YAMAHA MK175B1B PARTS CATALOGUE

MK175B1B (7WC1) KOHLER
1A7WC-110EA
()
MK175B1B
PARTS CATALOGUE
©2003 by Yamaha Motor Co., Ltd.
1st edition, January 2003
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 Yamaha Parts News. It is advisable that you make the 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” 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.
PART NO. DESCRIPTION Q’TY REMARKS
2F5–83310–60 FRONT FLASHER LIGHT ASSY 2
115–83311–60 .BULB (6V–18W) 1
6. The asterisk (*) before a reference number indicates modified items after the first edition.
4. Applicable colours 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
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.
7. Applicable Serial No.
Engine Serial No.
8. Applicable Colour Code
Abbreviation Colour Name Colour Code
LGB LOW GLOSS BLACK 0098
FOREWORD
FOREWORD
CYLINDER ............................................................................1
CRANKSHAFT ......................................................................2
CRANKSHAFT. PISTON .......................................................3
GOVERNOR 1 ......................................................................4
CAMSHAFT. VALVE ............................................................. 5
AIR SHROUD. STARTER .....................................................6
INTAKE 1 ..............................................................................7
CARBURETOR .....................................................................8
EXHAUST .............................................................................9
CRANKCASE ........................................................................10
FUEL TANK ...........................................................................11
MAGNETO ............................................................................12
ELECTRICAL 1 .....................................................................13
EMBLEM. LABEL .................................................................. 14
BODY FITTING .....................................................................15
INDEX
NUMERICAL INDEX .............................................................16

CONTENTS

FIG. 1 CYLINDER
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PART NO. DESCRIPTION
7WC–11111–00
95607–06615
95627–06690
7WC–11181–00
95827–08065
95827–08045
99530–10114
94701–00331
7NJ–11191–00
7NJ–11160–00
90445–131J5
7NJ–11169–00
7NJ–11193–00
95827–06012
HEAD, CYLINDER 1 1
BOLT, STUD 2
BOLT, STUD 2
GASKET, CYLINDER HEAD 1 1
BOLT, FLANGE 2
BOLT, FLANGE 2
PIN, DOWEL 2
PLUG, SPARK (BPR4ES) 1
COVER, CYLINDER HEAD 1 1
BREATHER ASSY 1
HOSE (L106) 1
GASKET, BREATHER COVER 1
GASKET, HEAD COVER 1 1
BOLT, FLANGE 4
7WC1
REMARKS
1
FIG. 2 CRANKSHAFT
REF. NO.
1
PART NO. DESCRIPTION
7NN–11400–11
CRANKSHAFT ASSY 1
7WC1
REMARKS
2
FIG. 3 CRANKSHAFT. PISTON
REF. NO.
1
2
3
4
PART NO. DESCRIPTION
730–17441–00
7NJ–11650–00
JA9–11654–01
7NJ–11631–00–98
KEY, FLAT (5MMX30MM) 1
CONNECTING ROD ASSY 1
.BOLT, CONNECTING ROD 2
PISTON (STD) 1
7WC1
REMARKS
7NJ–11635–00
7NJ–11636–00
5
7WC–11610–00
7WC–11604–00
7WC–11605–00
6
4H7–11633–00
7
93450–17025
8
7G4–11561–00
PISTON (0.25MM O/S) 1 AP
PISTON (0.50MM O/S) 1 AP
PISTON RING SET (STD) 1
PISTON RING SET (0.25MM O/S) 1 AP
PISTON RING SET (0.50MM O/S) 1 AP
PIN, PISTON 1
CIRCLIP 2
SHIM,CRANK 1 (T=0.1) 1 UN
3
FIG. 4 GOVERNOR 1
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PART NO. DESCRIPTION
7NJ–11970–00
7NJ–11913–00
7FK–11914–00
90201–065K7
93440–06107
90201–065K7
JA9–11917–00
7NJ–11922–00
92907–06200
90468–18008
7NN–11924–00
97027–06030
92907–06600
90173–06017
7LV–11928–10
FLYWEIGHT SHAFT ASSY. 1
.WEIGHT 2
.SHAFT, WEIGHT 2
WASHER, PLATE 1
CIRCLIP 1
WASHER, PLATE 1
COLLAR 1
FORK, GOVERNOR 1
WASHER 1
CLIP 1
ARM, GOVERNOR 1
BOLT 1
WASHER, PLATE 1
NUT, SQUARE 1
ROD, LINK 1
7WC1
REMARKS
16
90506–04495
17
7NN–41240–00
18
98507–05025
19
90501–090A8
20
7NN–11925–00
21
77Y–11950–01
22
90153–05003
23
7UH–11932–00
24
98507–04006
25
99001–04600
SPRING, TENSION 1
THROTTLE LEVER COMP. 1
.SCREW, PAN HEAD 1
.SPRING, COMPRESSION 1
SPRING, GOVERNOR 1
HOLDER, WIRE 1
SCREW, HEXAGON 1
SETTER, WIRE 1
SCREW, PAN HEAD 1
CIRCLIP 1
4
FIG. 5 CAMSHAFT. VALVE
REF. NO.
