Boss Drives SPORT H4400 User manual

Sport H Owner’s Manual
H4400 • H 4000 • H3700 EFI • H3500
www.bossdrives.com

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BOSSDRIVES
SportH
QuickStartGuideandWarranty
ModelsH3700EFI,H3500,H4000,&4400
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Attention:All4000and4400modelsmustuse91orhigherOctanefuel.
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TransmissionOilMUSTBEVISIBLEINSIGHTGLASS
MOTORMUSTBEINLEVELPOSITION
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Mounting
Fuel
Battery
Oil
Transmission/LowerUnitOil
StartSwitch
TrimSwitches
HandleAdjust
Starting
TravelLockandStrap
Running
ServiceSchedule
EmergencyTrim,StartandShiftProcedures
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Thankyouforbuyingthemostadvancedbackwateroutboardmotor.Pleasereadthisquickstart
manual,drivesafelyandletothersknowwhereyouaregoingandwhenyouwillreturn.
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Mounting:
Yourmotorisnotshippedwithmountingbolts.Useahoistcapableofhandling350poundstosafelyliftthe
enginefromthecrateontotheboat.TheBossHmotorweighsapproximately340pounds.
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2
Alignthemotortothecenteroftheboat,markthemountingholesanddrillusinga3/8”drillbit.Optimum
transomheightis20inches.TransomMUSTbeaminimumof18”andmaximumof21”.
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Youmustmountthemotorusingthetopandbottomboltsasshown.Themotormounthasadditional
mountingholestochoosetheremainingtwoboltmountingposition.
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Usesiliconetosealtheboltholes.Donotovertightentheboltsandcrushthebolt.
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BreakIn:
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Thereisnomoreimportantperiodofoperationthanthebreakinofyournewmotor.Motorsshould
bebrokeinovera5hourperiod.Duringthefirstthreehoursyoushouldnotrunfullthrottlefor
morethan5minutes.
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Allmodelsshouldrunatvariedthrottlepositionsallowingtheenginetocoolaspartsbreakin.
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Model4400requiresavalveadjustmentat5hours.Thisistheowner’sresponsibility.Changetheoilinitially
at25hours.Seepage11forinstructions.Failuretobreakintheengineproperlywillresultinoverheating
andenginedamageandisnotcoveredbywarranty.
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FuelandStorage:
ItisimportanttouseafuelstabilizersuchasStabilwhenevertheengineisnotbeingusedformorethantwo
weeks.Thereisnowarrantyonfuelsystemsanddamageincurredbyimproperstorage.
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Donotuseaquickdisconnectfuelhosewhichcanrestrictfueldelivery.Youcanuseamarineprimerbulb,
howeverdonotexcessivelypumptheprimerbulbasitcandamagethecarburetor.
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Ifyouareusingaforwardmountedfueltank,useaminimumsize5/16”fuelhose.
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Useaminimumof87Octanefuelforthe3500,3700EFIand4000models.Useaminimum91Octanefuelfor
themodel4400.Donotrun91OctaneintheBossH3500model.
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Handle:
Securetheenginehandleusingaboatstraporbungeestrapto
preventbouncingwhentrailering.Failuretosecurethehandleso
thatitdoesnotbounceduringtraileringwillvoidthemanufacturer
warranty.
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TraileringLock:
TheHmotorisequippedwithalockingballtravellockthatholdstheengineinthehorizontal(upanddown
“bouncing”)andaverticallockingbracket(leftandrightmovement)toholdthemotorstraightwhile
trailering.Toengage,removethesafetypinfromtheballtravellocklocatedonthedriversideoftheengine
totherearoftheboatandpulltheballoutwards.
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Cautionthisareaisapinchpointsokeephandsandfingersclearof
themechanism.
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 
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Totrailer,lowertheenginetoallowtheverticallockingbrackettoberotatedupward.Alignthe
motortoallowtheenginebaseplatetobeloweredintothe“upright”barsonthebracket.Thiswill
secureanyvertical,sidetosidemovementofthemotorwhentrailering.Whileholdingthedrive
upwards,pushthetravellockballandpininwardtolockthedriveinplace.Reinsertthetravellock
