YZ125M
(5HD1)
CANADA,U.S.A.,SOUTH AFRICA
YZ125
YZ125
YZ125M
(5HD2)
(5HD3)
(5HD4)
EUROPE
JAPAN
OCEANIA
A
205HD–100E1
2
A
3
FOREWORD
This Parts Catalogueis related to theparts forthemodel(s)inthebelowframe. When you are
orderingreplacementparts,pleaserefertothisParts Catalogueandquotebothpartnumbersand
part names correctly.
YZ125M(5HD1/5HD4),YZ125(5HD2/5HD3)
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.
A
4
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–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
ab
xxxx – xxx
c
x
(3) Model Label Affixing Location
a: Model Type Code
b: Production Code No.
c: Colouring Type
4TW1–010
A
(4) Model Code – Production Code Number of Model Listed in This Parts Catalog
Model
Code
5HD1
5HD2
5HD3 010 JAPAN
5HD4
Production
Code No.
010 U.S.A.
020 CANADA
030
010 FRANCE
020 GERMANY
030 ESPAÑA
040 ENGLAND
050 ITALY
010 AUSTRALIA
020
Country
(destination)
SOUTH AFRICA
NEW ZEALAND
Model
Code
Production
Code No.
(destination)
Country
(5) Colouning Information
Model
Code
5HD1
5HD2
5HD3
5HD4
A
5
Colouring type
code
A 0583
Colour
code
Colour Name
DEEP PURPLISH BLUE
DEEP PURPLISH BLUE
SOLID E
Abbrevi-
ation
DPBSE
FIG. 1 CYLINDER HEAD
REF.
NO.
10 90116–08388 BOLT, STUD 2 2 2 2
11 99530–10114 PIN, DOWEL 2 2 2 2
12 90179–08299 NUT 4 4 4 4
13 94702–00324 PLUG, SPARK (NGK BR9EG) 1 1 1 1
14 5HD–1131D–00 VALVE ASSY 1 1 1 1
15 5HD–1132D–00 VALVE ASSY 2 1 1 1 1
PARTNO. DESCRIPTION REMARKS
1 4JY–11111–01 HEAD, CYLINDER 1 1 1 1 1
2 90116–08394 BOLT, STUD 5 5 5 5
3 90176–08026 NUT, CROWN 5 5 5 5
4 90201–08087 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 5HD–11311–00 CYLINDER 1 1 1 1 1
8 5DH–11351–00 GASKET, CYLINDER 1 1 1 1
9 90116–08318 BOLT, STUD 2 2 2 2
5HD1
5HD2
5HD3
5HD4
B
16 91317–05012 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 91317–04008 BOLT 1 1 1 1
20 93104–08040 OIL SEAL 1 1 1 1
21 4SS–1131M–00 COVER 1 1 1 1
22 4JY–11166–00 PIPE, BREATHER 1 1 1 1 1
23 90467–13062 CLIP 1 1 1 1
24 4JY–11354–02 GASKET 1 1 1 1
25 98907–05016 SCREW, BIND 4 4 4 4
26 90508–16134 SPRING, TORSION 2 2 2 2
27 90387–08785 COLLAR 2 2 2 2
2
FIG. 1 CYLINDER HEAD
REF.
NO.
28 4JY–11991–01 HOUSING 1 1 1 1 1
29 4JY–11993–01 .GASKET 1 1 1 1
30 97007–05016 BOLT 4 4 4 4
31 92907–05600 WASHER, PLATE 4 4 4 4
32 4JY–11995–00 SEAL, HOUSING 1 1 1 1
PARTNO. DESCRIPTION REMARKS
5HD1
5HD2
5HD3
5HD4
B
3
FIG. 2 GOVERNOR
REF.
NO.
10 93300–60801 BEARING (B0060) 2 2 2 2 KOYO
11 5X4–11921–02 SHAFT, GOVERNOR 1 1 1 1
12 24X–11953–01 GEAR, GOVERNOR 1 1 1 1
13 90501–30001 SPRING, COMPRESSION 1 1 1 1
14 5CU–11952–00 PLATE 1 1 1 1
15 90201–150U6 WASHER, PLATE 3 3 3 3
PARTNO. DESCRIPTION REMARKS
1 4JY–11915–01 PLATE, THRUST 1 1 1 1 1
2 98507–05012 SCREW, P ANHEAD 1 1 1 1
3 4SS–11990–00 PUSH ROD ASSY 1 1 1 1
4 90387–085E1 COLLAR 1 1 1 1
5 90201–057H5 WASHER, PLATE 1 1 1 1
6 97007–05012 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 91317–04006 BOLT 2 2 2 2
5HD1
5HD2
5HD3
5HD4
B
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.
