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2. Removepleatedfilter from plastichousingcoverand replacewith
cleanor newfilter.
3. Tiltcoverupinto placeand tightenscrew.
NOTE:If thefilter istorn or damagedinanyway,replaceit.
_ ARNING:Temperatureof muffler and nearbyareas
mayexceed 150° F (65°C). Avoidthese areas.
SERVICE SPARK PLUG
Cleanthesparkplug and resetthe gap to .030"at least oncea season
or every50hoursof operation.See Figure15.Sparkplug replacement
is recommendedat the start of eachseason.Referto engineparts list
for correctsparkplug type.
NOTE:Do notsandblastspark plug.Sparkplug shouldbe cleanedby
scrapingor wire brushingand washingwith a commercialsolvent.
f --,,
2 3
II
II
II
II
II
II
1..030 (.76 turn) Gap
2. Electrodes
3. Porcelain
Figure 16
,J
SERVICE MUFFLER
• Inspectmufflerperiodically,and replaceif necessary.
• If yourengineis equippedwith a spark arresterscreenassembly,
removeafterevery 50 hoursof use for cleaningand inspection.
Replaceif damaged.
_ ARNING:Donot operate the YardVacuumwithout
a muffler ortamper withthe exhaustsystem.
Damagedmufflers or spark arresters could create a
fire hazard.
CLEAN ENGINE
• Cleanengineby removingdirt and debriswith a cloth or brush.
Frequentlyremovegrass clippings,dirt, and debrisfrom cooling
fins,air intakescreen,levers,and linkage.This will help ensure
adequatecoolingand enginespeed.
15
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