safetypin.Hint:Holdupwardsonthedrivetoremovethetravellockpintensiontoinsertthesafety
traileringpin.
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 
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4
Battery:
Useagroup27orlargerbatterywithatleast550crankingamps.
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EngineOil:
Yourengineholds2quartsofoil.Weshiptheenginewithnooil,howeversomeoilfromassemblymaybein
theengine.Addoilslowlyandcheckthedipstickwiththeengineinalevelposition.Werecommendusing
5W30or10W30syntheticblendoilinallmodels.
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Transmission/LowerUnitOil:
Yourtransmission/lowerunitholdsapproximately3quartsofoil.UseonlyFULLSYNTHETIC75W90oil
(Mobilorequivalent).
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StartSwitch:
Thestartkeyswitchislocatedonthefrontoftheengine.Ithasthreepositions,off,onandstart.You
canusetheemergencyshutofftostoptheengine,butyoumustturnthekeytotheoffpositionto
preventbatterydrain.
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SafetyLanyard:
Connectthesafetylanyardtoyourclothingorwraparoundyour
wrist.
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TrimSwitches:
YourSportHisequippedwithtwotrimswitches,oneonthehandleendandanotheronthesideofthehandle
nearthebaseofthehandle.Thehandleendtrimswitchisusedwhenrunningthemotorandthesidehandle
switchisusedforemergencytrimandfortrimmingtheenginefromtheground.Caution:PinchPointDo
notplaceyourhandsanywherenearthemountwhentrimmingtheengine.
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Starting:
Makesureeveryoneisclearofthepropeller.Placetheshifterinneutral.
TheSport3500modelenginechokeislocatedatthefrontleftpositionoftheengine.TheSport4000and
4400modelshaveachokeknobonthecarburetor.SportH3700EFIenginesdonothaveachoke.
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
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5
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HandleAdjust:
Theoperatorhandleisdesignedtofloat(freelymoveupanddown)
whendriving.Whentheenginehitsahardobjectwhenunder
power,thefloatinghandleabsorbstheimpact.
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Thehandlestationaryheightcanbeadjustedupwardwiththe
handlestopadjustmentboltlocatedunderthehandlenearthe
engine.
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Shifting:
YourSportHisequippedwithashifthandleforneutral,reverseandforwardgears.Theshifthandleis
equippedwithatriggerlocktopreventtheshifterfrommovingintheneutralandforwardgears.Squeeze
thetriggertoshift.Theenginemustberunningtoshifttopreventlinkagedamage.
Caution–Ensuretheengineidlehasbeensetto1200
RPMorlesstoensureeasyshifting,topreventdrive
damageandtoreducesuddenforwardmotionofthe
boatwhichmaycauseinjuryordeathtotheoperatoror
passengers.
Alwaysstopandstartthemotorintheneutralgear.
Alwaysshiftwiththeenginerunningatidlewhichshouldbe
1200RPMorless.
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Squeezethetriggerandmovethehandletowardtheenginetogointoreverse.Movethehandletowardsthe
frontoftheboattomoveforward.
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Again,donotshiftunlesstheengineisrunning!Shiftingwhentheengineisoffcancausedamagetotheshift
cableandlinkage.
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SkegAdjustment:
TillertorqueontheSportHcanbeadjustedbybendingthestainlessskegattachmentwithacrescentwrench.
Benditinsmallincrements.Morebendanglecausesthetillerhandletopullawayfromyou.Lessbendangle
causesthetillerhandletopushintoyou.Donotuseahammertoadjusttheskeg.
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Running:
TaketimetolearnwhereallthecontrolsarelocatedontheSportHbackwatermotor.
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Placethesafetylanyardonyourwristorclipittoyourclothing.
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Starttheengineinneutral.Lowerthepropellerintothewaterwiththetrimcontrolandsafelyplacethe
motoringear.Driveslowlyatfirsttolearnhowtosteerandthrottletheengine.Afterthepreviously
outlinedbreakinperiod,youmayrunthemotoratsustainedfullspeed.Trimthedriveupanddownslowly
sothatthepropellerhubisslightlyvisibleabovethesurface.Yourmotorwillrunbestinthisposition.Itis
notnecessarytotrimdownwhenyoustopandresumetravel.

