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AFTER USE
CLEAN UNIT AND LABELS
• Clean the unit usinga dampcloth witha mild detergent.
• Wipe off the unit witha cleandry cloth,
EVERY 5 HOURS
CLEAN AIR FILTER (Fig. 30)
A dirtyair filter decreases the life andperformance of the
engine and increases fuelconsumptionand harmfulemis-
sions,
Alwaysclean yourair filterafter 15 tanksoffuel or 5 hours
of operation, whichever is less.Clean more frequently in
dustyconditions.Aused air filtercan never be completely
cleaned. It is advisable to replaceyourair filterwith a new
one after every 50 hours ofoperation,or annually,which-
ever is less.
• Loosen 3 screws oncylindercover,
• 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 priortOinstalling.Use 2-cycle engine
oilor motor oil (SAE 30). Squeeze excessoil from filter.
This will improvethe efficiencyof theair filter.
• Reinstallair filter.
Reinstall cytindei"coverand 3 screws(15-20 in-lbs.).
Air Cover
Filter Screws
,f
Cylinder
Cover
Figure30
EVERY 25 HOURS
INSPECT MUFFLER AND
SPARKARRESTORSCREW.INSTA,LEO)
s the unitisused,carbondepositsbuildup onthe muffler
and spark arrestor screen (if installed), and must be
removedtoavoidcreatinga fire hazard oraffectingengine
performance.
Required cleaningis every25 hours of operationor annu-
ally,whicheveris less.
Replace thesparkarrestor screen if breaksoccur.
CLEANING THE SPARK ARRESTOR SCREEN
• Loosen and removethe 2 mufflercoverscrews.
• 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 breaksare foundinthe screen.
Replace any brokenor cracked parts.
• Reinstall diffuser and spark arrestor screen assembly
with roundholesfacingup and towardsmufflercover.
Reinstall muffler coverand 2 screws (7-8 ft-lbs).
MufflerDiffuser/
Muffler
Cover
Screws
/
Body
Cover
Figure31
YEARLY
REPLACE SPARK PLUG (Fig. 32)
The spark plugs_ould.bereplaced each yeartoensurethe
engine starts easier and runs better. ::_parkplug gap
should be .025".
• Loosen 3 screwson cylindercover.
• Remove cylindercover.
• Twist,then pulloff the spark plug boot.
• Remove sparkplugfrom c_ncter and discard.
Replace withcorrect spark plug and tightenwith a 3/4"
socketwrench (10-12 Ib-ft).
Reinstallspark plug boot.
Reinstallcylindercover and 3 screws (15-20 in-lb).
SCrews
Plug Boot
Cylinder
Cover
Plug
- 2O
Figure32