A2

YZ426FM (5JG1) U.S.A.

YZ426F

(5JG2) EUROPE

YZ426F

(5JG3) JAPAN

YZ426FM (5JG4) CANADA,OCEANIA,S.AFRICA

205JG–100E1

FOREWORD

A3

This Parts Catalogue is related to the parts for the model(s) in the below frame. When you are

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

part names correctly.

YZ426FM(5JG1/5JG4)YZ426F(5JG2/5JG3)

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

Catalogue will be announced in the Yamaha Parts News.

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

according to the Yamaha 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” Local Made (Parts need to be ordered locally)

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

3. Parts, which are to be supplied in an assembly, are listed with a dot(.) in

front of the part name as shown below.

EXAMPLE

CARBURETOR ASSY

.JET, PILOT

.NOZZLE, MAIN

4. Number of component for assembly

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

quantity of parts for each assembly unit.

EXAMPLE

PART NO.

DESCRIPTION

Q’TY

REMARKS

2F5–83310–60

FRONT FLASHER LIGHT ASSY

2

115–83311–60

.BULB (6V–18W)

1

1M1–83309–60

.REFLECTOR

1

5. Applicable colors of graphics are represented in the “REMARKS” as shown

below.

PART NO.

DESCRIPTION

Q’TY

REMARKS

2N4–24110–00–X5 .FUEL TANK COMP.

2

MXR

3J1–24240–10

.GRAPHIC, FUEL TANK

1

for MXR

6. Applicable Serial No.

Engine Serial No.

Frame Serial No.

7. Note that the illustrations for reference in funding parts numbers, not to be

used for assembling. When assembling, pleas use the applicable service

manual.

8. The asterisk (*) before a reference number indicates modification items

after the first edition.

MODEL LABEL

A4

(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–refer the “model code –

production code No.” in the catalogue to the “model code – production code No.

“indicated on the Model Label affixed onto the product concemed.

(2) “Model Label”Indication

a: Model Type Code

b: Production Code No.

c:

Colouring Type

xxxx – xxx

x

a

b

c

4TW1–010

A

(3) Model Label Affixing Location

(4) Model Code – Production Code Number of Model Listed in This Parts Catalog

Model

Code

Production

Code No.

Country

(destination)

Model

Code

Production

Code No.

Country

(destination)

5JG1

010

U.S.A

5JG4

040

S.AFRICA

010

FRANCE

020

BELGIUM

030

GERMANY

040

SPAIN

050

FINLAND

5JG2

060

ENGLAND

070

GREECE

080

ITALY

090

PORTUGAL

100

SWEDEN

5JG3

010

JAPAN

010

AUSTRALIA

5JG4

020

CANADA

030

NEWZEALAND

(5) Colouning Information

Colouring type

code

Colour

code

Colour Name

Abbrevi-

ation

A

0583

DEEP PURPLISH BLUE SOLID E

DPBSE

B2

FIG.

1

CYLINDER

1 5JG–11102–00

CYLINDER HEAD ASSY

1

1

1

1

2 5BE–11133–10

.GUIDE, INTAKE VALVE

3

3

3

3

3 5BE–11134–10

.GUIDE, EXHAUST VALVE

2

2

2

2

4 93440–10153

.CIRCLIP

5

5

5

5

5 91808–16023

.PIN, DOWEL

4

4

4

4

6 90105–067A6

.BOLT, WASHER BASED

10 10 10 10

7 90340–12112

.PLUG, STRAIGHT SCREW

1

1

1

1

8 95617–06635

BOLT, STUD

2

2

2

2

9 95617–08635

BOLT, STUD

2

2

2

2

10 95617–08620

BOLT, STUD

1

1

1

1

11 95707–08500

NUT, FLANGE

1

1

1

1

12 94701–00330

PLUG, SPARK (NGK–R CR8E)

1

1

1

1

UR

94701–00329

PLUG, SPARK (U24ESR–N)

1

1

1

1

UR

94701–00318

PLUG, SPARK (NGK R CR9E)

1

1

1

UR

94703–00318

PLUG, SPARK (NGK R CR9E)

