Toro Power Clear 721 - Replacing Drive Belt and Adjusting Controls

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Figure28
9.Wait3minutesfortheoiltosettleintheengine.
10.Wipethedipstickcleanwithacleancloth.
11.Withthemachineintheoperatingposition,
insertthedipstickintotheoil-lltube,butdonot
screwitin,thenremovethedipstick.
12.Readtheoillevelonthedipstick.
•Iftheoillevelonthedipstickistoolow,
carefullypourasmallamountofoilinto
theoil-lltube,wait3minutes,andrepeat
steps10through12untiltheoillevelonthe
dipstickiscorrect.
•Iftheoillevelonthedipstickistoohigh,
draintheexcessoiluntiltheoillevelonthe
dipstickiscorrect.
Important:Iftheoillevelintheengineistoo
lowortoohighandyouruntheengine,you
maydamagetheengine.
13.Installthedipstickintotheoil-lltubesecurely.
14.Recycletheusedoilproperly.
ReplacingtheSparkPlug
ServiceInterval:Every100hours—Replacethe
sparkplug.
WARNING
Replacingthesparkplugwhiletheengineis
hotcanresultinburns.
Waituntiltheengineiscooltoreplacethe
sparkplug.
UseaTorosparkplugorequivalent(Champion®
RN9YCorNGKBPR6ES).
1.Removetheboot(Figure29).
g030123
Figure29
1.Spark-plugboot
2.Cleanaroundthebaseofthesparkplug.
3.Removeanddiscardtheoldsparkplug.
Note:Youwillneedaratchetwrenchextension
toremovethesparkplug.
4.Setthegapbetweentheelectrodesonanew
sparkplugat0.76mm(0.030inch)asshown
inFigure30.
g001029
Figure30
1.0.76mm(0.030inch)
ReplacingtheDriveBelt
Ifthedrivebeltbecomesworn,oil-soaked,excessively
cracked,frayed,orotherwisedamaged,replacethe
belt.
1.Removethedrive-beltcoverbyremovingthe3
boltsasshowninFigure31.
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