10 4XM–11633–10 PIN, PISTON 1 1 1 1
11 93450–16068 CIRCLIP 2 2 2 2
12 93310–315S4 BEARING 1 1 1 1
PARTNO. DESCRIPTION REMARKS
1 5DH–11400–00 CRANKSHAFT ASSY 1 1 1 1
2 4SS–11410–10 .CRANKSHAFT 1 1 1 1
3 4SS–11420–00 .CRANKSHAFT 1 1 1 1
4 4PE–11651–02 .ROD, CONNECTING 1 1 1 1
5 3JD–11681–02 .PIN, CRANK 1 1 1 1 1
6 90209–22071 .WASHER 2 2 2 2
7 93310–522P7 .BEARING 1 1 1 1
8 4XM–11631–20–A0 PISTON (STD) 1 1 1 1 UR
4XM–11631–20–B0 PISTON (STD) 1 1 1 1 UR
4XM–11631–20–C0 PISTON (STD) 1 1 1 1 UR
4XM–11631–20–D0 PISTON (STD) 1 1 1 1 UR
9 4JY–11611–00 RING, PISTON 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
13 93306–37204 BEARING (63/22SH2–9TC4) 2 2 2 2 KOYO
14 93102–22363 OIL SEAL 1 1 1 1
15 93103–32183 OIL SEAL 1 1 1 1
16 90280–03045 KEY, WOODRUFF 1 1 1 1
5
FIG. 4 WATER PUMP
REF.
NO.
10 4JY–12428–00 GASKET, HOUSING COVER 2 1 1 1 1
11 93604–10011 PIN, DOWEL 2 2 2 2
12 95027–06065 BOLT, FLANGE 2 2 2 2
13 95027–06030 BOLT, FLANGE 2 2 2 2
14 90430–06014 GASKET 1 1 1 1
15 95027–06010 BOLT, FLANGE 1 1 1 1
PARTNO. DESCRIPTION REMARKS
1 5DH–12459–01 GEAR, IMPELLER SHAFT 1 1 1 1
2 5DH–12451–00 IMPELLER, WATER PUMP 1 1 1 1
3 99001–06600 CIRCLIP 1 1 1 1
4 90201–083P5 WASHER, PLATE 1 1 1 1
5 90201–08784 WASHER, PLATE 1 1 1 1
6 93109–11073 OIL SEAL 1 1 1 1
7 93102–12106 OIL SEAL (SD 12–22–5 HS) 1 1 1 1
8 93306–00105 BEARING (B6001) 1 1 1 1
9 4JY–12422–00 COVER, HOUSING 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
6
FIG. 5 RADIATOR. HOSE
REF.
NO.
10 90450–28014 HOSE CLAMP ASSY 4 4 4 4
11 90450–22017 HOSE CLAMP ASSY 2 2 2 2
12 90467–21068 CLIP 1 1 1 1
13 90450–25037 HOSE CLAMP ASSY 1 1 1 1
14 90480–15528 GROMMET 6 6 6 6
15 90387–0614M COLLAR 6 6 6 6
PARTNO. DESCRIPTION REMARKS
1 4SS–1240A–10 RADIATOR ASSY 1 1 1 1
2 91A20–05065 TUBE, FLEXIBLE VINYL 1 1 1 1
3 90467–09006 CLIP 1 1 1 1
4 4SS–12461–10 RADIATOR ASSY 1 1 1 1
5 5HD–12462–00 CAP, RADIATOR 1 1 1 1
6 4SS–12481–00 PIPE 1 1 1 1 1
7 4SS–12482–00 PIPE 2 1 1 1 1
8 4SS–12483–00 PIPE 3 1 1 1 1
9 4SS–12484–00 PIPE 4 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
16 90119–06214 BOLT, WITH WASHER 6 6 6 6
7
FIG. 6 INTAKE
REF.
NO.
10 4SS–14401–10 AIR CLEANER CASE ASSY 1 1 1 1
11 5HD–14453–00 JOINT, AIR CLEANER 1 1 1 1 1
12 3JD–14459–01 HOLDER, GUIDE 1 1 1 1
13 3JD–14462–00 SEAL 1 1 1 1
14 3JD–14477–00 PLATE 1 1 1 1
15 95607–05100 NUT, U 5 5 5 5
PARTNO. DESCRIPTION REMARKS
1 4JY–13610–10 REED VALVE ASSY 1 1 1 1
2 4JY–13613–10 .REED, VALVE 2 2 2 2
3 4JY–13616–00 .STOPPER, REED VALVE 2 2 2 2
4 98507–03006 .SCREW, PAN HEAD 4 4 4 4
5 92907–03100 .WASHER 4 4 4 4
6 5ET–13565–00 JOINT, CARBURETOR 1 1 1 1
7 95027–06020 BOLT, FLANGE 4 4 4 4
8 90450–51070 HOSE CLAMP ASSY 1 1 1 1
9 90450–70072 HOSE CLAMP ASSY 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
16 4SS–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 90122–06035 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 90119–06203 BOLT, WITH WASHER 2 2 2 2
8
FIG. 7 CARBURETOR
REF.
