1H1C3-100E1

(

)

YZ125Y1 (1C3H) CANADA

YZ125 (1C3J) EUROPE

YZ125 (1C3K) JAPAN

YZ125Y (1C3L) AUSTRALIA,NEW ZEALAND

YZ125 (1C3L) SOUTH AFRICA

YZ125Y1

YZ125Y/YZ125

PARTS CATALOGUE

©2008 by Yamaha Motor Co., Ltd.

1st edition, May 2008

All rights reserved.

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Co., Ltd.

is expressly prohibited.

Printed in Japan.

FOREWORD

This Parts Catalogue is related to the parts for the model(s) on the cover page. When you are

ordering replacement parts, please refer to this Parts Catalogue and quote both part numbers

and part names correctly.

1.

Modifications or additions which have been made after the issue of the Parts Catalogue

will be announced in the Parts News.

It is advisable that you make the necessary corrections to the Parts Catalogue according

to the Parts News.

2.

Abbreviations

The following abbreviations are used in this Parts Catalogue.

“UR” Use specified parts number.

“UN” Use as many as needed.

“AP” Alternate Parts

“LM” Locally Made (Parts need to be ordered locally)

“F#” Frame No. (Applicable machine No.)

“O/S” Over Size

3.

The number of components for assembly

• Parts, which are to be supplied in an assembly, are listed with a dot (.) in front of the

part name as shown below.

• The numeral appearing to the right of each component part indicates the quantity of

parts for each assembly unit.

4.

Applicable colours of graphics are represented in the “REMARKS” as shown below.

5.

Note that the illustrations for reference in finding parts numbers are not to be used for

assembling. When assembling, please use the applicable service manual.

6.

The asterisk (*) before a reference number indicates modified items after the first edition.

PART NO.

DESCRIPTION

Q’TY

REMARKS

2F5–83310–60

FRONT FLASHER LIGHT ASSY

2

115–83311–60

.BULB (6V–18W)

1

PART NO.

DESCRIPTION

Q’TY

REMARKS

2N4–24110–00–X5

FUEL TANK COMP.

2

MXR

3J1–24240–10

.GRAPHIC, FUEL TANK

1

FOR MXR

FOREWORD

7.

Applicable Serial No.

Engine Serial No.

Frame Serial No.

8.

Applicable Colour Code (The (*) mark shows Model colour.)

Abbreviation

Colour Name

Colour Code

DPBSE(*)

DEEP PURPLISH BLUE SOLID E

0583

MODEL LABEL

(1)

A label called “Model Label” is affixed in the location as indicated in (3) below.

When using this parts catalogue, please be sure to cross–reference the “model code –

production code No.” in the catalogue with the “model code – production code No.” indi-

cated on the Model Label affixed onto the product concerned.

(2)

“Model Label” Indication

(3)

Model Label Affixing Location

(4)

Colouring Information

Model Code

Colouring

Type Code

Colour

Code

Colour Name

Abbrevia-

tion

1C3H

A

0583

DEEP PURPLISH BLUE SOLID E

DPBSE

1C3J

A

0583

DEEP PURPLISH BLUE SOLID E

DPBSE

1C3K

A

0583

DEEP PURPLISH BLUE SOLID E

DPBSE

1C3L

A

0583

DEEP PURPLISH BLUE SOLID E

DPBSE

(5)

Model Code – Production Code Number of Model Listed in This Parts Catalogue

Model

Code

Production

Code No.

Country

(destination)

1C3H

020

CANADA

1C3J

010

FRANCE

GERMANY

ITALY

SPAIN

UNITED KINGDOM

1C3K

010

JAPAN

1C3L

010

AUSTRALIA

NEW ZEALAND

020

SOUTH AFRICA

Model

Code

Production

Code No.