1
2
3
4
5
PART NO. DESCRIPTION
7NJ–12170–03
7NJ–12287–00
7NJ–12111–00
7NJ–12121–00
7WC–12153–00
CAMSHAFT ASSY 1 1
.SPRING, DECOMPRESSION 1
VALVE, INTAKE 1
VALVE, EXHAUST 1
LIFTER, VALVE 2 UR
7WC1
REMARKS
JA9–12153–10
6
90501–205J4
7
7NJ–12117–00
8
7NJ–12118–00
9
7NN–12151–00
10
7NN–12165–02
11
7FK–12157–00
12
7FK–12158–00
13
7NJ–12155–01
14
7NJ–12154–00
15
51Y–12119–00
LIFTER, VALVE 2 UR
SPRING, COMPRESSION 2
RETAINER, VALVE SPRING 2
COTTER, VALVE 2
ARM, VALVE ROCKER 2
PIVOT, ROCKER ARM 2
BOLT 2
NUT, LOCK 2
GUIDE, PUSH ROD 1
ROD, VALVE PUSH 2
SEAL, VALVE STEM 1
5
FIG. 6 AIR SHROUD. STARTER
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PART NO. DESCRIPTION
7NJ–12621–00
95807–06012
95880–06012
7NJ–12651–02
95807–06012
7UF–15710–00
7UF–15711–00
7UF–15714–00
7UF–15713–00
7TA–15741–00
7TA–15716–00
JL8–15715–00
7NJ–15793–00
7UF–15751–00
7UR–15755–00
CASE, FAN 1
BOLT, FLANGE 4
BOLT, FLANGE 1
AIR SHROUD, CYLINDER 1 1
BOLT, FLANGE 1
STARTER ASSY 1
.CASE, STARTER 1
.DRUM, SHEAVE 1
.SPRING, STARTER 1
.PAWL, DRIVE 2
.PLATE, DRIVE 1
.SPRING, FRICTION 1
.SCREW 1
.WIRE, STARTER 1
.HANDLE, STARTER 1
7WC1
REMARKS
16
95807–06008
17
7UF–15723–00
BOLT, FLANGE 3
PULLEY, STARTER 1
6
FIG. 7 INTAKE 1
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PART NO. DESCRIPTION
7NJ–13596–00
7NJ–13557–00
7NJ–13567–00
7UF–14411–00
7UF–14412–00
7UF–14451–00
7UF–14461–00
7UF–14452–00
90175–06012
7UF–14439–00
95707–06500
95827–06020
7UF–14583–00
7UF–14445–00
JOINT, CARBURETOR 2 1
GASKET 2
GASKET 1
CASE, AIR CLEANER 1 1
CAP, CLEANER CASE 1 1
ELEMENT, AIR CLEANER 1
ELEMENT, AIR CLEANER 2 1
SEAL 1
NUT, WING 1
NUT 1
NUT, FLANGE 2
BOLT, FLANGE 1
LEVER, CHOKE 1
GROMMET 1
7WC1
REMARKS
7
FIG. 8 CARBURETOR
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
PART NO. DESCRIPTION
7UF–14101–00
7LG–14185–00
22F–14186–00
7NJ–1495F–1A
7G0–14184–00
7EG–14181–00
7G0–14227–00
7RH–14486–00
73A–14212–00
7NJ–14211–00
7EG–14159–00
7LG–14150–11
1HX–1423A–70–A0
CARBURETOR ASSY 1 1
.FLOAT 1
.PIN, FLOAT 1
.NOZZLE, MAIN 1
.GASKET, FLOAT CHAMBER 1
.BODY, FLOAT CHAMBER 1 1
.WASHER 1
.SCREW, ROD 2
.SPRING 2
.SCREW, PILOT ADJUSTING 1
.CLIP 1
.NEEDLE ASSY 1
.JET, MAIN (#97.5) 1
