Yamaha TW125 Instruction Manual

TW125 (5RS1) EUROPE
1A5RS–300E1

A3
TW125
PARTS CATALOGUE
E2001 by Yamaha Motor Co., Ltd.
1st Edition, Oct. 2001
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan

A4

FOREWORD
A5
This Parts Catalogue is related to the parts for the model(s) in the below frame. When you are
orderingreplacementparts,pleaserefertothisParts Catalogueandquotebothpartnumbersand
part names correctly.
TW125(5RS1)
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. 1 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 finding parts numbers, not to be
used for assembling. When assembling, please use the applicable service
manual.
8. The asterisk (*) before a reference number indicates modification items
after the first edition.

MODEL LABEL
A6
(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
ab
c4TW1–010
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)
010 AUSTRIA
FINLAND
030 IRELAND
NORWAY
5RS1 050 ENGLAND
060 GREECE
070 ITALY
080 HOLLAND
090 PORTUGAL
(5) Colouring Information
Model
Code Colouring type
code Colour code Colour Name Abbrevi- ation
A0778 DARK VIOLET METALLIC A DVMA
5RS1 B0712 DARK GRAYISH GREEN
METALLIC 3 DNGM3
C0752 LIGHT YELLOWISH GRAY
METALLIC 9 LYNM9

CONTENTS
ENGINE
CYLINDER HEAD B2...................................
CYLINDER B3.........................................
CRANKSHAFT. PISTON B4..............................
VALVE B6.............................................
CAMSHAFT. CHAIN B7.................................
OIL PUMP B8..........................................
INTAKE B9............................................
CARBURETOR B10.....................................
EXHAUST B12..........................................
CRANKCASE B13.......................................
CRANKCASE COVER 1 B14..............................
STARTER B15..........................................
CLUTCH C2...........................................
TRANSMISSION C4....................................
SHIFT CAM. FORK C6..................................
SHIFT SHAFT C7......................................
CHASSIS
FRAME C8............................................
FENDER C10...........................................
SIDE COVER C11.......................................
REAR ARM C12.........................................
REAR SUSPENSION C13................................
STEERING C14.........................................
FRONT FORK C15......................................
FUEL TANK D3........................................
SEAT D4..............................................
FRONT WHEEL D5.....................................
FRONT BRAKE CALIPER D6............................
REAR WHEEL D7......................................
STEERING HANDLE. CABLE D9.........................
FRONT MASTER CYLINDER D10.........................
STAND. FOOTREST D11.................................
GENERATOR D13.......................................
STARTING MOTOR D14..................................
FLASHER LIGHT D15....................................
METER E2............................................
HEADLIGHT E3........................................
TAILLIGHT E4.........................................
HANDLE SWITCH. LEVER E5...........................
ELECTRICAL 1 E6.....................................
ELECTRICAL 2 E7.....................................
INDEX
NUMERICAL INDEX M1.................................

B2
FIG. 1 CYLINDER HEAD
1 5EK–11110–01 CYLINDER HEAD ASSY 1
2 93440–10085 .CIRCLIP 2
3 90153–06029 .SCREW, HEXAGON 1
4 90430–06014 .GASKET 1
5 5H0–11133–11 .GUIDE, INTAKE VALVE 2
6 3NS–11181–00 GASKET, CYLINDER HEAD 1 1
7 99530–14016 PIN, DOWEL 3
8 90430–14131 GASKET 1
9 90105–08195 BOLT, FLANGE 4
10 90201–08609 WASHER, PLATE 4
11 91317–08045 BOLT 2
12 5EK–11185–00 COVER, CYLINDER HEAD SIDE 1 1
13 93211–05471 O–RING 1
14 95027–06020 BOLT, FLANGE 2
15 15A–11186–00 COVER, CYLINDER HEAD SIDE 2 1
16 90462–06001 CLAMP 1
17 15A–11187–00 COVER, CYLINDER HEAD SIDE 3 1
18 93210–57634 O–RING 2
19 91317–06018 BOLT 5
20 5H0–1111F–00 PLATE 1
21 97007–06012 BOLT 2
22 90215–06184 WASHER, LOCK 1
23 94701–00333 PLUG, SPARK (NGK DR8EA) 1
PART NO. DESCRIPTION REMARKS
REF.
NO.
5RS1

B3
FIG. 2 CYLINDER
1 3NS–11310–00 CYLINDER 1
2 93210–63489 O–RING 1
3 4DD–11351–00 GASKET, CYLINDER 1
4 93210–13361 O–RING 1
5 99530–14016 PIN, DOWEL 2
6 91317–06030 BOLT 2
7 15A–11162–00 ABSORBER 2 2
8 5H0–11162–00 ABSORBER 2 2
9 15A–11161–01 ABSORBER 1 1
10 15A–15441–00 HOLDER, CLUTCH CABLE 1
PART NO. DESCRIPTION REMARKS
REF.
NO.
5RS1

B4
FIG. 3 CRANKSHAFT. PISTON
1 5N0–11400–00 CRANKSHAFT ASSY 1
2 5N0–11412–09 .CRANK 1 1
3 5N0–11422–00 .CRANK 2 1
4 5H0–11681–00 .PIN, CRANK 1 1
5 93310–530J3 .BEARING 1
6 5N0–11651–00 .ROD, CONNECTING 1
7 93306–30611 BEARING 1
8 25A–11631–00–Y0 PISTON (STD) 1
25A–11636–00 PISTON (0.50MM O/S) 1 AP
25A–11638–00 PISTON (1.00MM O/S) 1 AP
9 4GA–11603–00 PISTON RING SET (STD) 1
4GA–11605–00 PISTON RING SET (0.50MM O/S) 1 AP
4GA–11607–00 PISTON RING SET (1.00MM O/S) 1 AP
10 5N0–11633–00 PIN, PISTON 1
11 93450–16068 CIRCLIP 2
12 90201–201E4 WASHER, PLATE 1
13 5H0–11496–00 BOSS, BUFFER 1
14 90501–21133 SPRING, COMPRESSION 6
15 93605–10090 PIN, DOWEL 3
16 5H0–11536–00 GEAR, DRIVE (38T) 1
17 90214–20023 WASHER, CLAW 1
18 90240–07083 PIN, CLEVIS 1
19 90501–07629 SPRING, COMPRESSION 1
20 93602–13177 PIN, DOWEL 1
21 5H0–11531–00 GEAR, BALANCE WEIGHT (38T) 1
22 15E–11454–00 WEIGHT 1 1
23 93306–30427 BEARING 1
PART NO. DESCRIPTION REMARKS
REF.
NO.
5RS1

B5
FIG. 3 CRANKSHAFT. PISTON
24 93306–30427 BEARING 1
25 90282–05013 KEY, STRAIGHT 1
26 90215–14205 WASHER, LOCK 1
27 90170–14284 NUT 1
28 90280–05013 KEY, WOODRUFF 1
29 90201–10508 WASHER, PLATE 1
30 90101–10188 BOLT 1
31 36X–13324–00 GEAR, PUMP DRIVE 1
PART NO. DESCRIPTION REMARKS
REF.
NO.
5RS1