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6.
Attachthe airfilter cover, m aking sureto alignplasticrib features onthe
shroudto the plastic features on the airfilter cover. S eeFigure 17. T urn
thumbscrews clockwise untilsnug.Check f or anymisalignment.
Air Filter
Cover
Plastic
Feature
Shroud
Feature
Figure 17
SparePlug Service
Toensureproperengineoperation, t hesparkplugmustbeproperlygapped and
freeofdeposits.
1.
Remove t he sparkplugbootandusea sparkplugwrenchto remove the
plug.SeeFigure18.
f
Spark Plug
J
If the engine hasbeenrunning, the muffler will beveryhot. Becareful not
to touch the muffler.
Measure the plug gapwith afeelergauge. C orrect a snecessary b ybending
sideelectrode. S eeFigure 19.Thegapshouldbesetto 0.024-0.031 i n.
Electrode
_=--_0.024-0.031
in,
J
Figure19
4.
Check thatthe sparkplugwasherisingoodcondition andthreadthe spark
plug inby handto prevent c ross-threading.
5.
Afterthe sparkplugis seated, t ightenwith asparkplug wrench to compress
the washer.
NOTE: Wheninstalling a newsparkplug,tighten 1/2 turnafter the spark
plug seats to compress t he washer. W henreinstalling a usedsparkplug,
tighten 1/8-1/4turn afterthe sparkplug seats to compress t he washer.
IMPORTANT: Thesparkplugmustbesecurely tightened.Animproperly
tightenedsparkplugcanbecome veryhot andmaydamage the engine.
Muffler
Temperature of muffler and nearby engine areasmayexceed150° F(65°C).
Avoidcontactwith theseareas.
Inspect m ufflerperiodically, andreplace i f necessary. Replacement parts
forthe mufflermustbethe sameandinstalled i n thesamepositionasthe
originalparts.
CleanEngine
Daily or beforeeveryuse, c leangrass, c haffor accumulated debris from
engine.Keep linkage, s pring,andcontrolsclean.
Keep areaaroundandbehindmufflerfreeofanycombustible debris.
Keeping enginecleanallowsair movement a roundengine.
Engine partsshouldbe keptcleanto reduce the riskof overheating and
ignitionof accumulated d ebris.
Donot usewater to cleanengine parts. Watercould contaminate fuel
system.Usea brushor dry cloth.
Carburetor Adjustment
The carburetor onthisengine isnotadjustable.
2.
Visually inspectthe sparkplug.Discard the sparkplugif thereisapparent
wear, o r if the insulatoriscracked or chipped.Clean the sparkplugwith a
wirebrushif it isto be reused.
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