1

UR

94701–00319

PLUG, SPARK (ND U27ESR–N)

1

1

1

UR

94703–00319

PLUG, SPARK (ND U27ESR–N)

1

UR

13 5JG–11181–00

GASKET, CYLINDER HEAD 1

1

1

1

1

14 90105–104A7

BOLT, WASHER BASED

2

2

2

2

15 90105–106A3

BOLT, WASHER BASED

2

2

2

2

16 90201–101A4

WASHER, PLATE

4

4

4

4

17 5BE–11191–00

COVER, CYLINDER HEAD 1

1

1

1

1

18 5BE–11167–00

PIPE, BREATHER 2

1

1

1

1

19 90109–066F0

BOLT

2

2

2

2

20 4KG–1111G–00

RUBBER, MOUNT 1

2

2

2

2

21 371–11167–01

PIPE, BREATHER 2

1

1

1

1

22 5BE–11166–00

PIPE, BREATHER 1

1

1

1

1

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B3

FIG.

1

CYLINDER

23 90445–112K0

HOSE

1

1

1

1

24 90467–11106

CLIP

2

2

2

2

25 90467–14015

CLIP

1

1

1

1

26 5BE–11193–10

GASKET, HEAD COVER 1

1

1

1

1

27 5JG–11311–00

CYLINDER 1

1

1

1

1

28 5BE–11351–00

GASKET, CYLINDER

1

1

1

1

29 90179–06500

NUT

2

2

2

2

30 93612–16254

PIN, DOWEL

2

2

2

2

31 90179–08270

NUT

2

2

2

2

32 95027–06040

BOLT, FLANGE

1

1

1

1

33 5JG–11387–00

CLAMP, HOSE 1

1

1

1

1

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B4

FIG.

2

CRANKSHAFT. PISTON

1 5JG–11400–00

CRANKSHAFT ASSY

1

1

1

1

2 5JG–11412–00

.CRANK 1

1

1

1

1

3 5JG–11422–00

.CRANK 2

1

1

1

1

4 5BE–11681–00

.PIN, CRANK 1

1

1

1

1

5 93310–634B0

.BEARING

1

1

1

1

6 5JG–11651–00

.ROD, CONNECTING

1

1

1

1

7 93306–30633

BEARING

2

2

2

2

8 5BE–11536–00

GEAR, DRIVE

1

1

1

1

9 90282–05058

KEY, STRAIGHT

1

1

1

1

10 5BE–11455–00

SHAFT 1

1

1

1

1

11 5BE–11454–00

WEIGHT 1

1

1

1

1

12 5BE–11531–00

GEAR, BALANCE WT

1

1

1

1

13 90149–06250

SCREW

3

3

3

3

14 93306–20335

BEARING

1

1

1

1

15 93311–62574

BEARING

1

1

1

1

16 90170–14171

NUT

1

1

1

1

17 90215–14204

WASHER, LOCK

1

1

1

1

18 90280–03017

KEY, WOODRUFF

1

1

1

1

19 5JG–11631–00

PISTON (STD)

1

1

1

1

20 5JG–11603–00

PISTON RING SET (STD)

1

1

1

1

21 5JG–11633–00

PIN, PISTON

1

1

1

1

22 93420–19084

CIRCLIP

2

2

2

2

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B5

FIG.

3

VALVE

1 5BE–12111–10

VALVE, INTAKE

1

1

1

1

2 5BE–12112–10

VALVE, INTAKE 2

2

2

2

2

3 5BE–12121–10

VALVE, EXHAUST

2

2

2

2

4 3GM–12126–00

SEAT, VALVE SPRING 2

5

5

5

5

5 5BE–12113–00

SPRING, VALVE INNER

3

3

3

3

6 5GR–12114–00

SPRING, VALVE OUTER

2

2

2

2

7 5BE–12117–00

RETAINER, VALVE SPRING

3

3

3

3

8 4GY–12117–00

RETAINER, VALVE SPRING

2

2

2

2

9 1AA–12118–00

COTTER, VALVE

4

4

4

4

10 1WG–12118–00

COTTER, VALVE

6

6

6

6

11 33M–12119–00

SEAL, VALVE STEM

2

2

2

2

12 4SV–12119–00

SEAL, VALVE STEM

3

3

3

3

13 3LD–12168–00

PAD, ADJUSTING (1.20)