Country

(destination)

CONTENTS

ENGINE

CYLINDER HEAD .................................................................1

GOVERNOR .........................................................................3

CRANKSHAFT & PISTON ....................................................4

WATER PUMP ......................................................................5

RADIATOR & HOSE .............................................................6

INTAKE .................................................................................7

CARBURETOR .....................................................................8

EXHAUST .............................................................................11

CRANKCASE ........................................................................13

CRANKCASE COVER 1 .......................................................14

STARTER ..............................................................................15

CLUTCH ................................................................................16

TRANSMISSION ...................................................................17

SHIFT CAM & FORK .............................................................19

SHIFT SHAFT .......................................................................20

CHASSIS

FRAME ..................................................................................21

FENDER ................................................................................23

SIDE COVER ........................................................................24

REAR ARM ...........................................................................25

REAR SUSPENSION ............................................................27

STEERING ............................................................................29

FRONT FORK .......................................................................30

FUEL TANK ...........................................................................33

SEAT .....................................................................................35

FRONT WHEEL ....................................................................36

FRONT BRAKE CALIPER ....................................................37

REAR WHEEL .......................................................................38

REAR BRAKE CALIPER .......................................................40

STEERING HANDLE & CABLE ............................................41

FRONT MASTER CYLINDER ...............................................42

STAND & FOOTREST ..........................................................43

REAR MASTER CYLINDER .................................................44

GENERATOR ........................................................................45

HANDLE SWITCH & LEVER ................................................46

ELECTRICAL 1 .....................................................................47

ALTERNATE FOR CHASSIS ................................................48

OPTIONAL PARTS 1 ............................................................49

INDEX

NUMERICAL INDEX ............................................................. 50

1

FIG.

1

CYLINDER HEAD

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–11111–10

HEAD, CYLINDER 1

1

1

1

1

2

90116–08027

BOLT, STUD

5

5

5

5

3

90176–08005

NUT, CROWN

5

5

5

5

4

90201–080L8

WASHER, PLATE

5

5

5

5

5

93210–63442

O-RING

1

1

1

1

6

93210–90785

O-RING

1

1

1

1

7

1C3–11311–10

CYLINDER 1

1

1

1

1

8

1C3–11351–00

GASKET, CYLINDER

1

1

1

1

9

90116–08031

BOLT, STUD

2

2

2

2

10

90116–08028

BOLT, STUD

2

2

2

2

11

99590–10114

PIN, DOWEL

2

2

2

2

12

90179–08019

NUT

4

4

4

4

13

94702–00193

PLUG, SPARK (NGK BR9EVX)

1

1

1

94709–00193

PLUG, SPARK (NGK BR-9EVX)

1

14

1C3–1131D–00

VALVE ASSY

1

1

1

1

15

1C3–1132D–00

VALVE ASSY 2

1

1

1

1

16

91312–05012

BOLT

4

4

4

4

17

5HD–1131V–00

SHAFT 1

1

1

1

1

18

4SS–11832–00

LEVER, LINK

1

1

1

1

19

91312–04010

BOLT

1

1

1

1

20

5UN–11395–00

HOLDER

1

1

1

1

21

93104–08040

OIL SEAL

1

1

1

1

22

4SS–1131M–01

COVER

1

1

1

1

23

4JY–11166–00

PIPE, BREATHER 1

1

1

1

1

24

90467–13062

CLIP

1

1

1

1

25

1C3–11354–00

GASKET

1

1

1

1

26

98902–05016

SCREW, BIND

4

4

4

4

2

FIG.

1

CYLINDER HEAD

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

27

90508–16134

SPRING, TORSION

2

2

2

2

28

90387–08785

COLLAR

2

2

2

2

29

1C3–11992–00

HOUSING 2

1

1

1

1

30

1C3–11993–00

GASKET

1

1

1

1

31

97002–05016

BOLT

3

3

3

3

32

92902–05600

WASHER, PLATE

3

3

3

3

33

1C3–11995–00

SEAL, HOUSING

1

1

1

1

3

FIG.

