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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.

Bleeding the Hydraulic Brake System

Air in the hydraulic brake system will cause spongy brake lever action. Bleed the system before operating the snowmobile.

WARNING

Operating the vehicle with a spongy brake lever can result in loss of brakes, which could cause an accident and lead to serious injury or death. Never operate the vehicle with a spongy-feeling brake lever.

CAUTION

Hot exhaust system parts can cause burns. Allow adequate time for the exhaust system to cool. Never perform this procedure with the engine running.

During the bleeding procedure, keep the brake handle as level as possible. The reservoir must be in this position to minimize the possibility of air entering the system through the reservoir vent.

  1. Remove the brake master cylinder reservoir cover and gasket.

  2. Fill the master cylinder reservoir to 1/4-5/16 inch (.6-.8 cm) below the lip of the reservoir opening. Reinstall the gasket and cover.

  3. Slip a rubber tube over the ball of the bleeder valve and direct the flow of fluid into an approved container.

  4. Squeeze the brake lever a full stroke. Then unscrew the bleeder valve 3/4 of a turn to release air.

  5. Close the bleeder valve and release the brake lever.

  6. Repeat steps 4–5 until fluid flows from the bleeder valve in a solid stream free of air bubbles.

    WARNING

    Overfilling the master cylinder leaves no room for fluid expansion and may cause the brakes to lock, resulting in serious injury or death. Always add brake fluid to the fill line as recommended.

  7. After bleeding is complete, refill the reservoir to the proper level. See Brake Fluid.

  8. Reinstall the gasket and cover.

Parent topic: Brakes