Yamaha DT125E 1977 Manual de usuario

YAMAHA

DT125E/DT175E

OWNER'SMANUAL

2A6-28199-10

IMPORTANT:PLEASEREADTHISMANUALCAREFULLYANDCOM-

PLETELYBEFOREOPERATINGTHISVEHICLE.

Particularlyimportantinformationisdistinguishedinthismanualbythe

fol-

lowingnotations:

NOTE:

A NOTEprovideskeyinformationtomakeprocedures

easierorclearer.

CAUTION:

A CAUTIONindicatesspecialproceduresthatmustbe

fol-

lowedtoavoiddamagetothemachine.

WARNING:A WARNINGindicatesspecialproceduresthatmustbe

followedtoavoidinjurytoa machineoperatororperson

inspectingorrepairingthemachine.

DT125E/DT175EOWNER'SMANUAL

2ND.

PRINTING,FEBRUALY1977

ALLRIGHTSRESERVED,

BYYAMAHAMOTORCOMPANY

LIMITED,JAPAN

PRINTEDINJAPAN

P/NLIT-11626-00-70

INTRODUCTION

Congratulationsonyourpurchaseofthe

YamahaDT125E/DT175E.Thismodelrepre-

sentstheproductofmanyyearsofYamaha

experienceintheproductionoffinesporting,

touring,

andpace-settingracingmachines.

Youcannowappreciatethehighdegreesof

craftsmanshipandreliabilitythathavemade

Yamahaa leaderinthesefields.

PLEASEREADTHISMANUALCAREFU-

LLYANDCOMPLETELYBEFOREOPERA-

TINGYOURNEWMACHINE.Thismanual

willprovideyouwitha goodbasicunder-

standingofthefeatures,operation,andbasic

maintenanceandinspectionitemsofthis

vehicle.Ifyouhaveanyquestionsregarding

theoperationormaintenanceofyourma-

chine,

pleaseconsultyourYamahadealer.

NOTICE:Somedatainthismanualmaybe-

comeoutdatedduetoimprovementsmadeto

thismodelinthefuture.Ifthereisanyques-

tionyouhaveregardingthismanualoryour

machine,pleaseconsultyourYamahadealer.

SERVICEDEPT.

INTERNATIONALDIVISION

YAMAHAMOTORCOMPANY,LTD.

CONTENTS

PAGE

NOMENCLATURE1

MACHINEIDENTIFICATION2

CONTROLFUNCTIONS3

PRE-OPERATIONCHECKS10

OPERATIONANDIMPORTANT

RIDINGPOINTS12

PERIODICMAINTENANCEAND

MINORREPAIR18

CLEANINGANDSTORAGE45

MISCELLANEOUS47

WARRANTYINFORMATION49

SPECIFICATIONS51

NOMENCLATURE

(6)(9

RIGHTSIDE

®(16)

INSTRUMENTS

10.

Taillight

Muffler

Kickcrank

Headlight

Frontfender

Frontwheel

Brakepedal

Footrest

Frontfork

Fueltank

11.

12.

13.

14.

15.

Rearwheel

Sidestand

Changepedal

Clutchlever

Speedometer

16.

Tachometer

17.

Brakelever

18.

Throttlegrip

19.

Mainswitch

20.

Oiltank

-1-

MACHINE

IDENTIFICATION

Frameserialnumber

Theframeserialnumberisstampedonthe

rightsideofthesteeringheadstock.

Frameserialnumber

Engineserialnumber

Theengineserialnumberisstampedintothe

raisedpartoftherightrearsectionoftheen-

gine.

NOTE:

Thefirstthreedigitsofthesenumbersarefor

modelidentifications;theremainingdigits

aretheunitproductionnumber.Theengine

andframeserialnumbersareusuallyidentical.

CONTROLFUNCTIONS

Mainswitch

Accordingtothemainkeyposition,the

ignitionandlightingsystemscanbeusedas

follows:

Key

position

OFF

Description

Enginecannotbestarted.

Lightsandhorncannotbe

operated.

Enginecan bestarted.

