carb YAMAHA TTR125 2003 Workshop Manual

YAMAHA TTR125 2003 Workshop Manual TTR125 2003 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/51647/w960_51647-0.png YAMAHA TTR125 2003 Workshop Manual

Page 263 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 9
ENG
4. Monter:
Gicleur de ralenti 1
Ajutage de gicleur principal 2
Gicleur principal 3
Siège de pointeau 4
Support de siège de pointeau 5
Rondelle de pointeau 6
5. Monter:
Pointeau 1
F

Page 264 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 10
ENGCARBURETOR
9. Install:
Carburetor top cover 1 
Spring (throttle valve) 2 
Throttle valve 3 
On throttle cable 4. 
NOTE:
While compressing the spring, connect the
throttle cable. 
Carburet

Page 265 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 10
ENG
CARBURATEUR
VERGASER
9. Montieren:
Vergaserdeckel 1 
Feder (Drosselventil) 2 
Drosselventil 3 
(am Gaszug 4)
HINWEIS:
Feder zusammendrücken und Gaszug anschlie-
ßen. 
Vergaser montiere

Page 266 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 11
ENGCARBURETOR
3. Install:
Carburetor top cover 1 
Starter plunger 2 
Air vent hose 3 
Over flow hose 4 
Fuel hose 5 
NOTE:
Align the slit a of the throttle valve with the tab
b of the carb

Page 267 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 11
ENG
3. Monter:
Cache supérieur du carburateur 1
Plongeur de starter 2
Reniflard 3
Flexible de trop-plein 4
Flexible de carburant 5
N.B.:
Aligner la fente a du boisseau et l’onglet b du

Page 268 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 12
ENGCYLINDER HEAD
CYLINDER HEAD
CYLINDER HEAD SIDE COVER AND TAPPET COVER
Extent of removal:1 Cylinder head side cover and tappet cover removal
Extent of removal Order Part name Q’ty Remarks
C

Page 269 of 578

YAMAHA TTR125 2003 Workshop Manual ENG
4 - 12
CULASSE
ZYLINDERKOPF
ZYLINDERKOPF
ZYLINDERKOPFDECKEL UND VENTILDECKEL
Demontage-Arbeiten:1 Zylinderkopfdeckel und Ventildeckel demontieren
Demontage-ArbeitenReihen-
folgeBauteil Anz. Bemerk

Page 274 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 15
ENGCYLINDER HEAD
4. Remove:
Bolt (camshaft sprocket) 1 
Camshaft sprocket 2 
NOTE:
Attach a wire a to the timing chain to prevent
it from falling into the crankcase.
5. Remove:
Bolts (cylind

Page 298 of 578

YAMAHA TTR125 2003 Workshop Manual 4 - 27
ENGVALVES AND VALVE SPRINGS
3. Inspect:
Valve face
Pitting/wear → Grind the face.
Valve stem end
Mushroom shape or diameter larger
than the body of the stem → Replace.
4. Measure:
Margin

Page 316 of 578

YAMAHA TTR125 2003 Workshop Manual  
4 - 36
ENG
 
CYLINDER AND PISTON 
Piston ring 
1. Measure: 
 
Ring side clearance
Use a feeler gauge. 
Out of specification  
→ 
 Replace the pis-
ton and rings as a set.
NOTE:
 
Clean carbon fro