Arctic Cat 2013 Prowler XT, Руководство по обслуживанию

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2-4
2. Replace any one-way drain that is cracked or shows
any signs of hardening or deterioration.
3. Wipe any accumulation of oil or gas from the filter
housing and one-way drains.
Valve/Tappet Clearance
To check and adjust valve/tappet clearance, use the fol-
lowing procedure.

NOTE: The engine must be cold for this procedure.

NOTE: The seats, center console, spark plug, and
air filter housing must be removed for this procedure.
1. Remove the spark plugs and timing inspection plug;
then remove the tappet covers (see Section 3 - Servicing
Top-Side Components).

NOTE: On the XTZ, remove the crankshaft end cap
and install the special cap screw (left-hand threads)
to rotate the engine.
2. Rotate the crankshaft to the TDC position on the
compression stroke (front cylinder on the XTZ).
GZ063

NOTE: At this point, the rocker arms and adjuster
screws must not have pressure on them.
Feeler Gauge Procedure
A. Using a feeler gauge, check each valve/tappet clear-
ance. If clearance is not within specifications, loosen
the jam nut and rotate the tappet adjuster screw until
the clearance is within specifications. Tighten each
jam nut securely after completing the adjustment.
CC007DC
B. On the XTZ, rotate the engine 270° to the TDC posi-
tion of the rear cylinder; then repeat step A. The
stamped “R” must be visible.
GZ059
Valve Adjuster Procedure
A. Place the Valve Clearance Adjuster onto the jam
nut securing the tappet adjuster screw; then rotate
the valve adjuster dial clockwise until the end is
seated in the tappet adjuster screw.
B. While holding the valve adjuster dial in place, use
the valve adjuster handle and loosen the jam nut;
then rotate the tappet adjuster screw clockwise
until friction is felt.
C. Align the valve adjuster handle with one of the
marks on the valve adjuster dial.
D. While holding the valve adjuster handle in place,
rotate the valve adjuster dial counterclockwise
until proper valve/tappet clearance is attained.

NOTE: Refer to the appropriate specifications in
Feeler Gauge Procedure sub-section for the proper
valve/tappet clearance.

NOTE: Rotating the valve adjuster dial counter-
clockwise will open the valve/tappet clearance by
0.05 mm (0.002 in.) per mark.
E. While holding the adjuster dial at the proper
clearance setting, tighten the jam nut securely
with the valve adjuster handle.
CAUTION
The one-way drain to the left is the clean air section of
the filter housing. Any leak of this drain will allow dirt
into the engine intake causing severe engine damage.
CAUTION
The feeler gauge must be positioned at the same angle
as the valve and valve adjuster for an accurate measure-
ment of clearance. Failure to measure the valve clear-
ance accurately could cause valve component damage.
VALVE/TAPPET CLEARANCE
Intake 0.1016 mm (0.004 in.)
Exhaust 0.1524 mm (0.006 in.)