2003 YAMAHA TTR125 oil

4 - 45
ENGCLUTCH AND PRIMARY DRIVEN GEAR
Push rod
1. Inspect:
Push rod 1 1
Ball 2
Wear/damage/bend → Replace.
Primary drive gear
1. Inspect:
Primary drive gear
Wear/damage → Replace.
EC495000
ASSEMBLY AND INSTALLATION
Push lever
1. Install:
Push lever 1
NOTE:
Apply the lithium soap base grease on the oil
seal lip.
Apply the engine oil on the push lever.
Primary drive gear
1. Install:
Straight key
Primary drive gear 1
Washer 2
Nut (primary drive gear) 3
Primary driven gear 4
NOTE:
Install the primary drive gear with the stamp
a facing out.
Place a folded rag or aluminum plate 5
between the teeth of the primary drive gear
and primary driven gear.
T R..70 Nm (7.0 m · kg, 50 ft · lb)

4 - 46
ENGCLUTCH AND PRIMARY DRIVEN GEAR
Clutch
1. Install:
Conical spring washer 1
Thrust plate 2
Primary driven gear 3
Thrust plate 4
Clutch boss 5
2. Install:
Lock washer
Nut (clutch boss) 1
NOTE:
Use the clutch holding tool 2 to hold the clutch
boss.
ÅFor USA and CDN
ıExcept for USA and CDN
3. Bend:
Lock washer tab
Clutch holding tool:
YM-91042/90890-04086
New
T R..60 Nm (6.0 m · kg, 43 ft · lb)
Å
ı
4. Install:
Friction plate 1
Clutch plate 2
NOTE:
Install the clutch plates and friction plates
alternately on the clutch boss, starting with a
friction plate and ending with a friction plate.
Apply the engine oil on the friction plates and
clutch plates.
Be sure to install a clutch plate with projec-
tion a offset approximately 90˚ from previ-
ous plates projection. Continue this
procedure in a clockwise direction until all
clutch plates are installed.

4 - 47
ENGCLUTCH AND PRIMARY DRIVEN GEAR
5. Install:
Ball
NOTE:
Apply the engine oil on the ball.
6. Install:
Push rod 1 1
Push plate 2
Washer 3
Nut (push rod 1) 4
7. Install:
Pressure plate 1
Clutch spring 2
Bolt (clutch spring) 3
NOTE:
Align the arrow mark a on the pressure
plate with the punched mark b on the clutch
boss.
Tighten the bolts in stage, using a crisscross
pattern.
T R..6 Nm (0.6 m · kg, 4.3 ft · lb)
8. Check:
Push lever position
Push the push lever assembly in the
arrow direction and make sure that the
mach mark are aligned → adjust.
aMatch mark on the push lever assembly
bMatch mark on the crankcase

4 - 49
ENGOIL PUMP
OIL PUMP
Extent of removal:1 Oil pump removal
Extent of removal Order Part name Q’ty Remarks
OIL PUMP REMOVAL
Preparation for removal Clutch and primary drive gear Refer to “CLUTCH AND PRIMARY
DRIVEN GEAR” section.
1 Rotary filter 1
2 Oil pump drive gear 1
3 Oil pump assembly 1
4 Gasket 1
5Oil strainer
1
1

4 - 50
ENGOIL PUMP
OIL PUMP DISASSEMBLY
Extent of removal:1 Oil pump disassembly
Extent of removal Order Part name Q’ty Remarks
OIL PUMP DISASSEMBLY
1Circlip 1
2Oil pump driven gear 1
3Conical spring washer 1
4Circlip 1
5Washer 1
6Oil pump cover 1
7Pin 2
8Oil pump shaft 1
9Pin 1
0Inner rotor 1
AOuter rotor 1
BOil pump housing 1
1

4 - 51
ENGOIL PUMP
INSPECTION
Oil pump
1. Inspect:
Oil pump drive gear
Oil pump driven gear
Oil pump housing
Oil pump cover
Cracks/wear/damage → Replace.
2. Measure:
Tip clearance Å
(between the inner rotor 1 and the
outer rotor 2)
Side clearance ı
(between the outer rotor 2 and the oil
pump housing 3)
Out of specification → Replace the oil
pump assembly.
Housing and rotor clearance Ç
(between the pump housing 3 and the
rotors 1 2)
Out of specification → Replace the oil
pump assembly.
Tip clearance Å:
0.15 mm (0.0059 in)
: 0.20 mm (0.0079 in)
Side clearance ı:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
: 0.15 mm (0.0059 in)
Housing and rotor clearance Ç:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
: 0.15 mm (0.0059 in)
Rotary filter
1. Inspect:
Rotary filter
Cracks/damage → Replace.

