Valve/Tappet Clearance - Arctic Cat DVX 400 2004 Service Manual

7. Install the seat making sure the seat is properly
secured.

Valve/Tappet Clearance

CHECKING
To check and adjust valve/tappet clearance, use the fol-
lowing procedure.
1. Remove the seat, gas tank cover, and body.
2. Turn the fuel valve to the "ON" position; then
remove the gas tank.
3. Disconnect the engine oil hose (3) and the engine oil
breather hose (4); then remove the spark plug.
4. Remove the three large Allen-head cap screws secur-
ing the valve cover; then remove the valve cover
accounting for the two camshaft end plugs and the
valve cover gasket.
6
SP014A
NOTE: The valve/tappet clearance specification
is different for intake and exhaust valves. The
clearance should only be checked when the
engine is cold (room temperature).
NOTE: Valve/tappet clearance adjustment must
be checked and adjusted in accordance with the
periodic maintenance chart or anytime valve
mechanism components are removed and rein-
stalled.
5. Remove the valve timing inspection plug (1) and the
generator cover cap (2); then rotate the crankshaft
with a socket wrench to top-dead-center (TDC) on
the compression stroke. The "T" line on the alterna-
tor rotor is aligned with the triangle mark on the
alternator cover.
SP120
SP121
SP122
SP123