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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.

Click the link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com.

Measuring Drive Chain Tension

To measure drive chain tension before riding:

  1. Position your snow bike on an flat and even surface. Do not place a wheel kit under the bike. Remove all snow and debris.

  1. Position a ruler behind or in front of the top chord of the drive chain, halfway between the counter shaft sprocket and the jack shaft sprocket (this is where drive chain displacement should be measured) 1. Steady the ruler so it does not move as chain displacement is measured.

  2. Choose a single chain link pin close to the ruler to use as a reference point for measuring chain displacement. Push down on the top chord of the chain with one finger and line up the 1 inch mark on the ruler with the chosen chain pin 2.

  3. Then, without moving the ruler, push up on the top chord of the chain with one finger in the same location and add up each eighth inch mark between the 1 inch mark and the new position of the chosen chain pin 3.

    If the chain is properly tensioned, there should be between 0.75 in. and 1.250 in. between the 1 inch mark (the position of the chosen chain pin when pressed down) and the current position of the chosen chain pin (when pressed up). This is the drive chain’s displacement measurement. If the drive chain’s displacement measurement is less or more than 0.75 in. and 1.25 in. the chain needs to be adjusted (see Adjusting Drive Chain Tension).

Parent topic: Drive Chain Tension