2007 YAMAHA TTR125 oil

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ENG
EC4L0000
CDI MAGNETO (TT-R125/TT-R125LW)
Extent of removal:1 CDI magneto removal
Extent of removal Order Part name Q’ty Remarks
CDI MAGNETO REMOVAL
Preparation for removal Seat and fuel tank Refer to “SAET, FUEL TANK AND SIDE
COVERS” section.
Drain the engine oil Refer to “ENGINE OIL REPLACEMENT”
section in the CHAPTER 3.
Drive sprocket cover Refer to “ENGINE REMOVAL” section.
1 CDI magneto lead 1
2 Left crankcase cover 1
3 Nut (rotor) 1
Use special tool.
Refer to “REMOVAL POINTS”.
4 Rotor 1
5 Woodruff key 1
6 Pickup coil 1
7 Lead guide 1
8Stator
1
1
CDI MAGNETO (TT-R125/TT-R125LW)

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ENG
REMOVAL POINTS
Rotor
1. Remove:
Nut (rotor) 1
Plain washer 2
Use the sheave holder 3.
2. Remove:
Rotor 1
Use the flywheel puller 2.
Sheave holder:
YS-1880-A/90890-01701
Flywheel puller:
YU-33270-B/90890-01362
EC4L4000
INSPECTION
EC4L4101
CDI magneto
1. Inspect:
Rotor inner surface a
Stator outer surface b
Damage → Inspect the crankshaft
runout and crankshaft bearing.
If necessary, replace CDI magneto and/
or stator.
EC4L4200
Woodruff key
1. Inspect:
Woodruff key 1
Damage → Replace.
EC4L5000
ASSEMBLY AND INSTALLATION
CDI magneto
1. Install:
Stator 1
Bolt (stator)
Lead guide
Screw (lead guide) 2
Pickup coil 3
Bolt (pickup coil)
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)LT
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)LT
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)LT
CDI MAGNETO (TT-R125/TT-R125LW)

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ENG
CDI MAGNETO AND STARTER CLUTCH
(TT-R125E/TT-R125LWE)
CDI MAGNETO AND STARTER CLUTCH (TT-R125E/TT-R125LWE)
Extent of removal:1 Pickup coil/stator removal2 Starter clutch/wheel gear removal
Extent of removal Order Part name Q’ty Remarks
CDI MAGNETO AND STATOR
REMOVAL
Preparation for removal Fuel tank
1 CDI magneto lead 1
2 Neutral switch lead 1
3 Left crankcase cover 1
4 Nut (rotor) 1
Use special tool.
Refer to “REMOVAL POINTS”.
5 Rotor 1
6 Starter clutch 1
7 Woodruff key 1
8 Starter wheel gear 1
9 Plain washer 1
10 Plate (starter idle gear) 1
11 Starter idle gear 1
12 Lead guide 1
13Pickup coil/stator assembly
1
1
2
1
1

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ENG
CDI MAGNETO AND STARTER CLUTCH
(TT-R125E/TT-R125LWE)
3. Check:
Starter clutch operation
Install the starter clutch drive gear 1 onto
the starter clutch 2 and hold the starter
clutch.
When turning the starter clutch drive gear
counterclockwise ı, the starter clutch and
the starter clutch drive gear should
engage. If the starter clutch drive gear and
starter clutch do not engage, the starter
clutch is faulty and must be replaced.
When turning the starter clutch drive gear
clockwise Å, it should turn freely.
If the starter clutch drive gear does not
turn freely, the starter clutch is faulty and
must be replaced.
Å
ı
1
2
EC4L5000
ASSEMBLY AND INSTALLATION
CDI magneto
1. Install:
Stator 1
Bolt (stator)
Lead guide
Screw (lead guide) 2
Pickup coil 3
Bolt (pickup coil)
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)LT
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)LT
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)LT
2. Install:
Stater idle gear 1
Plate 2
Bolt 3
Washer 4
NOTE:
Apply the engine oil on the starter idle gear
inner circumference.
4
1
2
3
ET R..7 Nm (0.7 m · kg, 5.1 ft · lb)

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ENG
3. Install the starter clutch 1 on the rotor 2.
NOTE:
Install the starter clutch with its plate portion
a facing the rotor.
Insert the plate portion of the starter clutch
so that it is flush with the surface of contact
b with the rotor.
12 b
a
4. Tighten:
Bolt (starter clutch)
NOTE:
Caulk a the end of the starter clutch holding
bolt near its outer diameter to serve as a stop-
per.
a
T R..30 Nm (3.0 m · kg, 22 ft · lb)
5. Install:
Starter wheel gear 1
Woodruff key 2
Rotor 3
NOTE:
Clean the tapered portion of the crankshaft
and the magneto hub.
When installing the magneto rotor, make
sure the woodruff key is properly seated in
the key way of the crankshaft.
Apply the engine oil on the starter wheel
gear inner circumference.
6. Install:
Plain washer 1
Nut (magneto) 2
NOTE:
Tighten the nut (magneto) while holding the
magneto with a sheave holder 3.
Sheave holder:
YS-1880-A/90890-01701
2
1
3
E
T R..80 Nm (8.0 m · kg, 58 ft · lb)
CDI MAGNETO AND STARTER CLUTCH
(TT-R125E/TT-R125LWE)

