2007-2008 Polaris IQ Snowmobiles Service Manual, Page 104Get this manual
Fuel Systems Exhaust Temperature Sensor Crankshaft Position Sensors (CPS)
The tooth crank position sensor picks up all flywheel teethThe tooth crank position sensor picks up flywheel teethBoth crank position sensors will have gap to the flywheel pick up of 0.031" (0.8mm)
Sensor Specifications
Resistance Values 2.3M 392_F (200_C)76 1652_F (900_C)
These sensors must be in the correct position or the engine will not run as expectedA sheared flywheel key will cause the engine to not start or kill if runningThe tooth pick up detects the crank angle and obtains minimal information of the crank angle when control enters into limp home mode5 tooth pickup is to obtain the following information in combination with the tooth pickup Judge direction of rotation (forward and backward) Ignition advance angle control Injector drive angle control Excess advance ignition control at reverse MAGPTO cylinder detection