9.Installthebackcoverandreturnthemachinetothe
operatingposition.
ReplacingtheSparkPlug
ServiceInterval:Yearly—Replacethesparkplug.
UseaChampionQC12YCorequivalentsparkplug.
Note:Toaccessthesparkplug,youmustrstremovethe
uppersnowhood(Figure46).
Figure46
1.Chokeknob
3.Ignitionkey
2.Uppersnowhood
4.Screw(2)
1.Removethechokeknobandtheignitionkey(Figure
46).
2.Removethe2screwsthatsecuretheuppersnowhood
tothemachine(Figure46).
3.Slowlyremovetheuppersnowhood,ensuringthat
theprimerbulbhoseandtheignitionwireremain
connected.
4.Removethebracketthumbscrewandthebracket
(Figure47).
Figure47
1.Spark-plugwire
3.Thumbscrew
2.Bracket
5.Cleanaroundthebaseofthesparkplug(Figure47).
6.Removeanddiscardtheoldsparkplug.
Note:Youwillneedaratchetwrenchextensionto
removethesparkplug.
7.Setthegapbetweentheelectrodesonanewsparkplug
at0.030inch(0.76mm)(Figure48).
Figure48
1.0.030inch(0.76mm)
8.Installthenewsparkplug,tightenitrmly,andattach
theignitionwiretothesparkplug.
9.Installthebracketwiththethumbscrewthatyou
removedinstep4.
10.Ensurethattheprimerbulbhoseandtheignitionwire
areconnectedandclearofthecarburetorbracket.
11.Securetheuppersnowhoodtothemachinewiththe2
screwsthatyoupreviouslyremoved.
12.Alignthetabonthechokecontrolknobwiththeslot
ontheuppersnowhood.
13.Connectthechokecontrolknobtothechokeshafton
thecarburetor.
23