Arctic Cat 660 cc, Service Manual, Page: 47 / 396

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2
Honing Cylinder
1. Wash the cylinder in parts-cleaning solvent.
2. Inspect the cylinder for pitting, scoring, scuffing,
and corrosion. If marks are found, repair the
surface using the cylinder hone.
„
NOTE: To produce the proper 60° cross-hatch
pattern, use a low RPM drill (600 RPM) at the rate
of 30 strokes per minute. If honing oil is not avail-
able, use a lightweight petroleum-based oil. Thor-
oughly clean cylinder after honing using soap and
hot water. Dry with compressed air; then immedi-
ately apply oil to the cylinder bore. If the bore is
severely damaged or gouged, replace the cylinder.
3. If any cylinder bore measurement exceeds the
limit, hone the cylinder and install an oversized
piston or replace the cylinder.
„
NOTE: Oversized piston and rings are available.
The oversized piston and rings are marked for
identification purposes.
ATV-1068
CAM LOBE WEAR
Worn cam lobes result in reduced power output. The
limit of cam lobe wear is specified for both intake and
exhaust lobes in terms of cam height which is to be
measured with a micrometer. Replace the camshaft if
found to be worn below specifications.
Measurement must be within specifications.
GEN0028B
GEN-0029
MEASURING CONNECTING ROD
SMALL END BORE INSIDE DIAMETER
1. Using a small bore gauge, measure the connecting
rod small end bore inside diameter.
2. Measurement must be within specifications.
GEN-0034
3. If the difference between the connecting rod small
end bore inside diameter and the piston pin outside
diameter exceeds the limit, replace both
connecting rod and piston pin. The measurement
must be within specifications.
GEN-0035
CRANKSHAFT RUNOUT
1. Support the crankshaft using a set of V blocks; use
a dial indicator to read crankshaft runout.
„
NOTE: The contact point of the dial indicator
should be on the seal area of the crankshaft.