Operator's Manual

Figure18
1.Centerelectrodeinsulator
2.Sideelectrode
3.Airgap(nottoscale)
6.Carefullyinstallthesparkplugbyhand(toavoidcross
threading)untilitishandtight.
7.Tightenthesparkpluganadditional1/2turnifitis
new;otherwise,tightenitanadditional1/8to1/4turn.
Important:Aloosesparkplugcanbecomevery
hotandcandamagetheengine;overtighteninga
sparkplugmaydamagethethreadsinthecylinder
head.
8.Connectthewiretothesparkplug.
BeltMaintenance
CheckingtheBeltTension
ServiceInterval:Beforeeachuseordaily—Checkthebelt
tension.Iftheengineisworkingbutails
seemunderpowered,checkbelttension
1.Stopthemachineonalevelsurface,stoptheengine,
turnofftheengineswitch,disconnectthespark-plug
wire,andraisetheailbladestothehighestposition.
2.Removethe4boltssecuringthebeltcovertotheleft
sideofthemachineandremovethecover(Figure19).
Figure19
1.Belt3.Bolts
2.Cover
3.Checkthetensionofthebelt(Figure19).
Note:Thebeltshouldnotexmorethana1/2inch
(12mm)withmoderatengerpressureappliedtothe
spanjustabovethemachineframe.
4.Ifthebelttensionisloose,refertoAdjustingtheBelt
Tension(page17).
5.Installbeltcoverbeforeoperatingthemachine.
AdjustingtheBeltTension
1.Stopthemachineonalevelsurfaceandstoptheengine
byreleasingtheoperatorpresencebail.
2.Totightenthebelt,loosenthefourmountingnuts
securingtheenginetotheframe.
17