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ENGENGINE REMOVAL
ENGINE REMOVAL
Extent of removal:1 Engine removal
Extent of removal Order Part name Q’ty Remarks
ENGINE REMOVAL
Preparation for removal Hold the machine by placing the
suitable stand under the frame.
Seat, fuel tank and side covers Refer to “SEAT, FUEL TANK AND SIDE
COVERS” section.
Carburetor Refer to “CARBURETOR” section.
Muffler Refer to “MUFFLER” section.
Clutch cable Disconnect at engine side.
Spark plug cap
Disconnect the CDI magneto
lead.
Disconnect the neutral switch lead
for the TT-R125E/TT-R125LWE.
Starter motor for the TT-R125E/
TT-R125LWERefer to “ELECTRIC STARTING SYS-
TEM” section in the CHAPTER 6 for the
TT-R125E/TT-R125LWE.
Drain the engine oil. Refer to “ENGINE OIL REPLACEMENT”
section in the CHAPTER 3.

ENG
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CARTER-MOTEUR, VILEBREQUIN ET BALANCIER
KURBELGEHÄUSE, KURBELWELLE UND AUSGLEICHSWELLE
KURBELGEHÄUSE, KURBELWELLE UND AUSGLEICHSWELLE
Demontage-Arbeiten:1 Kurbelgehäuse teilen2 Ausgleichswelle demontieren
3 Kurbelwelle demontieren
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen
KURBELGEHÄUSE, KURBEL-
WELLE UND AUSGLEICHS-
WELLE DEMONTIEREN
Vorbereitung für den
AusbauMotor Siehe unter “MOTOR AUSBAUEN”.
Kolben Siehe unter “ZYLINDER UND KOLBEN”.
Primärantriebszahnrad Siehe unter “KUPPLUNG UND PRI-
MÄRABTRIEBSZAHNRAD”.
Kickstarterwelle komplett
Siehe unter “KICKSTARTERWELLE
UND SCHALTWELLE”.
Kickstarter-Zahnsegment
Rotor für die TT-R125/
TT-R125LW
(Rotor und Starterkupplung für
die TT-R125E/TT-R125LWE.)Siehe unter “CDI-MAGNETZÜNDER” für
die TT-R125/TT-R125LW.
(Siehe unter “CDI-MAGNETZÜNDER
UND STARTERKUPPLUNG” für die
TT-R125E/TT-R125LWE.)
CARTER-MOTEUR, VILEBREQUIN ET BALANCIER
Organisation de la dépose:1 Séparation du carter-moteur2 Dépose du balancier
3 Dépose du vilebrequin
Organisation de la dépose Ordre Nom de pièce QtéRemarques
DÉPOSE DU CARTER-
MOTEUR, DU VILEBREQUIN
ET DU BALANCIER
Préparation à la dépose Moteur Se reporter à la section “DÉPOSE DU
MOTEUR”.
Piston Se reporter à la section “CYLINDRE ET
PISTON”.
Pignon menant primaire Se reporter à la section “EMBRAYAGE ET
PIGNON MENÉ PRIMAIRE”.
Axe de kick complet
Se reporter à la section “AXE DE KICK ET
ARBRE DE SÉLECTEUR”.
Étoile de sélection
Rotor pour le modèle
TT-R125/TT-R125LW
(Rotor et rochet de démarrage pour
le TT-R125E/TT-R125LWE.)Pour la TT-R125/TT-R125LW, se reporter à
la section “MAGNÉTO CDI” .
(Pour la TT-R125E/TT-R125LWE, se repor-
ter à la section “MAGNÉTO CDI ET
ROCHET DE DEMARRAGE”.)

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ENGTRANSMISSION, SHIFT CAM AND SHIFT FORK
Transmission
1. Install:
4th pinion gear (22T) 1
3rd pinion gear (19T) 2
2nd pinion gear (18T) 3
5th pinion gear (24T) 4
On main axle 5.
NOTE:
Apply the molybdenum disulfide oil on the
gears’ inner circumference.
Install the 5th pinion gear so that measure-
ment a is 83.25 ~ 83.45 mm (3.278 ~
3.285 in).
2. Install:
2nd wheel gear (32T) 1
5th wheel gear (21T) 2
3rd wheel gear (25T) 3
4th wheel gear (23T) 4
1st wheel gear (37T) 5
On drive axle 6.
NOTE:
Apply the molybdenum disulfide oil on the
gears’ inner circumference.