3-12
Servicing Top-Side
Components
NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.
VALVE ASSEMBLY
When servicing valve assembly, inspect valve seats,
valve stems, valve faces, and valve stem ends for pits,
burn marks, or other signs of abnormal wear.
NOTE: Whenever a valve is out of tolerance, it
must be replaced.
Cleaning/Inspecting Cylinder Head
Cover
NOTE: If the cover cannot be trued, the cylinder
head assembly must be replaced.
1. Wash the cover in parts-cleaning solvent.
2. Place the cover on the Surface Plate covered with
#400 grit wet-or-dry sandpaper. Using light pres-
sure, move the cover in a figure eight motion.
Inspect the sealing surface for any indication of
high spots. A high spot can be noted by a bright
metallic finish. Correct any high spots before
assembly by continuing to move the cover in a fig-
ure eight motion until a uniform bright metallic
finish is attained.
CC130D
Removing Valves
NOTE: Keep all valves and valve components as
a set. Note the original location of each valve set
for use during installation. Return each valve set to
its original location during installation.
1. Using a valve spring compressor, compress the
valve springs and remove the valve keepers.
Account for an upper spring retainer.
CC994
2. Remove the valve seal and the lower remaining
spring seat. Discard the valve seal.
CC134D
CC136D
NOTE: The valve seals must be replaced.
3. Remove the valve springs; then invert the cylinder
head and remove the valves.
CAUTION
Do not remove an excessive amount of the sealing
surface or damage to the camshaft will result. Always
check camshaft clearance when resurfacing the cover.
CAUTION
Water or parts-cleaning solvent must be used in con-
junction with the wet-or-dry sandpaper or damage to
the sealing surface may result.
For Discount Arctic Cat Parts Call 606-678-9623 or 606-561-4983
www.mymowerparts.com