NO.
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
PARTNO. DESCRIPTION REMARKS
1 5HD–14101–00 CARBURETOR ASSY 1 1 1
5HD–14101–10 CARBURETOR ASSY 1 1
5HD–14101–20 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 3JD–14104–00 .AIR SCREW SET 1 1 1 1
7 1FN–14565–00 .SCREW 1 1 1 1
8 5ET–14261–00 .HOLDER 1 1 1 1
9 98507–04008 .SCREW, PAN HEAD 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
14 4PE–14103–00 .THROTTLE SCREW SET 1 1 1 1
15 2HH–14197–00 .PIPE 2 2 2 2
16 2AL–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
20 275–14116–J1 .NEEDLE(6DHY53–75) 1 1 STD
275–14116–M1 .NEEDLE(6DHY57–75) 1 1 1 AP
275–14116–M2 .NEEDLE(6DHY57–76) 1 1 1 1 AP
275–14116–L1 .NEEDLE(6DHY56–75) 1 STD
275–14116–M3 .NEEDLE(6DHY57–77) 1 1 1 1 AP
275–14116–L9 .NEEDLE(6DHY56–73) 1 1 1 1 AP
9
FIG. 7 CARBURETOR
REF.
NO.
20 275–14116–M1 .NEEDLE(6DHY57–75) 1 STD
PARTNO. DESCRIPTION REMARKS
275–14116–J9 .NEEDLE(6DHY53–73) 1 1 1 1 AP
275–14116–L0 .NEEDLE(6DHY56–74) 1 1 1 1 AP
275–14116–J0 .NEEDLE(6DHY53–74) 1 1 1 1 AP
275–14116–L1 .NEEDLE(6DHY56–75) 1 1 1 AP
275–14116–J1 .NEEDLE(6DHY53–75) 1 1 AP
275–14116–L2 .NEEDLE(6DHY56–76) 1 1 1 1 AP
275–14116–J2 .NEEDLE(6DHY53–76) 1 1 1 1 AP
275–14116–L3 .NEEDLE(6DHY56–77) 1 1 1 1 AP
275–14116–J3 .NEEDLE(6DHY53–77) 1 1 1 1 AP
275–14116–N9 .NEEDLE(6DHY58–73) 1 1 1 1 AP
275–14116–M9 .NEEDLE(6DHY57–73) 1 1 1 1 AP
275–14116–N0 .NEEDLE(6DHY58–74) 1 1 1 1 AP
275–14116–M0 .NEEDLE(6DHY57–74) 1 1 1 1 AP
275–14116–N1 .NEEDLE(6DHY58–75) 1 1 1 1 AP
5HD1
5HD2
5HD3
5HD4
B
275–14116–N2 .NEEDLE(6DHY58–76) 1 1 1 1 AP
275–14116–N3 .NEEDLE(6DHY58–77) 1 1 1 1 AP
21 4KM–14142–35 .JET, PILOT (# 35) 1 1 1 1 STD
4KM–14142–30 .JET, PILOT (# 30) 1 1 1 1 AP
4KM–14142–40 .JET, PILOT (# 40) 1 1 1 1 AP
4KM–14142–45 .JET, PILOT (# 45) 1 1 1 1 AP
4KM–14142–50 .JET, PILOT (# 50) 1 1 1 1 AP
4KM–14142–55 .JET, PILOT (# 55) 1 1 1 1 AP
4KM–14142–60 .JET, PILOT (# 60) 1 1 1 1 AP
22 137–14143–70 .JET, MAIN (#350) 1 1 STD
137–14143–72 .JET, MAIN (#360) 1 STD
137–14143–76 .JET, MAIN (#380) 1 STD
10
FIG. 7 CARBURETOR
REF.
NO.
22 137–14143–68 .JET, MAIN (#340) 1 1 1 1 AP
23 5ET–14112–65 .VALVE, THROTTLE 1 1 1 1 1 STD
24 5ET–1416A–00 .O–RING 1 1 1 1
25 5ET–14147–00 .O–RING 1 1 1 1
26 51R–14146–00 .PLATE 1 1 1 1
27 98502–05014 .SCREW, PAN HEAD 3 3 3 3
28 5ET–14197–00 .PIPE 2 2 2 2
29 87M–14137–00 .CLIP 3 3 3 3
PARTNO. DESCRIPTION REMARKS
137–14143–70 .JET, MAIN (#350) 1 1 AP
137–14143–72 .JET, MAIN (#360) 1 1 1 AP
137–14143–74 .JET, MAIN (#370) 1 1 1 1 AP
137–14143–76 .JET, MAIN (#380) 1 1 1 AP
137–14143–78 .JET, MAIN (#390) 1 1 1 1 AP
5ET–14112–60 .VALVE, THROTTLE 1 1 1 1 1 AP
5ET–14112–70 .VALVE, THROTTLE 1 1 1 1 1 AP
5HD1
5HD2
5HD3
5HD4
B
11
FIG. 8 EXHAUST
REF.
