2003 Polaris Scrambler 50-90 Sportsman 90 Predator 90 Service Manual, Page 97Get this manual

2003 Polaris Scrambler 50-90 Sportsman 90 Predator 90 Service Manual, Page 97

ELECTRICAL 3Remove brush plate and brushesMeasure length of brushes and replace if worn past the service limit4Measure the resistance between each commutator segment and the armature shaftThe reading should be infinite (no continuity)
Brush Length