Polaris 120 XC SP - Manual (Page 55)

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OPERATION
Pre-ride Warm-Up
The following steps must be taken to ensure proper warm-up of the
engine, drive train and track.
With the snowmobile securely supported by the rear bumper, and with
a minimum clearance of 4″ (10 cm) from the ground, use the following
procedure.
1. Start the engine and allow it to warm up two to three minutes.
2. Engage the drive system abruptly and allow it to rotate the track
several revolutions. NOTE: The outside temperature will
determine the amount of track warm-up required.
3. Shut off the engine and remove the rear support.
4. Grasp the skis by their front loops and move from side to side.
This will loosen frozen snow from the ski bottoms, allowing the
machine to move forward more easily.
5. The engine, drive system and track are now properly warmed up
and the machine can be driven following normal safety practices.
NOTE: It is up to you, the parent, to teach your child the proper and safe
way to ride a snowmobile. You must set boundaries and adhere to them,
keeping your child’s safety foremost in your mind. Never allow your child
to operate this machine without adult supervision.
Be sure the rear support is stable. Stand clear of the front of the
machine and the moving track. Never hold the snowmobile up or
stand behind it while performing this procedure. Do not use too
much throttle during warm up or when track is free-hanging. A
loose track or flying debris could cause serious personal injury or
death.
WARNING