NO.
10 90201–06060 WASHER, PLATE 1 1 1 1
11 90201–06071 WASHER, PLATE 1 1 1 1
12 95027–06012 BOLT, FLANGE 1 1 1 1
13 90119–06192 BOLT, WITH WASHER 1 1 1 1
14 95027–06025 BOLT, FLANGE 1 1 1 1
15 4JY–14615–00 JOINT, EXHAUST 1 1 1 1 1
PARTNO. DESCRIPTION REMARKS
1 5HD–14610–00 EXHAUST PIPE ASSY 1 1 1 1 1
2 93210–45742 O–RING 2 2 2 2
3 90507–20052 SPRING, TENSION 2 2 2 2
4 565–14771–00 STAY, MUFFLER 1 1 1 1 1
5 5CU–14771–00 STAY, MUFFLER 1 1 1 1 1
6 90480–16561 GROMMET 1 1 1 1
7 90387–063G3 COLLAR 1 1 1 1
8 90387–062W7 COLLAR 1 1 1 1
9 95027–06045 BOLT, FLANGE 1 1 1 1
5HD1
5HD2
5HD3
5HD4
B
16 5HD–14753–00 SILENCER, EXHAUST 1 1 1 1
17 5HD–1469A–00 .FIBER 1 1 1 1
18 92017–06010 .BOLT, BUTTON HEAD 2 2 2 2
19 95027–06025 BOLT, FLANGE 1 1 1 1
20 90201–06071 WASHER, PLATE 1 1 1 1
21 90387–063G3 COLLAR 2 2 2 2
22 90480–16561 GROMMET 2 2 2 2
12
FIG. 9 CRANKCASE
REF.
NO.
10 91317–06055 BOLT 6 6 6 6
11 91317–06070 BOLT 2 2 2 2
12 90461–10136 CLAMP 1 1 1 1
13 3R4–15118–00 HOLDER 1 1 1 1
14 90105–06556 BOLT, WASHER BASED 1 1 1 1
15 99590–17016 PIN, DOWEL 1 1 1 1
PARTNO. DESCRIPTION REMARKS
1 5ET–15111–00 CRANKCASE 1 1 1 1 1
2 353–13115–01 CONNECTOR, SUCTION PIPE 1 1 1 1
3 90445–08605 HOSE 1 1 1 1
4 93612–16254 PIN, DOWEL 2 2 2 2
5 5ET–15121–00 CRANKCASE 2 1 1 1 1
6 90387–1712Y COLLAR 2 2 2 2
7 90340–12059 PLUG, STRAIGHT SCREW 1 1 1 1
8 90430–12227 GASKET 1 1 1 1
9 91317–06045 BOLT 4 4 4 4
5HD1
5HD2
5HD3
5HD4
B
16 93210–16314 O–RING 1 1 1 1
13
FIG. 10 CRANKCASE COVER 1
REF.
NO.
10 3Y1–15363–00 PLUG, OIL 1 1 1 1
11 93210–19123 O–RING 1 1 1 1
12 95027–06010 BOLT, FLANGE 1 1 1 1
13 90430–06014 GASKET 1 1 1 1
14 95027–06030 BOLT, FLANGE 6 6 6 6
15 95027–06040 BOLT, FLANGE 2 2 2 2
PARTNO. DESCRIPTION REMARKS
1 4JY–15411–00 COVER, CRANKCASE 1 1 1 1 1
2 4JY–15451–01 GASKET, CRANKCASE COVER 1 1 1 1 1
3 98507–06030 SCREW, P ANHEAD 5 5 5 5
4 92907–06600 WASHER, PLATE 5 5 5 5
5 4EX–15421–00 COVER, CRANKCASE 2 1 1 1 1
6 98507–06016 SCREW, P ANHEAD 2 2 2 2
7 4JY–15431–12 COVER, CRANKCASE 3 1 1 1 1
8 4JY–15462–00 GASKET, CRANKCASE COVER 3 1 1 1 1
9 99530–10114 PIN, DOWEL 2 2 2 2
5HD1
5HD2
5HD3
5HD4
B
16 4JY–15415–00 COVER, GENERATOR 1 1 1 1
17 4JY–15463–01 GASKET, CARBURETOR COVER 2 1 1 1 1
18 93604–10011 PIN, DOWEL 2 2 2 2
19 95027–06025 BOLT, FLANGE 6 6 6 6
14
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