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6
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Youcanlowerthedrivecompletelyformaximumtractioninmud,iceandthicklyvegetatedareas.Trimupto
clearlogsandrocks.
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EmergencyStart,Trim,andShiftProcedures:
Placethisemergencyproceduresheetinyourboattoolbox.Locateandtesttheemergencyprocedures.
YouwillneedaPhilipsscrewdrivertoaccessthetrimandshiftemergencyareasunderthehandle.
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EmergencyStart(whentheenginewillnotstartinneutral)
Locatetheyellowwireonthestartersideoftheengine.
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1. Disconnectthetwoyellowwirescomingfromthetopofthetransmissiontotwoyellowwirescomingout
ofengine.Connectthetwoyellowenginewirestogether.Startengine.
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EmergencyTrim:
Removethecoverfromtheundersideofthehandle.Disconnecttheblueand
greentrimwiresasshown.Placeoneendofthebluetrimwireonthebattery
cableandthegreenonanypartoftheenginewhereitwillground.Thetrim
shouldmoveup,reversethewirestogotheotherdirection.

EmergencyShift:
Ifyoubreakashiftcableorcan’tshift,removetherearinspectionplateunder
themuffler.Locatetheshiftarm.Removetheshiftcablepin.Rotatetheshift
armtowardsthepropellertogoforward.SeetheEmergencystartprocedure
abovetoconnectthestartoverride.Youcannowstarttheengineingear.Be
verycareful.Simplyturntheengineofftostop.







Caution:Owner’sResponsibility

Thefollowingitemsaretheresponsibilityoftheowner.Failuretomaintainthedriveandenginewill
resultinthelossofthepartandproductwarranty.

Trailering:Youmustusethetravellockandthehandletiedownbungee.
Transmission/LowerUnitOil:Itistheowner/operator’sresponsibilitytoensurethatthe
lowerunit/transmissionhasadequateoil.Checksiteglassonsideoftransmissionhousing.
Motormustbeinlevelposition.
Properstorageofengineusingfuelstabilizer.Stalefuelwillcausedamagetothecarburetor
andwillresultindifficultstarting,pooridle,accelerationandtopendspeed.Poorfuel
deliverycancauseanengineleanconditionandmayaffecttheperformanceandlifeofthe


7
engine.AlwaysuseafuelstabilizerlikeStabilwhentheengineisstoredformorethanone
month.Whileyourenginewillrunongasolinewithethanol,itisnotrecommended.
Propellerbalanceandcondition.Ifapropellerisworn,damagedorbent,itwillvibrateand
cancausethefollowingconditions.Loosebolts,handlevibration,leakingseals,bearing
failure,framecrackingandenginedamage.Adamagedpropellerwillcauseengineandframe
damageandisnotcoveredbywarranty.
Freezingrainandsnowcancauseseveredamagetothethrottleandcarburetor.Storethe
motorwithacover.Throttledamageandastickingcablewillresultinabrokenthrottle
cable,frayedcableandstickingcable.
Saltcancauseextensivecorrosiontothedriveandengine.Ensuretheproductiscleanedand
lubricatedeverytimeitisruninsaltwater.Asacrificialanodehasbeeninstalledonthe
lowerendofthemotortransommountandwillminimizecorrosiondamagehoweverall
corrosionmustberemoved.Corrosionwillcausemisfiring,poorelectricalswitchand
breakerandconnectionsandenginefailure.Removeandrepaintandareasthathave
corrosion.Usesiliconesprayprotectantonwireconnections.
Drivesealdamagewillresultinlossoffluidlevelinthetransmission,difficultshifting,
bearingfailureandultimatelyfailureoftheentiredrivesystem.Maintainfluidlevelsand
monitortheconditionofthesealsnearthepropeller.
Bolts,nutsandotherfastenersshouldbecheckedfrequentlytopreventearlydriveand
enginefailure.
Impactscancauseengineanddrivedamage.Thisincludespropandskegdamage,oilcooler
andhosedamage,throttleandkillswitchbreakage.Severeimpactscancausecarburetorand
airfilterseparation.Snagscanbreakfuelpumps,hosesandpullthedipstickofftheengine.
Thesemotorsarebuilttough,butcautionandsafetyshouldbeyourmainconcernwhen
runninginwaterswithunknowndepthandbottomconditions.Severeimpactsthatcause
frameandenginedamagearenotcoveredbywarranty.


