Figure35
CheckingtheSparkPlug
Important:Donotcleanthesparkplug.Always
replacethesparkplugwhenithasablackcoating,worn
electrodes,anoilylm,orcracks.
Note:Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingontheinsulator
usuallymeansthattheaircleanerisdirty.
Setthegapto0.76mm(0.030).
Figure36
InstallingtheSparkPlug
Tightenthesparkplugto20N-m(15ft-lb).
B
A
15 ft-lb
20 N-m
g027480
C
D
Figure37
FuelSystem
Maintenance
DANGER
Incertainconditions,gasolineisextremely
ammableandhighlyexplosive.Areorexplosion
fromgasolinecanburnyouandothersandcan
damageproperty.
•Performanyfuelrelatedmaintenancewhenthe
engineiscold.Dothisoutdoorsinanopenarea.
Wipeupanygasolinethatspills.
•Neversmokewhendraininggasoline,andstay
awayfromanopenameorwhereasparkmay
ignitethegasolinefumes.
ReplacingtheIn-LineFuel
Filter
ServiceInterval:Every100hours—Replacethein-linefuel
lter
Neverinstalladirtylterifitisremovedfromthefuelline.
1.Parkthemachineonalevelsurfaceanddisengagethe
blade-controlswitch.
2.Movethemotion-controlleversoutwardtothepark
position,stoptheengine,removethekey,andwaitfor
allmovingpartstostopbeforeleavingtheoperating
position.
3.Replacethein-linefuellter(Figure38).
30