Air Filter; Spark Plug; Muffler; Spark Arrestor Screen - Craftsman 358.351080 Operator's Manual

i CUSTOMER RESPONSIBILITIES
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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 consumptionand harmful emis-
sions,
Always clean your air filter after 15 tanksof fuel or 5 hours
of operation, whichever is less.Clean more frequently in
dusty conditions.Aused air filtercan never be completely
cleaned. It is advisable to replaceyour air filter with a new
one after every 50 hours of operation,or annually, which-
ever is less.
• Loosen 3 screws on cylindercover,
• Remove cyUndercover.
* Remove air filter.
• Clean the afr 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 efficiencyof the air filter.
• Reinstall air filter.
Reinstall cytindei" cover and 3 screws (15-20 in-lbs.).
Air Cover
Filter Screws
,f
Cylinder
Cover
Figure30
EVERY 25 HOURS
INSPECT MUFFLER AND
SPARK ARRESTOR SCREW. I NSTA,LEO
s the unitis used, carbon depositsbuild up on the muffler
and spark arrestor screen (if installed), and must be
removed to avoid creating a fire hazard or affectingengine
performance.
Required cleaningis every 25 hours of operationor annu-
ally, whicheveris 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 into muffler
body).
• Remove muffler diffuser and spark arrestor screen
assembly. Notice the orientation of these parts for
reassembly,
_ lean the spark arrestor screen with a wire brush or
replace if breaks are found inthe screen.
Replace any brokenor cracked parts.
• Reinstall diffuser and spark arrestor screen assembly
with roundholes facing up and towards mufflercover.
Reinstall muffler cover and 2 screws (7-8 ft-lbs).
Muffler Diffuser/
Muffler
Cover
Screws
/
Body
Cover
Figure 31
YEARLY
REPLACE SPARK PLUG (Fig. 32)
The spark plug s_ould.be replaced each year to ensure the
engine starts easier and runs better. ::_parkplug gap
should be .025".
• Loosen 3 screws on cylindercover.
• Remove cylindercover.
• Twist, then pull off the spark plug boot.
• Remove spark plug from c_ncter and discard.
Replace with correct spark plug and tighten with a 3/4"
socket wrench (10-12 Ib-ft).
Reinstall spark plug boot.
Reinstall cylindercover and 3 screws (15-20 in-lb).
SCrews
Plug Boot
Cylinder
Cover
Plug
- 2O
Figure 32