SportHEngineServiceandWarranty

OilRecommendations
Werecommendtheuseofsynthetic5W30or10W40oilclassifiedforserviceSF,SG,SH,SJorhigher.Donot
usespecialadditives.

CheckOil
Placetheengineinalevelposition.Cleantheoilfillareaofanydebris.Removethedipstickandwipewitha
cleancloth.Insertthedipstickfully.Removethedipstickandchecktheoillevel.Itshouldbeatthetopofthe
oillevelindicator.Iflow,addoilslowly.Donotoverfill.Replacethedipstick.

OilPressure
Iftheoilistoolow,theengineisequippedwithalowoilpressureshutdownswitch.Theswitchpreventsthe
enginefromstartingiftheoillevelislowandwillstoptheengineiftheoilpressureislow.Ifthisoccurs,
checktheoillevelandfilltothefullmarkonthedipstick.Thelowoilshutdownswitchdoesnotstopthe
enginewhentheoillevelislow–ithoweverwillpreventtheenginefromstartingwhentheoillevelislow.

FuelRecommendations
Fuelmustmeettheserequirements:
Cleanfreshgasoline.
Aminimumof85octaneformodel3500,3700and91octaneformodels4000and4400engines.
Gasolinewithupto10%ethanol(gasohol)canbeused,BUTISNOTRECOMMENDED.


8

EngineRPM:
Theengineidlespeedshouldbesetat1200RPMorlesstoensuresmoothandjoltfreeshifting.HigherRPMs
cancausedamagetothedriveandyoucanlosecontroloftheengineandcauseseriousinjuryordeathtothe
operatorandpassengers.

FullthrottleengineRPMissetbythepropellersizewhenruninthewater.Usethefactoryrecommend
propellersforyourenginesizeshownbelow.NormaloperatingRPMisfrom3800to4200RPM.Yourengine
isequippedwithahighRPMgovernorthatwillcutouttheengineat4600RPMifthepropellerleavesthe
water.Donotoverrevyourenginehigherthan4200whenthepropellerisoutofthewater.Donotrunthe
marineengineingearoutofthewaterathighspeedsforlongerthanthreeminuteswhichcancauseexcessive
heatanddamagetothepropellersealsandbearings.

HowtoStartandStoptheEngine
Tostart–Donotsqueezethethrottle.Pulloutthechokeknoblocatedonthefrontpanelofthe3500model
andonthecarbofthe4000and4400models–seepage4.Turnthekeytotheonpositionandthenstart.
Pushthechokeknobinaftertheengineiswarm.Alwaysstopandstartthemotorintheneutralgear.Tostop
Movethethrottletotheslowposition.Turntheignitionswitchtotheoffposition.

OwnerMaintenance
Werecommendthatyouseeadealerforallmaintenanceandserviceoftheengineandengineparts.Useonly
manufacturerengineparts.

EmissionsControl
Maintenance,replacement,orrepairofemissionscontroldevicesandsystemsmaybeperformedbyany
enginerepairestablishmentorindividual.

However,toobtain“nocharge”emissionscontrolservice,afactoryauthorizedservicedealermustperform
thework.SeeEmissionsWarranty.

