Arctic Cat DVX 400 2008 Service Manual page 14

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3. Select a replacement tappet shim that will provide
the proper clearance.
NOTE: Tappet shims are available in 25 sizes
from 2.30-3.50 mm (0.09-0.14 in.) in 0.05 mm (0.002
in.) increments.
4. Install the selected shim at the valve stem with the
numbers facing the tappet. Be sure to measure the
shim with a micrometer to ensure it is the proper
size. Refer to the tappet shim selection table for
details.
NOTE: Apply molybdenum oil solution to the
top and bottom of the tappet shim. Make sure that
the numbered side is directed toward the tappet.
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5. Install the camshaft (see Section 3).
6. Rotate the crankshaft through two full revolutions
to ensure that all excess oil is squeezed from the
valve/tappet clearance to make sure it is within
specifications.
7. Apply Three Bond Sealant to the camshaft end
caps of the valve cover gasket; then install the
valve cover.
8. Tighten the valve cover cap screws to specifica-
tions (see Section 10).
9. Install the spark plug and tighten to specifications
(see Section 10); then install the timing inspection
plug.
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