2

GOVERNOR

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

4JY–11915–10

PLATE, THRUST 1

1

1

1

1

2

98502–05012

SCREW, PAN HEAD

1

1

1

1

3

1C3–11990–10

PUSH ROD ASSY

1

1

1

1

4

90387–085E1

COLLAR

1

1

1

1

5

90201–05021

WASHER, PLATE

1

1

1

1

6

97002–05012

BOLT

1

1

1

1

7

93104–08040

OIL SEAL

1

1

1

1

8

3JE–11922–01

FORK, GOVERNOR

1

1

1

1

9

91312–04006

BOLT

2

2

2

2

10

93300–60801

BEARING

2

2

2

2

KOYO

11

5X4–11921–02

SHAFT, GOVERNOR

1

1

1

1

12

5NY–11953–00

GEAR, GOVERNOR

1

1

1

1

13

90501–300A0

SPRING, COMPRESSION

1

1

1

1

14

5CU–11952–00

PLATE

1

1

1

1

15

90201–150U6

WASHER, PLATE

3

3

3

3

16

90387–152F2

COLLAR

1

1

1

1

17

93340–21505

BEARING

2

2

2

2

18

5CU–11912–00

RETAINER, WEIGHT

1

1

1

1

19

5CU–11911–00

RETAINER

1

1

1

1

20

93507–16020

BALL

4

4

4

4

21

93603–14240

PIN, DOWEL

1

1

1

1

22

90387–107T9

COLLAR

1

1

1

1

AP

4

FIG.

3

CRANKSHAFT & PISTON

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–11400–20

CRANKSHAFT ASSY

1

1

1

1

2

1C3–11410–10

.CRANKSHAFT

1

1

1

1

3

1C3–11420–20

.CRANKSHAFT

1

1

1

1

4

1C3–11651–00

.ROD, CONNECTING

1

1

1

1

5

3JD–11681–10

.PIN, CRANK 1

1

1

1

1

6

90209–22326

.WASHER

2

2

2

2

7

93310–52238

.BEARING

1

1

1

1

8

1C3–11631–01–A0

PISTON (STD)

1

1

1

1

UR RED

1C3–11631–01–B0

PISTON (STD)

1

1

1

1

UR ORANGE

1C3–11631–01–C0

PISTON (STD)

1

1

1

1

UR GREEN

1C3–11631–01–D0

PISTON (STD)

1

1

1

1

UR PURPLE

9

5NY–11611–00

RING, PISTON

1

1

1

1

10

1C3–11633–00

PIN, PISTON

1

1

1

1

11

93450–16068

CIRCLIP

2

2

2

2

12

93310–21510

BEARING

1

1

1

1

13

93306–37204

BEARING

2

2

2

2

KOYO

14

93102–20485

OIL SEAL

1

1

1

1

15

93102–22419

OIL SEAL

1

1

1

1

16

90280–03017

KEY, WOODRUFF

1

1

1

1

5

FIG.

4

WATER PUMP

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–12450–00

IMPELLER SHAFT ASSY

1

1

1

1

2

1C3–12453–10

GEAR

1

1

1

1

3

93603–12007

PIN, DOWEL

1

1

1

1

4

90201–08512

WASHER, PLATE

2

2

2

2

5

90387–08032

COLLAR

1

1

1

1

6

93440–07182

CIRCLIP

1

1

1

1

7

93102–08004

OIL SEAL

1

1

1

1

8

93102–08307

OIL SEAL

1

1

1

1

9

93300–60801

BEARING

1

1

1

1

UR KOYO

93300–60814

BEARING

1

1

1

1

UR NMB

10

1C3–12422–00

COVER, HOUSING

1

1

1

1

11

90430–06014

GASKET

1

1

1

1

12

95022–06010

BOLT, FLANGE

1

1

1

1

13

1C3–12428–00

GASKET, HOUSING COVER 2

1

1

1

1

14

93604–10011

PIN, DOWEL

2

2

2

2

15

95022–06065

BOLT, FLANGE

1

1

1

1

16

95022–06025

BOLT, FLANGE

3

3

3

3

6

FIG.

