Polaris 600 RUSH 2013 Owner's Manual For Maintenance And Safety page 105

MAINTENANCE
Clutch System
Drive Belt Condition
Periodically check the condition and tension of the drive belt. Inspect
the belt for signs of excessive wear: frayed edges, missing cogs, cracks
and excessive looseness. Replace the belt if any of these conditions
exist. See Drive Belt Troubleshooting on page 124.
Always carry a spare drive
belt. Store the spare belt in
the belt clip located under
the left side of the hood.
O-Ring
Make sure the o-ring is
installed over the belt clip.
For improved drive-away during extremely cold temperatures, remove
the belt and warm it to room temperature. Reinstall it before starting the
snowmobile.
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