Toro 23210 - Page 26

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Figure35
1.Spark-plugwire/sparkplug
4.Cleanaroundthesparkplugtopreventdirtfrom
fallingintotheengineandpotentiallycausing
damage.
Note:Theheatshieldmayinterfereontheright
side;removeitifnecessaryandreplaceitwhen
nished.
5.Removethesparkplugandthemetalwasher.
CheckingtheSparkPlug
1.Lookatthecenterofthesparkplug(Figure36).
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeansthattheaircleanerisdirty.
2.Ifneeded,cleanthesparkplugwithawirebrushto
removecarbondeposits.
Figure36
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Alwaysreplacethesparkplugwhen
ithaswornelectrodes,anoilylmonit,orhas
cracksintheporcelain.
3.Checkthegapbetweenthecenterandsideelectrodes
(
Figure36).Bendthesideelectrode(Figure36)if
thegapisnotcorrect.
InstallingtheSparkPlug
1.Installthesparkplugandthemetalwasher.Ensure
thattheairgapissetcorrectly.
2.Tightenthesparkplugto16ft-lb(22N-m).
3.Connectthewiretothesparkplug(
Figure36).
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