Exmark QUEST QZS708GEM50200 User Manual

Maintenance
RemovingtheSparkPlug–Exmark
452ccengine
1.DisengagethePTOandensuretheparkingbrake
isengaged.
2.Stoptheengine,removethekey,andwaitforall
movingpartstostopbeforeleavingtheoperating
position.
3.Disconnectthewirefromthesparkplug.
g027478
Figure46
4.Cleanaroundthesparkplugtopreventdirtfrom
fallingintotheengineandpotentiallycausing
damage.
5.Removethesparkplugandmetalwasher.
CheckingtheSparkPlug–Exmark
452ccEngine
1.Inspectthesparkplug
Note:Ifyouseelightbrownorgrayonthe
insulator,theengineisoperatingproperly.A
blackcoatingontheinsulatorusuallymeansthe
aircleanerisdirty.
Important:DoNotcleanthesparkplug.
Alwaysreplacethesparkplugwhenithasa
blackcoating,wornelectrodes,anoilylm,
orcracks.
g027479
Figure47
1.Centerelectrode
insulator
3.Airgap(nottoscale)
2.Sideelectrode
2.Checkthegapbetweenthecenterandside
electrodes.
3.Setthegapto0.030inch(.76mm).
InstallingtheSparkPlug–Exmark
452ccEngine
1.Installthesparkplug.Makesurethattheairgap
issetcorrectly.
2.Tightenthesparkplugto15ft-lb(20N-m).
g027480
Figure48
3.Pushthewireontothesparkplug.
ServicingtheSpark
Plug-Exmark708ccEngine
ServiceInterval:Every100hours/Yearly
(whichevercomesrst)
Every200hours/Every2
years(whichevercomes
rst)—Replacethespark
plug(Exmark708cc
engine).
Ensurethattheairgapbetweenthecenterandside
electrodesiscorrectbeforeinstallingthesparkplug.
Useasparkplugwrenchforremovingandinstalling
thesparkplugandagappingtoolorfeelergaugeto
checkandadjusttheairgap.Installanewsparkplug
ifnecessary.
Type:ChampionRN9YCorequivalent
47

Exmark QUEST QZS708GEM50200 Specifications

General

Brand	Exmark
Model	QUEST QZS708GEM50200
Category	Lawn Mower
Language	English