Arctic Cat XC 450 2016, Service Manual

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FI608
23. Loosen the adjuster screw jam nuts; then loosen the
adjuster screws on the rocker arms in the valve
cover.
24. Apply a thin coat of Three Bond Sealant to the mat-
ing surface of the valve cover; then place the valve
cover into position. Note that the two alignment pins
are properly positioned.
 NOTE: At this point, the rocker arms and adjuster
screws must not have pressure on them.
25. Install the four top-side cap screws with rubber
washers; then install the remaining cap screws.
Tighten only until snug.
MD1261
26. In a crisscross pattern starting from the center and
working outward, tighten the cap screws (from step
25) to 8 ft-lb.
27. Adjust valve/tappet clearance (see Periodic Mainte-
nance/Tune-Up).
28. Place the two tappet covers with O-rings into posi-
tion; then install and tighten the cap screws to 8 ft-lb.
FI602
29. Install the spark plug and tighten securely; then
install the timing inspection plug.
Left-Side Components

NOTE: For efficiency, it is preferable to remove and
disassemble only those components which need to be
addressed and to service only those components. The
technician should use discretion and sound judgment.

NOTE: The engine/transmission does not have to be
removed from the frame for this procedure.
Removing Left-Side
Components
A. Water Pump
B. Speed Sensor
C. Magneto Cover/Stator Assembly
1. Remove the coolant hose connecting the water pump
to the cylinder; then remove the water pump cover.
FI538
2. Remove the water pump housing assembly noting
the location of the longer cap screw. Account for a
gasket and two alignment pins.
FI539

AT THIS POINT
To service any one specific component, only limited dis-
assembly of components may be necessary. Note the
AT THIS POINT information in each sub-section.