Addendum

ServicingtheSparkPlug
ServiceInterval:Every100hours
SparkPlugSpecication
SparkPlugType:NGKBR6HS,ChampionRTL86C,
orequivalent
RemovingtheSparkPlug
1.Preparethemachineformaintenance;referto
PreparingtheMachineforMaintenance(page
5).
2.RemovethesparkplugasshowninFigure12.
g008791
Figure12
CheckingtheSparkPlug
AirGap:0.6to0.7mm(0.02to0.03inch)
Important:Donotcleanthesparkplug(s).
Alwaysreplacethesparkplug(s)whenithasa
blackcoating,wornelectrodes,anoilylm,or
cracks.
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Useagappingtool/feelergaugetocheckandadjust
theairgapto0.6to0.7mm(0.02to0.03inch).
g008794
Figure13
InstallingtheSparkPlug
Tightenthesparkplugasfollows:
•Newsparkplug—12to15N∙m(8.7to10.8ft-lb)
•In-servicesparkplug—23to27N∙m(16.6to19.5
ft-lb)
g008795
Figure14
ServicingaHonda
®
Engine
PreparingtheMachinefor
Maintenance
WARNING
Whileyouaremaintainingoradjustingthe
machine,someonecouldstarttheengine.
Accidentallystartingtheenginecould
seriouslyinjureyouorotherbystanders.
Removethekeyfromtheignition(if
equipped),engageparkingbrake,andpull
thewire(s)offthesparkplug(s)beforeyou
doanymaintenance.Alsopushthewire(s)
asidesoitdoesnotaccidentallycontactthe
sparkplug(s).
Performthefollowingbeforeservicing,cleaning,or
makinganyadjustmentstothemachine.
1.Parkthemachineonalevelsurface.
2.Shutofftheengineandremovethekeyfromthe
machine(ifequipped).
3.Engagetheparkingbrake.
4.Waitforallmovingpartstostopallowtheengine
tocoolbeforeservicing,storing,ormaking
repairs.
5.Disconnectthespark-plugwire(Figure5).
9