4 - 52
ENGOIL PUMP
Oil strainer
1. Inspect:
Oil strainer
Cracks/damage → Replace.
Contamination → Clean the flushing oil.
ASSEMBLY AND INSTALLATION
Oil pump
1. Install:
Oil pump housing 1
Outer rotor 2
Inner rotor 3
Pin 4
Oil pump shaft 5
Pin 6
Oil pump cover 7
Washer 8
Circlip 9
Conical spring washer 0
Oil pump driven gear A
Circlip B
Screws C
NOTE:
Apply engine oil onto the outer rotor, inner
rotor and oil pump shaft.
Install the conical spring washer in the direc-
tion as shown.
2. Install:
Oil strainer
Gasket
Oil pump assembly
Screws (oil pump assembly)
NOTE:
Apply engine oil onto the crankcase oil pas-
sage and oil pump assembly.
New
New
T R..5 Nm (0.5 m · kg, 3.6 ft · lb)
New
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)
3. Install:
Oil pump drive gear 1
Rotary filter 2
NOTE:
Install the oil pump drive gear with its groove
a facing the engine.
Install the rotary filter with the dog b facing
out.
Align the rotary filter dog b with groove c of
the crankshaft.

ENG
4 - 53
AXE DE KICK ET ARBRE DE SÉLECTEUR
KICKSTARTERWELLE UND SCHALTWELLE
KICKSTARTERWELLE UND SCHALTWELLE
KICKSTARTERWELLE UND SCHALTWELLE
Demontage-Arbeiten:1 Kickstarterwelle demontieren2 Schaltwelle demontieren
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerkungen
KICKSTARTERWELLE UND
SCHALTWELLE DEMONTIE-
REN
Vorbereitung für den
AusbauSchalthebel-Gelenk Siehe unter “MOTOR AUSBAUEN”.
Kupplung Siehe unter “KUPPLUNG UND PRI-
MÄRABTRIEBSZAHNRAD”.
1 Kickstarterwelle komplett 1 Siehe unter “DEMONTAGEPUNKTE”.
2 Sicherungsring 1
3 Unterlegscheibe 1
4 Kickstarter-Ritzel 1
5 Unterlegscheibe 1
6 Sicherungsring 1
7 Schaltwelle 1
8 Sicherungsring 1
9Rückholfeder 1
10 Schraube (Kickstarter-Anschlag) 1
11 Kickstarter-Anschlag 1
12 Feder 1
13 Kickstarter-Zahnsegment 1 Siehe unter “DEMONTAGEPUNKTE”.
1
2
AXE DE KICK ET ARBRE DE SÉLECTEUR
AXE DE KICK ET ARBRE DE SÉLECTEUR
Déposes à effectuer:1 Dépose de l’axe de kick2 Dépose de l’arbre de sélecteur
Déposes à effectuer Ordre Nom de pièce QtéRemarques
DÉPOSE DE L’AXE DE KICK
ET DE L’ARBRE DE SÉLEC-
TEUR
Préparation à la dépose Tige de pédale de sélecteur Se reporter à “DÉPOSE DU MOTEUR”.
Embrayage Se reporter à “EMBRAYAGE ET PIGNON
MENÉ PRIMAIRE”.
1 Axe de kick complet 1 Se reporter à “PIÈCES À DÉPOSER”.
2 Circlip 1
3 Rondelle 1
4 Pignon libre de kick 1
5 Rondelle 1
6 Circlip 1
7 Arbre de sélecteur 1
8 Circlip 1
9 Ressort de torsion 1
10 Boulon (doigt de verrouillage) 1
11 Doigt de verrouillage 1
12 Ressort 1
13Étoile de sélection 1 Se reporter à “PIÈCES À DÉPOSER”.
1
2