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CUSTOMER
RESPONSIBILITIES
EVERY 5 HOURS
CLEAN
AIR
FILTER
(Fig. 15)
A dirty air filter decreases thelife and performance of the
engine and increases fuel consumption and harmful
emissions.
Always clean after 5 tanks of fuel or 5 hours of operation.
Clean more frequently in dusty conditions.
• Loosen the screws on the air filter cover enough to
remove the cover from the engine.
• Remove air filter from cover.
• Wash filter in warm soapy water.We recommend a mild
solution of dish washing liquid.
• Rinse air filter thoroughly in clean water.
• Squeeze air filter dry and replace in cover.
• Re-install the air filter cover, making sure the choke exit
slot is placed over the choke lever.
AIR
FILTER
(2) SCREWS
Figure 15
EVERY 25 HOURS
CLEAN
AND INSPECT SPARK ARRESTOR
SCREEN
(Fig. 16)
As the unit is used, carbon deposits build up on the muf-
fler and spark arrestor screen (if installed), and must be
removed to avoid creating a fire hazard or affecting
engine performance.
Required cleaning is every 25 hours of operation or annu-
ally, whichever is less.
Replace the spark arrestor screen if breaks occur.
CLEANING THE SPARK ARRESTOR SCREEN
• Loosen and remove the five rear shroud screws.
• Remove the rear shroud.
• Remove the muffler cover retaining springs.
• Remove muffler diffuser and spark arrestor screen
assembly. Notice the orientation of these parts for
reassembly.
• Clean the spark arrestor screen with a wire brush or
replace if breaks are found in the screen.
Replace any broken or cracked parts.
Reinstall diffuser and spark arrestor screen assembly.
Reinstall muffler cover and the two muffler cover retain-
ing springs.
• Reinstall rear shroud and the five rear shroud screws
(15-20 in.lbs.).
DRIVE SHAFT LUBRICATION
(Fig. 17)
• Loosen the nose cone screws.
• Remove the tube from the nose cone.
• Remove the drive shaft from the tube.
• Check drive shaft for broken wires, twists or kinks, and
replace if damage is found.
• Usinga clean cloth, wipe surface of ddve shaft thor-
oughlyto remove anygrease or dirt.
• Apply a uniformcoat of lithiumbase grease to the entire
surface of the drive shaft.
• Injectthe remaining contents of the grease tube into the
top of the tube.
• Replace drive shaft in the tube.
• Re-assemble the gear box to the tube.Tighten screws
securely.
LUBRICATE THE DRIVE SHAFT
t! oA.
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GRIP SCREWS
(4)
Figure 17
YEARLY
REPLACE SPARK PLUG (Fig. 18)
The spark plug should be replaced each year to ensure
the engine starts easier and runs better. Spark plug gap
should be .025".
• Twist,then pull of spark plug boot.
• Remove spark plug from cylinder and discard.
• Replace with correct spark plug and re-tighten with
spark plug wrench (10-12 if.lb.).
• Reconnect spark plug boot.
SPARK PLUG
Boor
Figure 16
Figure 18
-15-
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