2008 Polaris Sportsman 700/800/700 X2 EFI Service Manual, Page 216Get this manual
FINAL DRIVE Front Gearcase Diagnosis
Symptom: AWD Will Not Engage
Check the gearcase coil resistanceTo test the gearcase coil resistance, use the coil harness (GreyBrown White)
NOTE: To test the gearcase coil resistance, use the AWD coil harnessThe gearcase coil should measure between 22.8 ohms and 25.2 ohms
Inspect the armature plate for consistent wear patternThere should be two distinct wear bands (one band inside the other)If only one band of wear is present (or if there is wear between the two bands, inspect the coil area as indicated in Step 4A band with an interrupted wear mark may indicate warped plate, which may cause intermittent operation
Armature Plate
Check for Wear Bands