Periodic maintenance and adjustment96To measure the drive sprocket wearMeasure the drive sprocket tooth width at themeasuring line shown. If the tooth width is 13mm (0.51 in) or less, replace the drive sprock-et.ESU12144Skis and ski runnersCheck the skis and ski runners for wear anddamage. Replace if necessary.NOTICEECS00560Avoid scratching the skis when loadingand unloading the snowmobile, whenriding in areas with little or no snow, or onsharp edges such as concrete, curbs, etc.This will wear or damage the skis.To align the skis1. Turn the handlebar so the skis facestraight ahead.2. Check the following for ski alignment: Skis are facing forward. Ski toe-out (distance A – distance B) iswithin specification.1. Drive sprocket tooth2. Measuring line3. Drive sprocket tooth width1. Ski runner wear limit1 2311. Ski wear limit2. Ski runnerSki runner wear limit:RS90P 6.0 mm (0.24 in)RS90PLT 6.0 mm (0.24 in)RST90 8.0 mm (0.31 in)RST90PGT 6.0 mm (0.24 in)Ski wear limit:RS90P 12.0 mm (0.47 in)RS90PLT 12.0 mm (0.47 in)RST90 24.0 mm (0.94 in)RST90PGT 12.0 mm (0.47 in)12