First5Hours
ChangeOil(10W30,syntheticorsyntheticblend5W30)
Adjustvalvelashto.004to.006onallmodelengines.Seepage11for
instructions.
Checktransmissionfluidlevel–Synthetic75W90
Greaselubricationpoints(5)
Checkmufflerandrearenginecrankcaseenginebolts.
Every20Hours
Checkengineoil
Greaselubricationpoints(5)
Cleanareaaroundmufflerandcontrols.
Checktransmissionfluidlevel.Synthetic75W90
Every50HoursorAnnually
Cleanorchangeairfilter.
Changeengineoilandfilter.
Checktransmissionfluidlevel.
Every100hoursorAnnually
Changeairfilterandairfilterprecleaner
Replacesparkplugs.
Checkmuffler,replaceifcracked.


9
Cleancoolingfinslocatedinandaroundtheheadandmufflerarea.
Checkvalvelash(.004to.006)
Every200hours
Changetransmissiongearlube.(Mobil75W90Synthetic)

Greasing
Locatethefive(5)greasefittings–threeare
locatedonthefrontandcenterhorizontal
swivelsandoneontheverticalswivel.One
isonthebacklowershifthandle.Grease
usingmarinegradegrease.Alsogreasethe
throttlecableends.

Alsogreasetheshifthandlegreasefitting
locatedonthebottomoftheshifthandleand
greasetheshifthandleslideandpinassembly.

ChangingTransmissionOil
UseFullSynthetic75W90
outboardlowerunitgearlube.
Withtheenginesittinglevel,
removethewindowplug(brass
siteglassfitting),thenremovethe
lowerunitfillplugtodrainoil.Fill
thetransmissiontothebottomof
thewindowplughole.Securely
seatbothlowerunitdrainplugand
siteglassfitting.
Checkevery10hours.

TRANSMISSIONOILLEVELMUSTBEVISIBLETHROUGHWINDOWPLUG
CarburetorAdjustment
Nevermakeadjustmentstothecarburetor.Thecarburetorwassetatthefactorytooperateefficientlyunder
mostconditions.However,ifadjustmentisnecessary,seeaMudBuddyauthorizeddealerforservice.

NeutralMicroSwitch
Theneutralswitchprovidesingearprotectionasrequired
bytheU.S.Guard.Themicroswitchislocatedunderthe
engineandisaccessedbyremovingthemufflerandrear
transmissionaccessplate.

Thespringarmonthemicroswitchisadjustablesothatit
allowstheenginetobestartedintheneutralgearonly.If
theswitchisdamagedorisoutofadjustmenttheengine
maynotstartinneutralormaystartingear.

Toadjust,placetheengineingearandbendthearm
slightlysothatthemicroswitchturnsonasthecam
rotateswhileshiftingintoneutral.Thereisanaudible
clickintheswitchwhenitturnsonthestartcircuit.Testtheshiftandstartprocedureseveraltimestoensure
theenginestarts.Seetheemergencystartingprocedureinstructionsheetincludedwithyourquickstart
guidetobypassthestartingearprotectionifthereisamicroswitchfailureinthefield.



10
HowtoAdjustValveLash

SettingValveLashorValveClearanceisimportant
andshouldbecheckedafterthefirst10hoursof
running.Ifthevalvelashisnotsettospecifications,
thevalveswillnotopenandcloseatthecorrecttime,
whichwillcausepowerlossandpossibleheadand
enginedamage.Youwillnotgetthebest
performancefromyourmotorifthevalvelashisnot
setcorrectly.The36,44,and50modelvalvelash
settingis0.004to0.006.

Setthevalvesonacoldengine,removeyourvalve
covers(10mmwrench),sparkplugs,andengagethe
clutch(ifyouareturningtheproptoturnthecrank).Turnthecrankshaft/propcounterclockwiseuntilyou
seethevalvesopeningandclosing.Aftertheexhaustvalveclosesputyourfingeroverthesparkplughole.
Whenyoufeelaircomingout(compressionstroke)thenturnslowly.Lookinthesparkplugholewitha
flashlightandturntheshaftuntilyouseethepistonrisetoitsmaxpoint.Turnitjustalittlebitmoretillit
drops¼”andthensetthevalveclearance(thisis¼”pastTopDeadCenterTDC).