7WC1
REMARKS
1HX–1423A–69–A0
1HX–14231–18–A0
1HX–1423E–32–A0
1HX–14231–16–A0
1HX–14231–18–A0
1HX–1423A–68–A0
14
620–1414J–16–A0
15
7NJ–14162–00
16
73A–14212–00
17
7E1–14191–00
18
7LV–14118–00
19
7RH–14216–00
.JET, MAIN (# 92.5) 1 AP BS 4K-8KFT
.JET, MAIN (# 90) 1 AP BS 8KFT-
.JET, MAIN (#81.3) 1 AP HD 4K-8KFT
.JET, MAIN (# 80) 1 AP HD 8KFT-
.JET, MAIN (# 90) 1 AP SD 4K-8KFT
.JET, MAIN (# 87.5) 1 AP SD 8KFT-
.JET, PILOT (#41.3) 1
.BOLT, HOLDING 1
.SPRING 1
.PLUG, DRAIN 1
.CAP 1
.SCREW 2
8
FIG. 9 EXHAUST
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
PART NO. DESCRIPTION
7NN–14721–05
7LL–14786–00
7NJ–14799–01
7NJ–14788–00
7NJ–1479E–00
90153–05024
7UF–14708–00
97027–06010
92907–06600
95827–06016
90201–06071
95307–06600
JA9–14613–00
MUFFLER 2 1
ARRESTER, SPARK 1
CAP 1
BAND, SILENCER 1
NET, WIRE 2 1
SCREW, HEXAGON 1
PROTECTOR ASSY 1
BOLT 4
WASHER, PLATE 4
BOLT, FLANGE 1
WASHER, PLATE 1
NUT 2
GASKET, EXHAUST PIPE 1
7WC1
REMARKS
9
FIG. 10 CRANKCASE
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PART NO. DESCRIPTION
7WC–15111–10
93306–20511
93102–25090
93104–06062
95027–10016
90430–10188
99530–08016
7NN–15411–01
7FK–11971–00
93306–20511
93102–25448
7NJ–15451–00
95827–08035
7NN–15362–00
90430–17002
CRANKCASE 1 1
BEARING 1
OIL SEAL 1
OIL SEAL 1
BOLT, FLANGE 2
GASKET 2
PIN, DOWEL 2
COVER, CRANKCASE 1(M8X1.25) 1
SHAFT, FLYWEIGHT 1
BEARING 1
OIL SEAL 1
GASKET, CRANKCASE COVER 1 1
BOLT, FLANGE 6
PLUG, OIL LEVEL 1
GASKET 1
7WC1
REMARKS
16
1G8–15362–00
17
93210–13657
PLUG, OIL LEVEL 1
O-RING 1
10
FIG. 11 FUEL TANK
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PART NO. DESCRIPTION
7UF–24110–01–98
7T9–24610–00
7T9–24612–00
730–24167–10
95827–06012
7UF–24115–00
7UF–24116–00
90338–05251
95827–08020
90201–08102
7NN–24311–00
90467–09037
7NJ–24500–01
7J3–24521–00
4X8–24565–00
FUEL TANK COMP. 1 LGB
CAP ASSY 1
.GASKET, CAP 1
STRAINER 1
BOLT, FLANGE 4
STAY, FUEL TANK 1 1
STAY, FUEL TANK 2 1
PLUG 3
BOLT, FLANGE 4
WASHER, PLATE 3
PIPE, FUEL 1 1
CLIP 2
FUEL COCK ASSY 1 1
.CUP, FILTER 1
.GASKET 1
7WC1
REMARKS
16
7NJ–24534–00
17
7NJ–24532–00
18
7NJ–24515–01
.SEAL, COCK 1
.GASKET 1
.NET, FILTER 2 1
11
FIG. 12 MAGNETO
REF. NO.
