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CUSTOMER RESPONSIBILITIES
AFTER USE "
CLEAN UNIT AND LABELS
• Clean the unit using a damp cloth with a mild detergent.
• Wipe off the unit with a clean dry cloth.
EVERY 5 HOURS
CLEAN AIR FILTER (Fig. 30)
A dirty air filter decreases the life and performance of the
engine and increases fuel consumption and harmful emis-
sions.
Always clean your air filter a{ter 15 tanks of fuel or 5 hours
of operation, whichever is less. Clean more frequently in
dusty conditions. A used air filter can never be completely
cleaned. It is advisable to replace your air filter with a new
one after every 50 hours of operation, or annually, which-
ever is less,
* Loosen 3._'scttewson cylinder cover.
Remove _y|inder cover.
"* Remove;&it :filter.
° Clean the air filter using hot soapy water. Rinse with
clean cool water and air dry completely prior to rein-
stalling.
° Lightly oil air filter prior to installing. Use 2-cycle engine
oil or motor oil (SAE 30). Squeeze excess oil from filter.
This will improve the efficiency of the air filter.
° Reinstall air filter.
= Reinstall cylinder cover and 3 screws (15-20 in-lbs.).
Cylinder
Cover
Air Screws
Filter
Cylinder
r
Figure 30
EVERY 25 HOURS
INSPECT MUFFLER AND-SPARK ARRESTOR
SCREEN (IF INSTALLED) (Fig, 31)
As the unit is used, carbon deposits build up on the muffler
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 2 muffler cover screws.
* Remove the muffler cover (cover snaps intomuffler body).
• Remove mufflerdiffuser and spark arrestor screen assem-
bly, 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 diffuserand spark arrestorscreen assembly with
round holes facing up and towards mufflercover.
• Reinstall mufflercover and 2 screws (7-8 ft-lbs),
.____,/Muffler Diffuser/
Spark Arrestor
Screen
t
Figure 31
YEARLY
REPLACE SPARK PLUG (Fig. 32)
The spark plug should be replaced each year to ensure the
engine starts easier and runs better. Spark plug gap
should be .025".
• Loosen 3 screws on cylinder cover.
• Remove cylinder cover.
* Twist, then pull off the spark plug boot.
• Remove spark plug from cylinder and discard.
• Replace with correct spark plug and tighten with a 3/4"
socket wrench (10-12 Ib-ft).
• Reinstall spark plug boot.
• Reinstall cylinder cover and 3 screws (t5-20 in-lb).
Cylinder Cover
Screws
Spark Plug W / \ -'3"/_ Cy'inder
Boot ____._,,,_'_ _over
Figure 32 :
- 20 -
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