Arctic Cat 660 cc Service Manual page 299

5. Compress and hold the brake lever; then install the
cap screw (coated with blue Loctite #243) and
washer securing the rear chain sprocket. Tighten
the cap screw securely; then release the lever.
6. Place the exhaust gasket into position on the
engine exhaust studs.
7. Place the muffler into position in the engine com-
partment; then press down on the muffler and
swing the intake pipe onto the engine exhaust
studs. Secure with two nuts and the hold-down
spring.
8. Place the front and rear chain guards into position
making sure the hood cable is properly positioned.
Tighten securely.
Drive Chain, Track,
and Driveshaft
NOTE: The skid frame must be removed for this
procedure (see Removing Skid Frame in this sub-
section).
REMOVING
1. Remove the five machine screws securing the rear
chain guard; then remove the guard.
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9-26
A005
A017A
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2. Compress and hold the brake lever; then remove
the cap screw securing the rear chain sprocket to
the driveshaft. Release the lever.
3. Slide the chain sprocket off the driveshaft and set
aside. Account for the key.
4. Remove the four lock nuts securing the drive
sprocket bearings to the tunnel; then remove the
four carriage bolts from the tunnel.
5. Position the bearing flanges so they are directed
towards the rear; then spread the tunnel slightly
and slide the driveshaft assembly out of the tunnel.
6. Remove the cap screws securing the upper idler
wheel assembly to the tunnel; then remove the
assembly from the tunnel.
7. Remove the track from the tunnel.
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A021
A022
A013
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