Useafeelergaugetocheck/settheclearanceat.004to.006.Theyareavailableatanyautopartsstores.
Loosenthe13mmnutontherockeradjusterontherockerarmanduseaTorxT40driverormetricAllen
wrench(dependingonyouradjustertype)toadjusttheclearance.Thefeelergaugeshouldmovebetweenthe
valveandtherockerarmwithresistance(likeslicingastickofcoolbutterwithaknife).Oncetherockerarm
clearanceissetatthecorrectclearance,holdtheadjusterandtightenthe13mmnut.Rechecktheclearanceto
ensureyoudidn'tmoveitwhiletightening(itmaytakeafewtriestogetitright).Nowchecktheothervalve
onthishead.Thenmovetotheotherhadandrockersarmsbyrepeatingtheprocessbyensuringthepistonis
inthecorrectpositionpriortoadjustingthevalves.Torquespecs:ValveCover70in.lbs.(8Nm),Rocker
ArmAdjusterLockNut70in.lbs.(8Nm).Recheckvalveclearanceafter10hoursandthenyearly.

Warning:Makesurethepushrodisseatedintherockerarmcup.Ifnot,thiswillcausesevereengine
damageandisnotcoveredunderwarranty.
Noteyoumayreusethevalvecovergaskets,ifyoureinstallthecoversandseeoilleakingafterrunning,
orderandinstallnewgaskets

HowtoReplacetheSparkPlug
Checkthegapwithawiregauge.Ifnecessary,resetthegapto.032to.035.Installandtightenthesparkplug
totherecommendedtorque.

Specifications
SparkPlugGap
.032to.035in
SparkPlugTorque
160inchpounds
HeadValves
.004.006clearance

InspectMuffler
Removeaccumulateddebrisfrommufflerareaandcylinderarea.Inspectthemufflerforcracks,corrosion
andotherdamage.Ifdamaged,installareplacementmuffler.

HowtoChangetheOil
Usedoilisahazardouswasteproductandmustbedisposedofproperly.Donotdiscardwithhousehold
waste.Checkwithyourlocalauthorities,servicecenter.ordealerforsafedisposal/recyclingfacilities.

RemoveOil
Withtheengineoffbutstillwarm,disconnectthesparkplugwireandkeepitawayfromthesparkplug.


11
Removetheoildrainplug.
Draintheoilintoanapprovedcontainer.
Aftertheoilhasbeendrained,replacethedrainplugandsparkplugwires.

ChangetheOilFilter
Allmodelsareequippedwithanoilfilter.Formaintenanceintervals,seethemaintenancechart.
Draintheoilfromtheengine.
Removetheoilfilter.
Beforeinstallingthenewfilter,prelubricatethefiltergasketring.
Installthefilterbyhand.
Addoiltothefullmarkonthedipstick.
Startandruntheengine.Checktheoilfilterforleaks.Againchecktheoillevel.

ServicetheAirFilter
Notice:Donotusepressurizedairorsolventstocleantheairfilter.
Removetheprecleanerandairfilter.Replacethefilterorprecleanerifdamaged.
Toloosendebris,gentlytaptheaircleaneronahardsurface.
Washtheairfilterandprecleanerwithhouseholddetergent.
Drythefilterandprecleaner.

HowtoCleantheAirCoolingSystem
Notice:Donotusewatertocleantheengine.Watercouldcontaminatethefuelsystem.Useabrush
ordryclothtocleantheengine.

Thisisanaircooledengine.Dirtordebriscanrestrictairflowandcausetheenginetooverheatresultingin
poorperformanceandshortenedenginelife.

Useabrushordryclothtoremovedebrisfromtheintakeguard,cylinderheadsandmufflerarea.Inspectand
cleanthecoolingfins.Loosenthetwofrontpanelscrewsandcleantheareaunderthepanel.

