Toro 37798 - Spark Plug Replacement

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Figure33
1.Hexshaft
3.Rubberwheel
2.Steelfrictionpulley
Important:Donotgetoilontherubberwheelor
thesteelfrictionpulleybecausethetractiondrive
willslip(Figure33).
1.Drainthefuelfromthefueltank.
2.Tipthemachineforwardontoitsaugerhousing
andblockitsothatitcannotfall.
3.Removethebackcover(Figure34).
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Figure34
1.Screws
4.Movethespeed-selectorlevertoPositionR2.
5.Dipyourngerinautomotiveengineoiland
lightlylubricatethehexshaft.
6.Movethespeed-selectorlevertoPosition6.
7.Lubricatetheotherendofthehexshaft.
8.Movethespeed-selectorleverforwardand
rearwardafewtimes.
9.Installthebackcoverandreturnthemachineto
theoperatingposition.
ReplacingtheSparkPlug
ServiceInterval:Every100hours—Replacethe
sparkplug.
WARNING
Replacingthesparkplugwhiletheengineis
hotcanresultinburns.
Waituntiltheengineiscooltoreplacethe
sparkplug.
UseaTorosparkplugorequivalent(Champion®
RN9YCorNGKBPR6ES).
1.Removetheboot(Figure35).
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Figure35
1.Spark-plugboot
2.Cleanaroundthebaseofthesparkplug.
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Figure36
3.Removeanddiscardtheoldsparkplug.
Note:Youwillneedaratchetwrenchextension
toremovethesparkplug.
4.Setthegapbetweentheelectrodesonanew
sparkplugat0.76mm(0.030inch)asshown
inFigure37.
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