Drive Belt Storage
Never leave the drive belt installed in the clutches as oxidation may form where the belt contacts the aluminum clutch sheave faces.
To clean the drive and driven clutches, do the following:
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Remove the primary and spare drive belt from the snowmobile.
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Inspect the drive belt for wear and glazing. Compare the primary belt with the spare belt. Decide if a new belt is needed next season and note the primary belt can now be used as the spare belt next season.
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Clean the drive and driven clutch sheaves with Isopropyl Alcohol. Allow the alcohol to air dry. Continue cleaning the sheave faces until all belt residue is removed.