How to Take a Ski-Doo TRA 3 Clutch Apart

A snowmobile's transmission uses a primary and secondary clutch to adjust the drive speed at the rear track. The TRA 3 is the primary clutch used on Ski-Doo snowmobiles starting in 2003 up to the time of publication. This primary clutch is designed for use with a 1.5-inch drive belt and has a 12- to 14-degree sheave angle. The TRA 3's strength is its reduced moment of starting inertia, resulting in a snappier throttle response and faster acceleration.

Things You'll Need

  • Screw puller
  • Clutch spring compressor
  • Hex key set
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Instructions

    • 1

      Place the clutch on a workbench with its engine side down. Install the screw puller 1/2 inch into the TRA 3's drive-shaft hole by turning it counterclockwise.

    • 2

      Position the drive shaft on the edge of the workbench so half of it is on the bench and the other half, including the drive-shaft hole, is hanging over the edge. Strike the top of the screw puller with a hammer to disengage the fixed half.

    • 3

      Lift the governor cup with your hands until the the slider shoes are at their highest point in the guides. Hold the slider shoes and lift the housing until the shoes can be pulled out. Repeat this step to remove each of the housing's shoes.

    • 4

      Screw the clutch spring compressor 1/2 inch into the drive-shaft hole on the engine side of the clutch. Slide the support guide down the clutch spring compressor, then screw on the nut and handle.

    • 5

      Tighten the nut by turning the handle clockwise until the the clutch's springs are compressed by the spring compressor.

    • 6

      Loosen the three hex-head screws with a hex head key and pull off the spring cover. Remove the clutch spring compressor by turning it counterclockwise.