Arctic Cat ZR 120 Service Manual download pdf (Page 38)

Drive Chain and

Sprockets

REMOVING

1. Remove the self-tapping screws securing the front

clutch shield and rear sprocket cover; then remove

from the engine compartment. Note the position of

the hood cable.



NOTE: It will be necessary to reinstall the hood cable

once the guard is removed.

2. Remove the muffler hold-down spring from the

muffler and support bracket; then remove the two

nuts securing the muffler to the engine.

IO111A

3. Press down on the muffler and pull it to the side

until the muffler flange clears the engine exhaust

studs; then remove the muffler from the engine

compartment. Account for the exhaust gasket.

4. Compress and hold the brake lever; then remove

the cap screw and washer securing the chain

sprocket to the driveshaft. Release the lever.

IO118A

5. Remove the retaining ring (A) securing the brake

band. Account for a washer; then loosen the rear

brake cable adjustment jam nut (B) and slide the

cable out of the brake bracket. Set the band assem-

bly aside.

IO112A

6. Secure the centrifugal clutch with a pair of chan-

nel-lock pliers at the outer clutch collar; then

remove the cap screw securing the clutch. Account

for a lock washer, washer, and a spacer.

A020

IO113

7. Slide the chain sprocket and clutch (with the drive

chain) off the respective shafts and remove from

the engine compartment. Account for the rear

driveshaft key.

CLEANING AND INSPECTING

1. Thoroughly wash all metallic components in parts-

cleaning solvent. Dry using compressed air.

2. Wash all non-metallic components with soap and

water.

3. Inspect the sprocket driveshaft for damage or for

stripped threads.

4. Inspect the keyways in the driveshaft, chain

sprocket, and clutch for wear or damage.

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Arctic Cat ZR 120 Service Manual Page 38

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