1
2
3
4
5
6
7
8
9
10
PART NO. DESCRIPTION
7NN–85650–00
7NN–85640–01
95827–06020
90170–14403
92907–14200
90280–04052
JN6–82370–00
7NJ–85720–02
95827–06012
7NJ–85724–00
ROTOR ASSY 1
T.C.I. UNIT ASSY 1
BOLT, FLANGE 2
NUT 1
WASHER 1
KEY, WOODRUFF 1
PLUG CAP ASSY 1
OIL LEVEL GAUGE ASSY 1
BOLT, FLANGE 3
CLAMP 1
7WC1
REMARKS
12
FIG. 13 ELECTRICAL 1
REF. NO.
1
2
3
4
5
6
7
8
9
10
11
PART NO. DESCRIPTION
7NN–82550–00
95704–06500
98507–06016
90464–07078
7UF–82507–00
7WG–85690–01
7NJ–85770–00
98507–06016
95704–06500
7NN–82599–00
90464–23041
ENGINE STOP SWITCH ASSY 1
NUT, FLANGE 1
SCREW, PAN HEAD 1
CLAMP 1
WIRE, LEAD 1
OIL WARNING UNIT 1
OIL PILOT LIGHT ASSY 1
SCREW, PAN HEAD 1
NUT, FLANGE 1
COVER, CONNECTER 1
CLAMP 1
7WC1
REMARKS
13
FIG. 14 EMBLEM. LABEL
REF. NO.
1
2
3
4
5
6
PART NO. DESCRIPTION
7UR–24164–00
7UF–24155–00
7UF–12629–00
7UF–24161–01
7UR–2415E–00
7RK–24154–00
EMBLEM 4 (ENGINE MAINTENANCE) 1
INDICATOR, CHOKE 1
EMBLEM (KOHLER) 1
EMBLEM 1(KOHLER COMMAND PRO'6) 1
LABEL, CAUTION (WARNING) 1
INDICATOR, SHIFT 1
7WC1
REMARKS
14
FIG. 15 BODY FITTING
REF. NO.
1
PART NO. DESCRIPTION
2T4–28147–00
BOX 21 1
7WC1
REMARKS
15
PA RT NO.
7WC–11111–00 7NJ–11160–00 7NJ–11169–00 7WC–11181–00 7NJ–11191–00 7NJ–11193–00 7NN–11400–11 7G4–11561–00 7WC–11604–00 7WC–11605–00 7WC–11610–00 7NJ–11631–00–98 4H7–11633–00 7NJ–11635–00 7NJ–11636–00 7NJ–11650–00 JA9–11654–01 7NJ–11913–00 7FK–11914–00 JA9–11917–00 7NJ–11922–00 7NN–11924–00 7NN–11925–00 7LV–11928–10 7UH–11932–00 77Y–11950–01 7NJ–11970–00 7FK–11971–00 7NJ–12111–00 7NJ–12117–00 7NJ–12118–00 51Y–12119–00 7NJ–12121–00 7NN–12151–00 7WC–12153–00 JA9–12153–10 7NJ–12154–00 7NJ–12155–01 7FK–12157–00 7FK–12158–00 7NN–12165–02 7NJ–12170–03 7NJ–12287–00 7NJ–12621–00 7UF–12629–00 7NJ–12651–02 7NJ–13557–00 7NJ–13567–00
REF.
NO.
1– 1 1–10 1–12 1– 4 1– 9 1–13 2– 1 3– 8 3– 5 3– 5 3– 5 3– 4 3– 6 3– 4 3– 4 3– 2 3– 3 4– 2 4– 3 4– 7 4– 8 4–11 4–20 4–15 4–23 4–21 4– 1
10 – 9
5– 3 5– 7 5– 8 5–15 5– 4 5– 9 5– 5 5– 5 5–14 5–13 5–11 5–12 5–10 5– 1 5– 2 6– 1
14 – 3
6– 4 7– 2 7– 3
PA RT NO.
7NJ–13596–00 7UF–14101–00 7LV–14118–00 620–1414J–16–A0 7LG–14150–11 7EG–14159–00 7NJ–14162–00 7EG–14181–00 7G0–14184–00 7LG–14185–00 22F–14186–00 7E1–14191–00 7NJ–14211–00 73A–14212–00 7RH–14216–00 7G0–14227–00 1HX–14231–16–A0 1HX–14231–18–A0 1HX–1423A–68–A0 1HX–1423A–69–A0 1HX–1423A–70–A0 1HX–1423E–32–A0 7UF–14411–00 7UF–14412–00 7UF–14439–00 7UF–14445–00 7UF–14451–00 7UF–14452–00 7UF–14461–00 7RH–14486–00 7UF–14583–00 JA9–14613–00 7UF–14708–00 7NN–14721–05 7LL–14786–00 7NJ–14788–00 7NJ–14799–01 7NJ–1479E–00 7NJ–1495F–1A 7WC–15111–10 1G8–15362–00 7NN–15362–00 7NN–15411–01 7NJ–15451–00 7UF–15710–00 7UF–15711–00 7UF–15713–00 7UF–15714–00
REF.