HowtoReplacetheFuelFilter
Useplierstosqueezethetabsonthefuelfilterclamps.Slidetheclampsawayfromthefilter.Carefully
removethefuelfilterandproperlydisposeofanyleakingfuel.Checkthefuellineforanycracksorleaks.
Replaceifnecessary.Replacethefuelfilterwithanoriginalequipmentfuelfilter.Securethefuelfilterwith
thehoseclamps.

StorageFuelSystem
Fuelcanbecomestalewhenstoredover30days.Stalefuelcausesacidandgumdepositstoforminthefuel
systemandessentialcarburetorparts.Tokeepthefuelfresh,useafueltreatmentandstabilizer,availableat
mostautomotivestores.Avoidgasolinewithethanol.

Thereisnoneedtodraingasolinefromtheengineifafuelstabilizerisaddedaccordingtoinstructions.Run
theengine2minutesafteraddingthestabilizertothefueltank.

Ifstoredlongerthan30days,thecylindersshouldbeprotectedwithacylinderfoggingavailablefrommarine
storesbyinjectingthefoginthecylindersthroughthesparkplugholes.Cylindersthatbecomecorrodedwill
losecompressionandvoidtheemissionswarranty.

Covertheenginefromrainandsnowtopreventcorrosionandwaterfromenteringtheexhaustoutlet.


12

Ifgasolineintheenginehasnotbeentreatedwithastabilizer,itmustbedrainedintoanapprovedcontainer.
Runtheengineuntilitstopsfromlackoffuel.

CommonServicePartsandSuggestedReplacementPeriod

AirFilter100Hours  
AirFilterModels4000and4400100Hours
FuelFilter100Hours
OilFilter50Hours
Muffler–100hours
SparkPlug100hours



BOSS
SPORTHWARRANTY
Warranty:
OneYear–FrameandDriveallModels
ThreeYears–EmissionRelatedSystems
ThreeYears–ModelH3500andH3700EFIEngineandExhaust
OneYear–ModelH4400Engine&Exhaust

Warning–PropellerBalance
Abadlyworn,damagedoroutofbalancepropellercancauseseveredamagetothedriveandengine.
Abadpropellerwillcausesignificantvibrationinthehandleandlowerskeg.Damagecausedbyabad
propellerisnotcoveredunderourwarranty.


Manufacturer’sEmissionsWarrantyCoverage
Ifanyemissionrelatedpartonyourengineisdefective,thepartwillberepairedorreplacedbyBriggsand
StrattonandBOSSDRIVES.

Owner’sWarrantyResponsibilities
Astheengineowner,youareresponsiblefortheperformanceoftherequiredmaintenancelistedinyour
owner’manual.BOSSDRIVESLLCrecommendsthatyouretainallyourreceiptscoveringmaintenanceon
yourengine,butBOSSDRIVESLLCcannotdenywarrantysolelyforthelackofreceiptsorforyourfailureto
ensuretheperformanceofallscheduledmaintenance.

Astheengineowner,youshouldhoweverbeawarethatBOSSDRIVESLLCmaydenywarrantycoverageof
yourmarineengineorapartthathasfailedduetoabuse,neglect,impropermaintenanceorunapproved
modifications.

YouareresponsibleforpresentingyourenginetoaBOSSDRIVESLLCServiceDealerassoonasaproblem
exists.Thewarrantyrepairsshouldbecompletedinareasonableamountoftime.Ifyouhaveanyquestions
regardingyourwarrantyrightsandresponsibilities,youshouldcontactaBOSSDRIVESLLCService
Representativeat1844267BOSS

BOSSDRIVESLLCEmissionsControlWarrantyProvisions

ThefollowingarespecificprovisionsrelativetoyourEmissionsControlWarrantyCoverage.Itisinaddition
totheBOSSDRIVESLLCenginewarrantyfornonregulatedenginesfoundintheOperator’sManual.


