46
7. Using a wire brush, remove any dirt and debris that may have collected on the spark
arrestor screen.
8. If the spark arrestor screen shows signs of wear (rips, tears or large openings in the
screen), replace the spark arrestor screen.
9. Install the spark arrestor components in the following order:
a. Place spark arrestor screen over the muffler exhaust pipe. Push on the screen
until it fully bottoms out.
b. Place the spark arrestor band clamp over the screen and tighten with a flathead
screwdriver
10. Replace the discharge gate.
Checking and adjusting valve lash
!
CAUTION
Checking and adjusting valve lash must be
done when the engine is cold.
1. Remove the rocker arm cover and carefully remove the gasket. If the gasket is torn
or damaged, it must be replaced.
2. Remove the spark plug so the engine can be rotated more easily.
3. Rotate the engine to top dead center (TDC) of the compression stroke. Looking
through the spark plug hole, the piston should be at the top.
4. Both the rocker arms should be loose at TDC on the compression stroke. If they are
not, rotate the engine 360°.
5. Insert a feeler gauge between the rocker arm and the valve and check for clearance
(see Figure 20). See Table 1 for valve lash specifications.
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