Manual

Checking Spark Plug
Checksparkplugyearlyor every100operatinghours
1. Cleanareaaroundsparkplug.
2. Removeand inspectsparkplug.
3. Replacesparkplugif porcelainis crackedor if electrodesare
pitted,burnedorfouledwithdeposits
4. Checkelectrodegapwitha feelergaugeandset gapto.030
(0.76ram)if necessary.SeeFigure15.
5. Reinstallsparkplugandtightensecurely.
NOTE:A resistorsparkplugmust beusedfor replacement.Contacta
SearsPartsand RepairCenterfor a replacementsparkplug.
Carburetor
If yoususpectyourcarburetorneedsadjusting,seea SearsPartsand
RepairCenter.Engineperformanceshouldnotbe affectedat altitudes
upto 7,000feet(2,134meters).Foroperationat higherelevations,
contacta SearsPartsand RepairCenter.
Engine Speed
Avoidseriousinjuryor death,DO NOTmodifyenginein anyway.
Tamperingwiththegovernorsettingcancausethe engineand
equipmentto operateat unsafespeeds.NEVERtamperwithfactory
settingof enginegovernor.Runningtheenginefasterthanthe speed
set at thefactoryis dangerous.
LUBRICATION
Drive and Shifting Mechanism
At leastonce a seasonorafterevery25hoursof operation,remove
rearcover.Lubricateall chains,sprockets,gears,bearings,shafts,and
the shiftingmechanism.Useengineoil or aspraylubricant.Referto
Figure16.
NOTE:Becarefulnotto getany oilon thealuminumdriveplateor
rubberfrictionwheel.Doingso will hinderthe snowthrower'sdrive
system.Wipeoff anyexcessor spilledoil.
Wheels
At leastonce a season,removebothwheels.Cleanandcoattheaxles
witha multipurposeautomotivegreasebeforereinstallingwheels.
Chute Directional Control
Oncea season,lubricatetheeye bolt bushingandthespiralwith
3-in-1oil.
Auger Shaft
At leastonce a season,removethe shearpinson augershaft.Spray
lubricantinsideshaft,andaroundthe spacersandflange bearings
foundat eitherendof the shaft.SeeFigure17.
3
II
II
1..030 (.76 ram)Gap
2. Electrodes
Porcelain
Figure15
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Figure16
Figure17
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17