Operator's Manual

Underneaththefuelvalveisasedimentcuptocatchdirtin
thefuel.
1.MovethefuelvalvetotheOffposition,alltheway
totheleft.
2.Unscrewthesedimentcup.Makesurenottomisplace
theo-ring(Figure17).
Figure17
1.Sedimentcup2.O-Ring
3.Cleanthereservoirandtheo-ringusingacleaning
solventanddrycarefully.
Note:Makesurenottomisplacetheo-ring.
4.Puttheo-ringinplaceinthegrooveofthecupand
replacethesedimentcup.
5.TurnthefuelvalvetotheOnposition,allthewaytothe
right,andcheckforleaks.Ifitleaks,replacetheo-ring.
ServicingtheSparkPlug
ServiceInterval:Every100hours—Checkthesparkplugs.
Ensurethattheairgapbetweenthecenterandsideelectrodes
iscorrectbeforeinstallingthesparkplug.Useasparkplug
wrenchforremovingandinstallingthesparkpluganda
gappingtool/feelergaugetocheckandadjusttheairgap.
Installanewsparkplugifnecessary.
Type:BPR6ES(NKG)orequivalent
AirGap:0.28–0.031inch(0.70-0.80mm)
RemovingtheSparkPlug
1.Lowerthegrinderandstopthemachine;Referto
StoppingtheEngine(page10).
2.Pullthewireoffofthesparkplug(Figure18).
Figure18
1.Sparkplug
2.Wire
3.Cleanaroundthesparkplug.
4.Removethesparkplugandthemetalwasher.
CheckingtheSparkPlug
1.Lookatthecenterofthesparkplug(Figure19).Ifyou
seelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
Important:Donotcleanthesparkplug.Always
replacethesparkplugwhenithasablackcoating,
wornelectrodes,anoilylm,orcracks.
Figure19
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
2.Checkthegapbetweenthecenterandsideelectrodes
(Figure19).Bendthesideelectrode(Figure19)ifthe
gapisnotcorrect.
InstallingtheSparkPlug
1.Threadthesparkplugintothesparkplughole.
2.Tightenthesparkplugto20ft-lb(27N-m).
3.Pushthewireontothesparkplug.
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