Toro Power Clear 721 R - Servicing the Spark Plug

ServicingtheSparkPlug
ServiceInterval:Yearly—Servicethesparkplugand
replaceitifnecessary.
UseaNGKBPR6ESorChampionRN9YCspark
plugorequivalent.
1.Shutofftheengineandwaitforallmovingparts
tostop.
2.Rotatethedischargechutesothatitfaces
forward.
3.Removethedischargechutebyremovingthe3
screwsholdingthechuteandthescrewsholding
thechuteseal(Figure24).
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Figure24
4.Removethe4screwsthatsecuretheshroud
(Figure25).
g011435
Figure25
1.Screw(4)3.Sparkplug
2.Shroud4.Spark-plugwire
5.Removethefuel-tankcap.
6.Removetheshroud(Figure25).
7.Installthefuel-tankcap.
8.Disconnectthewirefromthesparkplug.
9.Cleanaroundthesparkplug.
10.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,or
dirtysparkplug.Donotcleantheelectrodes
becausegritenteringthecylindercan
damagetheengine.
11.Setthegapontheplugto0.030inch(0.76mm)
asshowninFigure26.
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Figure26
1.Center-electrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
15