Arctic Cat DVX 250 2007, Руководство по обслуживанию

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KM708A
2. Inspect the camshaft holder for cracks, distor-
tion, or galling.
3. Inspect the rocker arm shafts for blue discolora-
tion or scoring.
4. Inspect the rocker arms for excessive wear,
loose adjusters, or scored camshaft followers.
KM710A
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 cotters.
Account for an upper spring retainer.
KM717A
2. Remove the valve seal, valve springs, and the
lower remaining spring seat. Discard the valve
seal.
„
NOTE: The valve seals must be replaced.
3. Invert the cylinder head and remove the valves.
KM717A
Measuring Valve Stem
Outside Diameter
1. Using a micrometer, measure the valve stem
outside diameter.
2. Acceptable diameter range (intake valve) must
be within specifications.
3. Acceptable diameter range (exhaust valve) must
be within specifications.
Measuring Valve Face/Seat Width
1. Using a micrometer, measure the width of the
valve face.
ATV-1004
2. Acceptable width range must be within specifi-
cations.
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