Valve/Tappet Clearance - Arctic Cat 2014 450 Service Manual

CAUTION
Failure to properly seat and align the filter element may
cause severe engine damage.
8. Install the air filter housing cover and secure with the
locking tabs.
CHECKING AND CLEANING DRAIN
1. Inspect the drain on the filter housing cover and
clean out any dirt or debris.
2. Replace any 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 drain.

Valve/Tappet Clearance

To check and adjust valve/tappet clearance, use the fol-
lowing procedure.
 NOTE: The seat, left-side and right-side engine cov-
ers, and gas tank must be removed for this proce-
dure.
1. Remove the timing inspection plug and spark plug;
then remove the valve inspection covers (for more
KC147
detailed information, see Engine/Transmission - Ser-
vicing Top-Side Components).
2. Rotate the crankshaft to the TDC position on the
compression stroke.
 NOTE: At this point, the rocker arms and adjuster
screws must not have pressure on them.
KC123
Feeler Gauge Procedure
Using a feeler gauge, check each valve/tappet clearance.
If clearance is not within specifications, loosen the jam
nut and rotate the tappet adjuster screw until the clear-
ance is within specifications. Tighten each jam nut
securely after completing the adjustment.
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.
Intake
Exhaust
KC0056C
CAUTION
VALVE/TAPPET CLEARANCE
0.076-0.127 mm (0.003-0.005 in.)
0.152-0.203 mm (0.006-0.008 in.)
CF005
9