5

RADIATOR & HOSE

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–1240A–00

RADIATOR ASSY

1

1

1

1

2

1C3–12465–00

DAMPER, RADIATOR

1

1

1

1

3

91A20–05065

TUBE, FLEXIBLE VINYL

1

1

1

1

4

90467–090A2

CLIP

1

1

1

1

5

1C3–12461–00

RADIATOR ASSY

1

1

1

1

6

22W–12462–00

CAP, RADIATOR

1

1

1

1

7

1C3–12465–00

DAMPER, RADIATOR

1

1

1

1

8

1C3–12481–00

PIPE 1

1

1

1

1

9

1C3–12482–00

PIPE 2

1

1

1

1

10

1C3–12483–00

PIPE 3

1

1

1

1

11

1C3–12484–00

PIPE 4

1

1

1

1

12

90450–28001

HOSE CLAMP ASSY

2

2

2

2

13

90450–22001

HOSE CLAMP ASSY

4

4

4

4

14

90450–25001

HOSE CLAMP ASSY

2

2

2

2

15

90480–15528

GROMMET

6

6

6

6

16

90387–06065

COLLAR

6

6

6

6

17

90105–06111

BOLT, FLANGE

6

6

6

6

18

90201–06571

WASHER, PLATE

6

6

6

6

19

90105–06118

BOLT, FLANGE

2

2

2

2

7

FIG.

6

INTAKE

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–13610–20

REED VALVE ASSY

1

1

1

1

2

5UN–13613–00

.REED, VALVE

2

2

2

2

3

5MV–13616–10

.STOPPER, REED VALVE

2

2

2

2

4

98502–03006

.SCREW, PAN HEAD

6

6

6

6

5

92902–03100

.WASHER

6

6

6

6

6

1C3–13625–10

.SPACER, REED VALVE

1

1

1

1

7

1C3–13565–00

JOINT, CARBURETOR

1

1

1

1

8

95022–06020

BOLT, FLANGE

4

4

4

4

9

90450–54007

HOSE CLAMP ASSY

1

1

1

1

10

90450–70002

HOSE CLAMP ASSY

1

1

1

1

11

5NY–14401–01

AIR CLEANER CASE ASSY

1

1

1

1

12

1C3–14453–10

JOINT, AIR CLEANER 1

1

1

1

1

13

5NY–14459–00

HOLDER, GUIDE

1

1

1

1

14

5NY–14455–20

BAND

1

1

1

1

15

5NY–14442–00

SPACER

1

1

1

1

16

5NY–14417–00

COVER 1

1

1

1

1

17

90267–32070

RIVET, BLIND

3

3

3

3

18

90201–03313

WASHER, PLATE

6

6

6

6

19

4XM–14451–00

ELEMENT, AIR CLEANER

1

1

1

1

20

90209–06096

WASHER

1

1

1

1

21

90122–06005

BOLT, WING

1

1

1

1

22

3JD–14458–01

GUIDE

1

1

1

1

23

90183–06023

NUT, SPRING

4

4

4

4

24

90109–06245

BOLT

4

4

4

4

8

FIG.

