0.4016 0.5079 0.6265 0.7575 0.9006 1.0559 1.2232 1.4026 1.5938 1.7969 2.0117 2.2380 2.4759 2.7252 2.9857 3.2574 3.5401 3.8336 4.1379 4.4528 4.7782 5.1138 5.4595 5.8152 6.1807 6.5559 6.9405 7.3343 7.7372 8.1491 8.5696 8.9986 9.4360