Operator's Manual

OBSOLETE
operatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
2.Ifneeded,cleanthesparkplugwithawirebrushto
removecarbondeposits.
Figure37
1.Centerelectrodeinsulator3.Airgap(nottoscale)
2.Sideelectrode
Important:Alwaysreplacethesparkplugwhen
ithaswornelectrodes,anoilylmonit,orhas
cracksintheporcelain.
3.Checkthegapbetweenthecenterandsideelectrodes
(Figure37).Bendthesideelectrode(Figure37)ifthe
gapisnotcorrect.
InstallingtheSparkPlug
1.Installthesparkplugandthemetalwasher.Ensure
thattheairgapissetcorrectly.
2.Tightenthesparkplugto16ft-lb(22N-m).
3.Connectthewiretothesparkplug(Figure37).
FuelSystem
Maintenance
DrainingtheFuelTank
DANGER
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areorexplosion
fromgasolinecanburnyouandothersandcan
damageproperty.
•Draingasolinefromthefueltankwhenthe
engineiscold.Dothisoutdoorsinanopenarea.
Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,andstay
awayfromanopenameorwhereasparkmay
ignitethegasolinefumes.
1.Parkthemachineonalevelsurface,toensurethatthe
fueltankdrainscompletely.
2.Lowerthegrinder.
3.Stoptheengine,removethekey,andwaitforallmoving
partstostopbeforeleavingtheoperatingposition.
4.Turnthefuelshut-offvalvetotheclosedposition
(Figure38).
Figure38
1.Fuelshut-offvalve
5.Squeezetheendsofthehoseclampontheengineside
oftheshut-offvalvetogetherandslideitupthefuel
lineawayfromvalve(Figure38).
6.Pullthefuellineoffthevalve(Figure38).Openthe
fuelshut-offvalveandallowthegasolinetodraininto
agascanordrainpan.
Note:Nowisthebesttimetoinstallanewfuellter
becausethefueltankisempty.RefertoReplacingthe
FuelFilter.
7.Installthefuellineontothefuelshut-offvalve.Slide
thehoseclampclosetothevalvetosecurethefuelline.
25
OBSOLETE - REVISION: C
ECM 5168828, 04/05/2021 - SUPERSEDED BY:N/A