7

CARBURETOR

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

1

1C3–14101–30

CARBURETOR ASSY 1

1

1C3–14101–40

CARBURETOR ASSY 1

1

1

1C3–14101–50

CARBURETOR ASSY 1

1

2

5HD–14261–00

.HOLDER

1

1

1

1

3

4PE–14194–00

.RING

1

1

1

1

4

3MA–14159–00

.CLIP

1

1

1

1

5

3JE–14171–00

.PLUNGER, STARTER

1

1

1

1

6

5UN–14104–00

.AIR SCREW SET

1

1

1

1

7

1FN–14565–00

.SCREW

1

1

1

1

8

5ET–14261–01

.HOLDER

1

1

1

1

9

98507–04008

.SCREW, PAN HEAD

1

1

1

1

10

353–14186–00

.PIN, FLOAT

1

1

1

1

11

4PE–14107–38

.NEEDLE VALVE SET

1

1

1

1

12

98507–04014

.SCREW, PAN HEAD

2

2

2

2

13

4PE–14131–00

.SPRING, THROTTLE VALVE

1

1

1

1

14

4PE–14103–00

.THROTTLE SCREW SET

1

1

1

1

15

5ET–14197–00

.PIPE

2

2

2

2

16

10V–14196–00

.PIPE

1

1

1

1

17

5ET–14185–00

.FLOAT

1

1

1

1

18

2K6–14147–00

.O-RING

1

1

1

1

19

5ET–14115–00

.PLUG, SCREW

1

1

1

1

20

284–14116–H4

.NEEDLE (6BFY42-74)

1

STD

284–14116–J4

.NEEDLE (6BFY43-74)

1

1

1

STD

284–14116–H2

.NEEDLE (6BFY42-72)

1

1

1

1

AP

284–14116–H3

.NEEDLE (6BFY42-73)

1

1

1

1

AP

284–14116–H4

.NEEDLE (6BFY42-74)

1

1

1

AP

284–14116–H5

.NEEDLE (6BFY42-75)

1

1

1

1

AP

9

FIG.

7

CARBURETOR

REF.

NO.

PART NO.

DESCRIPTION

1C3H

1C3J

1C3K

1C3L

REMARKS

20

284–14116–H6

.NEEDLE (6BFY42-76)

1

1

1

1

AP

284–14116–J2

.NEEDLE (6BFY43-72)

1

1

1

1

AP

284–14116–J3

.NEEDLE (6BFY43-73)

1

1

1

1

AP

284–14116–J4

.NEEDLE (6BFY43-74)

1

AP

284–14116–J5

.NEEDLE (6BFY43-75)

1

1

1

1

AP

284–14116–J6

.NEEDLE (6BFY43-76)

1

1

1

1

AP

284–14116–K2

.NEEDLE (6BFY44-72)

1

1

1

1

AP

284–14116–K3

.NEEDLE (6BFY44-73)

1

1

1

1

AP

284–14116–K4

.NEEDLE (6BFY44-74)

1

1

1

1

AP

284–14116–K5

.NEEDLE (6BFY44-75)

1

1

1

1

AP

284–14116–K6

.NEEDLE (6BFY44-76)

1

1

1

1

AP

21

4KM–14142–40

.JET, PILOT (# 40)

1

1

STD

4KM–14142–45

.JET, PILOT (# 45)

1

1

STD

4KM–14142–30

.JET, PILOT (# 30)

1

1

1

1

AP

4KM–14142–32

.JET, PILOT (# 32.5)

1

1

1

1

AP

4KM–14142–35

.JET, PILOT (# 35)

1

1

1

1

AP

4KM–14142–37

.JET, PILOT (# 37.5)

1

1

1

1

AP

4KM–14142–40

.JET, PILOT (# 40)

1

1

AP

4KM–14142–42

.JET, PILOT (# 42.5)

1

1

1

1

AP

4KM–14142–45

.JET, PILOT (# 45)

1

1

AP

4KM–14142–47

.JET, PILOT (# 47.5)

1

1

1

1

AP

4KM–14142–50

.JET, PILOT (# 50)

1

1

1

1

AP

22

137–14143–82

.JET, MAIN (#410)

1

STD

137–14143–86

.JET, MAIN (#430)

1

1

1

STD

137–14143–80

.JET, MAIN (#400)

1

1

1

1

AP

137–14143–82

.JET, MAIN (#410)

1

1

1

AP

137–14143–84

.JET, MAIN (#420)

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AP