Toro 22321 - Page 28

3.Pullthewiresoffofthesparkplugs(Figure34).
Figure34
1.Sparkplugwire2.Sparkplug
4.Cleanaroundthesparkplugs.
5.Removebothsparkplugsandmetalwashers.
CheckingtheSparkPlugs
1.Lookatthecenterofbothsparkplugs(Figure35).
Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingonthe
insulatorusuallymeanstheaircleanerisdirty.
Important:Nevercleanthesparkplugs.
Alwaysreplacethesparkplugswhentheyhave
ablackcoating,wornelectrodes,anoilylm,
orcracks.
Figure35
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
2.Checkthegapbetweenthecenterandsideelectrodes
(Figure35).
3.Bendthesideelectrode(Figure35)ifthegapisnot
correct.
InstallingtheSparkPlugs
1.Threadthesparkplugsintothesparkplugholes.
2.Tightenthesparkplugsto20ft-lb(27N-m).
3.Pushthewiresontothesparkplugs(Figure34).
4.Closethehood.
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