5

5

5

5

UR

3LD–12168–20

PAD, ADJUSTING (1.25)

5

5

5

5

UR

3LD–12168–40

PAD, ADJUSTING (1.30)

5

5

5

5

UR

3LD–12168–60

PAD, ADJUSTING (1.35)

5

5

5

5

UR

3LD–12168–80

PAD, ADJUSTING (1.40)

5

5

5

5

UR

3LD–12168–A0

PAD, ADJUSTING (1.45)

5

5

5

5

UR

3LD–12168–F0

PAD, ADJUSTING (1.50)

5

5

5

5

UR

3LD–12168–H1

PAD, ADJUSTING (1.55)

5

5

5

5

UR

3LD–12168–K1

PAD, ADJUSTING (1.60)

5

5

5

5

UR

3LD–12168–M1

PAD, ADJUSTING (1.65)

5

5

5

5

UR

3LD–12168–R1

PAD, ADJUSTING (1.70)

5

5

5

5

UR

3LD–12168–U1

PAD, ADJUSTING (1.75)

5

5

5

5

UR

3LD–12168–W1

PAD, ADJUSTING (1.80)

5

5

5

5

UR

3LD–12168–Y1

PAD, ADJUSTING (1.85)

5

5

5

5

UR

3LD–12169–11

PAD, ADJUSTING (1.90)

5

5

5

5

UR

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B6

FIG.

3

VALVE

13 3LD–12169–31

PAD, ADJUSTING (1.95)

5

5

5

5

UR

3LD–12169–50

PAD, ADJUSTING (2.00)

5

5

5

5

UR

3LD–12169–70

PAD, ADJUSTING (2.05)

5

5

5

5

UR

3LD–12169–90

PAD, ADJUSTING (2.10)

5

5

5

5

UR

3LD–12169–E0

PAD, ADJUSTING (2.15)

5

5

5

5

UR

3LD–12169–G0

PAD, ADJUSTING (2.20)

5

5

5

5

UR

3LD–12169–J0

PAD, ADJUSTING (2.25)

5

5

5

5

UR

3LD–12169–L0

PAD, ADJUSTING (2.30)

5

5

5

5

UR

3LD–12169–N0

PAD, ADJUSTING (2.35)

5

5

5

5

UR

3LD–12169–T0

PAD, ADJUSTING (2.40)

5

5

5

5

UR

14 3FV–12153–00

LIFTER, VALVE

5

5

5

5

UR BLACK

3FV–12153–10

LIFTER, VALVE

5

5

5

5

UR YELLOW

3FV–12153–20

LIFTER, VALVE

5

5

5

5

UR BLUE

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B7

FIG.

4

CAMSHAFT. CHAIN

1 5BE–12170–00

CAMSHAFT ASSY 1

1

1

1

1

2 5BE–12180–00

CAMSHAFT ASSY 2

1

1

1

1

3 93440–41178

CIRCLIP

2

2

2

2

4 94591–50120

CHAIN

1

1

1

1

5 5BE–12210–00

TENSIONER ASSY, CAM CHAIN

1

1

1

1

6 4FM–12213–00

GASKET, TENSIONER CASE

1

1

1

1

7 95027–06025

BOLT, FLANGE

2

2

2

2

8 5BE–12251–10

DAMPER, CHAIN 1

1

1

1

1

9 5BE–12252–00

DAMPER, CHAIN 2

1

1

1

1

10 97027–06016

BOLT

2

2

2

2

11 92907–06600

WASHER, PLATE

2

2

2

2

12 5BE–12241–00

GUIDE, STOPPER 2

1

1

1

1

13 90109–06418

BOLT

1

1

1

1

14 90430–06014

GASKET

1

1

1

1

15 93102–12224

OIL SEAL

1

1

1

1

16 5BE–12280–10

DECOMPRESSION ASSY

1

1

1

1

17 90508–162B2

SPRING, TORSION

1

1

1

1

18 5BE–12283–00

BRACKET, DECOMPRESSION

1

1

1

1

19 5BE–12292–00

CABLE, DECOMPRESSION

1

1

1

1

20 95827–06014

BOLT, FLANGE

1

1

1

1

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B8

FIG.

