Toro Greensmaster Flex 21 - Starting and Stopping the Engine; Mowing Operation

7.Cleanthepaperelementbytappingitgentlyto
removethedirt.
Note:Donottrytobrushdirtoffthepaper
element;brushingforcesthedirtintothebers.
Replacetheelementiftappingitfailstoremove
thedirt.
8.Cleanthefoamelementinwarm,soapywater
orinanonammablesolvent.
Note:Donotusegasolinetocleanthefoam
elementbecauseitcouldcreateariskofreor
explosion.
9.Rinseanddrythefoamelementthoroughly.
10.Wipedirtfromthebaseandthecoverwitha
moistrag.
Note:Ensurethatdirtanddebrisdonotenter
theairductleadingtothecarburetor.
11.Installtheair-cleanerelementsandensurethat
theyareproperlypositioned.Installthelower
wingnut.
12.Installthecoverandinstalltheupperwingnut
tosecureit.
ServicingtheSparkPlug
ServiceInterval:Every100hours
Every300hours
UseanNGKBPR6ESsparkplugorequivalent.
1.Shutofftheengineandwaitforallmoving
partstostop;refertoPreparingtheMachinefor
Maintenance(page17).
2.Cleanaroundthesparkplug.
3.Removethesparkplugfromthecylinderhead.
Important:Replaceacracked,fouled,or
dirtysparkplug.Donotsandblast,scrape,
orcleantheelectrodesbecauseengine
damagecouldresultfromgritenteringthe
cylinder.
4.Setthegapontheplugto0.7to0.8mm(0.028
to0.031inch)
g000533
Figure27
1.Center-electrodeinsulator
3.Airgap
2.Sideelectrode
5.Carefullyinstallthesparkplugbyhand(toavoid
crossthreading)untilitishandtight.
6.Tightenthesparkpluganadditional1/2turnif
itisnew;otherwise,tightenitanadditional1/8
to1/4turn.
Important:Aloosesparkplugcanbecome
veryhotandcandamagetheengine;
overtighteningasparkplugmaydamagethe
threadsinthecylinderhead.
7.Connectthewiretothesparkplug.
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