MAINTENANCE AND REPAIR INSTRUCTIONS
ROCKER ARM CLEARANCE
This requires disassembly of the engine. If you feel unsure or unqualified to perform this, take the unit to an authorized service center.
NOTE: Inspect the valve to rocker arm clearance with a feeler gauge after the first 10 hours of operation and then every 50 hours of operation thereafter.
•The engine must be cold when checking or adjusting the valve clearance.
•This task should be performed inside, in a clean, dust free area.
1.Remove the muffler cover by pressing down on the corner with a flat blade screwdriver (Fig. 38). Slide the notches on the sides of the muffler cover over the tabs on the engine cover and remove
Engine Cover
Muffler Cover 
Fig. 38
2.Remove the two (2) screws on top of the engine cover with a phillips screwdriver (Fig. 39).
Top View Of The Engine
Engine Cover | Remove Screws |
Muffler
Fig. 39
3. Remove the screw behind the engine cover (Fig. 40).
Screw
Fig. 40
4.Disconnect the spark plug wire.
5.Clean dirt from around the spark plug. Remove the spark plug from the cylinder head by turning a 5/8 in. socket counterclockwise.
6.Remove the engine cover (Fig. 39).
7.Clean dirt from around the rocker arm cover. Remove the screw holding the rocker arm cover with a large flat blade screwdriver or Torx T25 bit
(Fig. 41). Remove the rocker arm cover and gasket.
Rocker Arm Cover
Spark Plug Hole
Fig. 41
8.Pull the starter rope slowly to bring the piston to the top of its travel, (known as top dead center). Check that:
•The piston is at the top of its travel while looking in the spark plug hole (Fig. 41).
•Both rocker arms move freely, and both valves are closed.
If not, repeat this step.
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