Lightsandhorncanbe

operated.

.Key

removal

Possible

Notpossible

Hendlebarswitches

Thehandlebarswitchesarelocatednearthe

rightandlefthandlegripsandareusedfor

thefollowingfunctions:

"ENGINESTOP"switch

Makesurethattheenginestopswitchis

turnedto"RUN"position.Theengine

switchhasbeenequippedtoensuresafetyin

anemergencysuchaswhenthemotorcycleis

upsetortroubletakes placeinthethrottle

system.

Theenginewillnotstartorrunwhen

theenginestopswitchisturnedto"OFF".

"ENGINESTOP"switch

"LIGHTS"switch

Turnthelightswitchtothe"ON"position

toturnontheheadlightandthetaillight.

"LIGHTS"switch(dimmer)

Turntothe"HI"positionforthehighbeam

andtothe"LO"positionforthelowbeam.

"LIGHTS"switch3."HORN"switch

"LIGHTS"switch(dimmer)4."TURN"switch

"HORN"

switch

Pressbuttontosoundthehorn.

"TURN"

switch

Thisisa three-wayswitch:thecenterposition

isoff;turntothe"L" positionfortheleft

flasherandtothe"R"positionfortheright

flasher.

Indicatorlights

"TURN"

indicatorlight(orange):

Thislightflasheswheneitherturnin-

dicatorisON.

"NEUTRAL"light(green):

Thislightcomesonwhenthetransmission

isinneutral.

"HIGHBEAM"indicatorlight(blue):

Thislightcomesonwhentheheadlight

highbeamisused.

"OIL"cautionlight4."TURN"indicatorlight

"NEUTRAL"light

3."HIGHBEAM"indicatorlight

"OIL"

cautionlight(red):

Thelightcomesonwhenthereislittleoil

intheoiltankthuswarningtherider.The

ridercancheckthecircuitbyputtingthe

machineinneutral.Boththeneutrallight

andtheoilcautionlightshouldcomeon.

NOTE:

Iftheoilcautionlightwillnotlightupduring

thistest,haveyourYamahadealercheckit.

Ofcourse,checktheoillevelfirst.

CAUTION:

Donotrunthemachineuntil

youknownthemachinehasenoughoil.

Mainswitch"ON"

Oilcautionlight

doesnotcomeon

Disconnectedcircuit,

short-ciruit,faulty

cautionlightbulbetc.

Oilcautionlight

comeson

Motorcycleingearl

AskYamahadealerOilcautionlight

toinspectcomeson

Oilcautionlight

doesnotcomeon Supplyengineoil

Speedometer

Theodometerandtripodometerarebuilt

intothespeedometer.Thetripodometercan

beresetto"0"byturningtheresetknob.

Resetknob3.,Odometer5.Tachometer

Tripodometer4.Speedometerg

p;ecj

zone

Tachometer

Thetachometerisprovidedsotheridercan

keepenginerevolutions(rpm)withintheideal

powerrange.

CAUTION:

Donotoperateintheredzone.

RedZone:8,000rpmandabove.

Fuelpetcock

Thefuelpetcocksupplysfuelfromthetank

tothecarburetorwhilefilteringthe

fuel.

Thefuelpetcockhasthreepositions:

OFF:

Withtheleverinthispositionfuelwill

notflow.Alwaysreturntheleverto

thispositionwhentheengineisnot

running.

ON:

Withtheleverinthispositionfuel

flowstothecarburetor.Normalriding

isdonewiththeleverinthisposition.

RES:

Thisindicates"RESERVE".Ifyourun

outoffuelwhileriding,movethelever

tothisposition.THEN,FILLTHE

TANKATTHEFIRSTOPPORTU-

NITY.

Starterknob

When

cold,

theenginerequiresa richerfuel

mixtureforstarting.A separatestartercircuit,

whichiscontrolledbythestarterknob,sup-

pliesthismixture.

Pulltheknobouttoopenthecircuitfor

starting.

Whentheenginehaswarmeduppush

theknobintoclosethecircuit.

Starterknob

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