Arctic Cat 400 Service Manual page 317

Top-Side Components
NOTE: For efficiency, it is preferable to remove
and disassemble only those components which
need to be addressed and to service only those
components. The technician should use discretion
and sound judgment.
AT THIS POINT
To service any one specific component, only
limited disassembly of components may be
necessary. Note the AT THIS POINT information
in each sub-section.
NOTE: The engine/transmission does not have
to removed from the frame for this procedure.
Removing Top-Side
Components
A. Valve Covers
B. Cylinder Heads
NOTE: If the left-side components have been
removed, align the keyway (A) in the crankshaft
with the embossed line (B) on the crankcase.
NOTE: If the left-side components have not been
removed, remove the spark plugs and timing
inspection plug (A); then using the recoil starter,
rotate the crankshaft to top-dead-center (TDC) of
the compression stroke of the front cylinder. TF is
top-dead-center front.
Back
KX530A
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1. Remove the two tappet covers. Account for two
gasket rings.
! CAUTION
Be sure the crankshaft is on TDC of the compres-
sion stroke of the front cylinder or valve damage
could occur.
2. Remove front and rear camshaft chain tension-
ers by first removing the spring cap (D).
Account for one washer (C), one spring (B), and
one guide rod (A) for each tensioner.
! CAUTION
This is a ratchet-type chain tensioner and must be
completely removed and reset if the mounting bolts
are loosened. Retightening the mounting bolts after
loosening will cause damage to the tensioner and
camshaft chain.
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3
ATV2057A
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