NO.
7– 1 8– 1 8–18 8–14 8–12 8–11 8–15 8– 6 8– 5 8– 2 8– 3 8–17 8–10 8– 9 8–19 8– 7 8–13 8–13 8–13 8–13 8–13 8–13 7– 4 7– 5 7–10 7–14 7– 6 7– 8 7– 7 8– 8 7–13 9–13 9– 7 9– 1 9– 2 9– 4 9– 3 9– 5
8– 4 10 – 1 10 – 16 10 – 14 10 – 8 10 – 12
6– 6
6– 7
6– 9
6– 8
PA RT NO .
JL8–15715–00 7TA–15716–00 7UF–15723–00 7TA–15741–00 7UF–15751–00 7UR–15755–00 7NJ–15793–00 730–17441–00 7UF–24110–01–98 7UF–24115–00 7UF–24116–00 7RK–24154–00 7UF–24155–00 7UR–2415E–00 7UF–24161–01 7UR–24164–00 730–24167–10 7NN–24311–00 7NJ–24500–01 7NJ–24515–01 7J3–24521–00 7NJ–24532–00 7NJ–24534–00 4X8–24565–00 7T9–24610–00 7T9–24612–00 2T4–28147–00 7NN–41240–00 JN6–82370–00 7UF–82507–00 7NN–82550–00 7NN–82599–00 7NN–85640–01 7NN–85650–00 7WG–85690–01 7NJ–85720–02 7NJ–85724–00 7NJ–85770–00 90153–05003 90153–05024 90170–14403 90173–06017 90175–06012 90201–06071 90201–065K7 90201–08102 90280–04052 90338–05251

NUMERICAL INDEX

REF.
NO.
6–12 6–11 6–17 6–10 6–14 6–15 6–13
3– 1 11 – 1 11 – 6 11 – 7 14 – 6 14 – 2 14 – 5 14 – 4 14 – 1 11 – 4 11 – 11 11 – 13 11 – 18 11 – 14 11 – 17 11 – 16 11 – 15 11 – 2 11 – 3 15 – 1
4–17 12 – 7 13 – 5 13 – 1 13 – 10 12 – 2 12 – 1 13 – 6 12 – 8 12 – 10 13 – 7
4–22
9– 6 12 – 4
4–14
7– 9
9–11
4– 4 11 – 10 12 – 6 11 – 8
PA RT NO .
90430–10188 90430–17002 90445–131J5 90464–07078 90464–23041 90467–09037 90468–18008 90501–090A8 90501–205J4 90506–04495 92907–06200 92907–06600
92907–14200 93102–25090 93102–25448 93104–06062 93210–13657 93306–20511 93440–06107 93450–17025 94701–00331 95027–10016 95307–06600 95607–06615 95627–06690 95704–06500 95707–06500 95807–06008 95807–06012 95827–06012
95827–06016 95827–06020
95827–08020 95827–08035 95827–08045 95827–08065 95880–06012 97027–06010 97027–06030 98507–04006 98507–05025 98507–06016 99001–04600 99530–08016
REF.
NO.
10 – 6 10 – 15
1–11 13 – 4 13 – 11 11 – 12
4–10
4–19
5– 6
4–16
4– 9
4–13
9– 9 12 – 5 10 – 3 10 – 11 10 – 4 10 – 17 10 – 2
4– 5
3– 7
1– 8 10 – 5
9–12
1– 2
1– 3 13 – 2
7–11
6–16
6– 2
1–14 11 – 5 12 – 9
9–10
7–12 12 – 3 11 – 9 10 – 13
1– 6
1– 5
6– 3
9– 8
4–12
4–24
4–18 13 – 3
4–25 10 – 7
PA RT NO .
99530–10114
REF.
NO.
1– 7
PART NO.
REF.
NO.
16
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