Operator's Manual

g027484
Figure22
6.Addoiltothemachinesothattheoillevel
reachesthe“Full”markonthedipstick.
ServicingtheSparkPlug
ServiceInterval:Every50hours—Checkthespark
plug.
Every100hours—Replacethesparkplug.
Ensurethattheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingthesparkplug.
Useasparkplugwrenchforremovingandinstalling
thesparkplugandagappingtoolorfeelergaugeto
checkandadjusttheairgap.Installanewsparkplug
ifnecessary.
SparkPlugSpecication
Type:Champion
®
RC12YC,Autolite
®
3924,or
NGK
®
BPR6ES
AirGap:0.76mm(0.030inch)
RemovingtheSparkPlug
1.Parkthemachineonalevelsurface,shutoffthe
engine,andremovethekeyfromtheignition
switch.
2.Beforeremovingthesparkplug(s),cleanthe
areaaroundthebaseoftheplugtokeepdirt
anddebrisoutoftheengine.
3.Removethesparkplug(Figure23).
g027478
Figure23
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithas:a
blackcoating,wornelectrodes,anoilylm,or
cracks.
Note:Ifyouseelightbrownorgrayontheinsulator,
theengineisoperatingproperly.Ablackcoatingon
theinsulatorusuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.030inch).
g027479
Figure24
19