5

WATER PUMP

1 5GR–12458–00

SHAFT, IMPELLER

1

1

1

1

2 5DJ–12451–00

IMPELLER, WATER PUMP

1

1

1

1

3 90201–08512

WASHER, PLATE

1

1

1

1

4 93109–11073

OIL SEAL

1

1

1

1

5 93102–12106

OIL SEAL (SD 12–22–5 HS)

1

1

1

1

6 93306–00105

BEARING (B6001)

1

1

1

1

7 5BE–12422–10

COVER, HOUSING

1

1

1

1

8 5BE–12439–00

O–RING

1

1

1

1

9 93604–10011

PIN, DOWEL

2

2

2

2

10 90430–06014

GASKET

1

1

1

1

11 95027–06025

BOLT, FLANGE

4

4

4

4

12 5BE–12564–00

PIPE, WATER

2

2

2

2

13 93210–19758

O–RING

2

2

2

2

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B9

FIG.

6

RADIATOR. HOSE

1 5JG–1240A–00

RADIATOR ASSY

1

1

1

1

2 5JG–12461–00

RADIATOR ASSY

1

1

1

1

3 5HD–12462–00

CAP, RADIATOR

1

1

1

1

4 91A20–05065

TUBE, FLEXIBLE VINYL

1

1

1

1

5 90467–09006

CLIP

1

1

1

1

6 5BE–12481–10

PIPE 1

1

1

1

1

7 95027–06012

BOLT, FLANGE

1

1

1

1

8 93210–16500

O–RING

1

1

1

1

9 5BE–12576–00

HOSE 1

1

1

1

1

10 5BE–12577–00

HOSE 2

1

1

1

1

11 5BE–12578–00

HOSE 3

1

1

1

1

12 5BE–12579–01

HOSE 4

1

1

1

1

13 5BE–12482–00

PIPE 2

1

1

1

1

14 95027–06012

BOLT, FLANGE

1

1

1

1

15 93210–16500

O–RING

1

1

1

1

16 90450–28014

HOSE CLAMP ASSY

3

3

3

3

17 90450–25037

HOSE CLAMP ASSY

5

5

5

5

18 90480–15528

GROMMET

6

6

6

6

19 90387–0614M

COLLAR

6

6

6

6

20 95027–06025

BOLT, FLANGE

6

6

6

6

21 90201–06071

WASHER, PLATE

6

6

6

6

22 95827–06010

BOLT, FLANGE

2

2

2

2

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B10

FIG.