13

1.WarrantedEmissionParts
Coverageunderthiswarrantyextendsonlytothepartslistedbelow(theemissionscontrolsystemsparts)to
theextentthesepartswerepresentontheBOSSDRIVESLLCengine.

a.FuelMeteringSystem
Coldstartenrichmentsystem(softchoke)
Carburetorandinternalparts
Fuelpump
Fuelline,fuellinefittings,clamps

b.Airinductionsystem
Aircleaner
Intakemanifold
Purgeandventline

c.IgnitionSystem
Sparkplug(s)andmagnetoignitionsystem

d.Exhaustsystem
Exhaustmanifold

e.Miscellaneousitemsusedintheabovesystems
Connectorsandassemblies

2.LengthofCoverage
Foraperiodofthreeyearsfromdateoforiginalpurchase,Briggs&StrattonandBOSSDRIVES,LLCwarrants
totheinitialownerandeachsubsequentpurchaserthattheengineisfreefromemissiondefectsinmaterials
andworkmanshipthatcouldcausethefailureofthewarrantypart,andthatitisidenticalinallmaterial
respectstotheenginedescribedinthemanufacturer’sapplicationforcertification.Thewarrantyperiod
beginsonthedatetheengineisoriginallypurchased.

Thewarrantyonemissionsrelatedpartsisasfollows:
AnywarrantedpartthatisnotscheduledforreplacementasrequiredmaintenanceintheOwner’sManual
supplied,iswarrantedforthewarrantyperiodstatedabove.Ifanysuchpartfailsduringtheperiodof
warrantycoverage,thepartwillberepairedorreplacedbyBOSSDRIVESLLCatnochargetotheowner.Any
suchpartrepairedorreplacedunderthewarrantywillbewarrantedfortheremainingwarrantyperiod.
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AnywarrantedpartthatisscheduledforreplacementasrequiredmaintenanceintheOwner’sManual
supplied,iswarrantedfortheperiodtothefirstscheduledreplacementpointforthatpart.Ifthepartfails
priortothefirstscheduledreplacement,thepartwillberepairedorreplacedbyBOSSDRIVES,LLCatno
chargetotheowner.Anysuchpartrepairedorreplacedunderthewarrantywillbewarrantedforthe
remainderofthewarrantyperiodpriortothefirstscheduledreplacementpointforthatpart.
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Addonormodifiedpartsmaynotbeused.Theuseofanynonexemptedaddonormodifiedpartsbythe
ownerwillbegroundsfordisallowingawarrantyclaim.Themanufacturerwillnotbeliabletowarrant
failuresofwarrantedpartscausedbytheuseofanonexemptedaddonormodifiedpart.
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3.ConsequentialCoverage
Coverageshallextendtothefailureofanyenginecomponentscausedbythefailureofanywarranted
emissionspart.
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4.ClaimsandCoverageExclusions
WarrantyclaimsshallbefiledaccordingtotheprovisionsoftheBOSSDRIVESLLCenginewarrantypolicy.
WarrantycoveragedoesapplytofailuresofemissionpartsthatarenotoriginalequipmentBOSSDRIVESLLC
partsortopartsthatfailduetoabuse,neglect,orimpropermaintenanceassetforthintheBOSSDRIVES,LLC
enginewarrantypolicy.BOSSDRIVESLLCisnotliableforwarrantycoverageoffailurestoemissionsparts
causedbytheuseofaddonormodifiedparts.

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14
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5.HighAltitude
Model4000,4400,and5000enginesareequippedwithanonadjustableMikuniHSR42carburetor.This
engineisnotrecommendedforaltitudeuseof4000feet(1219meters)orabove.Operationofengineabove
4000feetwillcausedamagetoengineandvoidenginewarranty.Contactyourdealerifyouhavequestions.
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6. EmissionsLabel
Lookforrelevantemissions,dateofmanufacture,enginefamilyandthedurabilityperiodonyourengine
emissionslabellocatedonthecoversideofyourBOSSDRIVESLLCengine.
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ContactInformation

CONTACTYOURLOCALBOSSDRIVESDEALER

www.bossdrives.com
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