Content Source: 2020 PRO-RMK / RMK ASSAULT / SKS 155 Owner’s Manual (9929772 R02) > Operation Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

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Track Warm-Up

WARNING
A loose track or flying debris could cause serious injury or death. Stand clear of the front of the snowmobile and the moving track. Never hold the snowmobile up or stand behind it while warming up the track. Do not use excessive throttle during warm-up or when the track is free-hanging. Use a stable rear support.
WARNING
Use of traction products such as studs, ice growsers, etc. will increase the possibility of track damage and/or failure. This could cause loss of control, resulting in serious injury or death. Always inspect for track damage before operating the snowmobile.
Follow these steps to ensure proper warm-up of the engine, drive train and track.
  1. Use an appropriate stand to securely support the rear of the snowmobile at the rear bumper. The track should be about 4 inches (10 cm) off the ground.
  2. Start the engine and allow it to warm up two to three minutes.
  3. Depress the throttle abruptly and allow the track to rotate several revolutions.
    TIP
    It will take longer to warm up the track sufficiently during colder outdoor temperatures.
  4. Release the throttle, apply the brakes, shut off the engine and lower the snowmobile to the ground.
  5. Grasp the skis by their front loops and move them from side to side to loosen snow and ice.

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