7

OIL PUMP

1 5BE–13300–00

OIL PUMP ASSY

1

1

1

1

2 1HX–13310–00

ROTOR ASSY 1

1

1

1

1

3 93603–17070

PIN, DOWEL

1

1

1

1

4 93440–10085

CIRCLIP

1

1

1

1

5 93210–10197

O–RING

1

1

1

1

6 99530–10114

PIN, DOWEL

1

1

1

1

7 99530–08012

PIN, DOWEL

1

1

1

1

8 91317–06025

BOLT

2

2

2

2

9 91314–06030

BOLT

1

1

1

1

10 99001–08600

CIRCLIP

1

1

1

1

11 5BE–13341–00

GEAR, OIL PUMP IDLE

1

1

1

1

12 5BE–13342–00

SHAFT, IDLE GEAR

1

1

1

1

13 99009–12400

CIRCLIP

1

1

1

1

14 90201–12166

WASHER, PLATE

1

1

1

1

15 5BE–13412–00

HOUSING, STRAINER

1

1

1

1

16 95027–06025

BOLT, FLANGE

2

2

2

2

17 5BE–13411–00

STRAINER, OIL

1

1

1

1

18 5BE–13464–00

HOSE, OIL 1

1

1

1

1

19 93210–10197

O–RING

1

1

1

1

20 99530–10114

PIN, DOWEL

1

1

1

1

21 95027–06025

BOLT, FLANGE

1

1

1

1

22 90450–22017

HOSE CLAMP ASSY

1

1

1

1

23 5BE–13416–00

PIPE, OIL 1

1

1

1

1

24 5BE–13465–00

HOSE, OIL 2

1

1

1

1

25 90450–22017

HOSE CLAMP ASSY

1

1

1

1

26 93210–10197

O–RING

2

2

2

2

27 99530–10114

PIN, DOWEL

2

2

2

2

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B11

FIG.

7

OIL PUMP

28 95027–06025

BOLT, FLANGE

1

1

1

1

29 95024–06020

BOLT, FLANGE

1

1

1

1

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B12

FIG.

8

OIL CLEANER

1 1UY–13440–02

ELEMENT ASSY, OIL CLEANER

1

1

1

1

2 5BE–13447–00

COVER, OIL ELEMENT

1

1

1

1

3 93210–50553

O–RING

1

1

1

1

4 93210–07135

O–RING

3

3

3

3

5 90109–065G2

BOLT

1

1

1

1

6 95027–06065

BOLT, FLANGE

1

1

1

1

7 95027–06020

BOLT, FLANGE

1

1

1

1

8 5BE–13161–01

PIPE, DELIVERY 1

1

1

1

1

9 90401–10159

BOLT, UNION

1

1

1

1

10 90430–10188

GASKET

2

2

2

2

11 90401–08038

BOLT, UNION

2

2

2

2

12 90430–08119

GASKET

4

4

4

4

13 5BE–13171–00

PIPE, DELIVERY 2

1

1

1

1

14 93210–07003

O–RING

1

1

1

1

15 93210–09008

O–RING

1

1

1

1

16 93210–12759

O–RING

1

1

1

1

17 95027–06012

BOLT, FLANGE

1

1

1

1

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4

B13

FIG.

9

INTAKE

1 5JG–13597–00

JOINT, CARBURETOR 3

1

1

1

1

2 90450–57092

HOSE CLAMP ASSY

1

1

1

1

3 90450–59091

HOSE CLAMP ASSY

1

1

1

1

4 5JG–1440F–00

JOINT, AIR FILTER 1

1

1

1

1

5 91317–05014

BOLT

2

2

2

2

6 4FN–14561–00

O–RING

1

1

1

1

7 90460–61162

CLAMP, HOSE

1

1

1

1

8 5JG–14293–00

COVER 1

1

1

1

1

9 5JG–14428–00

BOLT

1

1

1

1

10 5JG–14401–00

AIR CLEANER CASE ASSY

1

1

1

1

11 5JG–14453–00

JOINT, AIR CLEANER 1

1

1

1

1

12 3JD–14459–01

HOLDER, GUIDE

1

1

1

1

13 3JD–14477–00

PLATE

1

1

1

1

14 95607–05100

NUT, U

5

5

5

5

15 5BE–1443E–00

PIPE, DRAIN

1

1

1

1

16 90467–17089

CLIP

1

1

1

1

17 4XM–14451–00

ELEMENT, AIR CLEANER

1

1

1

1

18 90209–06096

WASHER

1

1

1

1

19 90122–06035

BOLT, WING

1

1

1

1

20 5BE–14458–00

GUIDE

1

1

1

1

21 5BE–1441A–00

COVER, CLEANER CASE 1

1

1

1

1

22 5BE–1441E–00

COVER, CLEANER CASE 2

1

1

1

1

23 90267–32070

RIVET, BLIND

5

5

5

5

24 90201–03313

WASHER, PLATE

5

5

5

5

25 90183–06023

NUT, SPRING

2

2

2

2

26 95027–06012

BOLT, FLANGE

1

1

1

1

27 5JG–14417–00

COVER 1

1

1

1

1

AP

PART NO.

DESCRIPTION

REMARKS

REF.

NO.

5JG1

5JG2

5JG3

5JG4