Yamaha 20d Manual

20D’03
(6L32)
25MHB
(6L22)
20MHB
(
6L32
)
25N’03
(6L22)
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2B6L2−100E1 

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FOREWORD
This Parts Catalogue is related to the parts for the model(s) in the below frame. When you are ordering replace-
mentparts, please refer to this Parts Catalogue and quote both part numbers and part names correctly.
20MHB(6L32), 25MHB(6L22),
20D’03(6L32), 25N’03(6L22)
1. Modifications or additions which have been madeafter issue of the Parts Catalogue will
be announced in the YamahaParts News.
It is advisable that youmake necessary corrections to theParts Catalogue according to
the...

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CONTENTS
SHEET
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TOP COWLING A4.....................................
CYLINDER. CRANKCASE A5............................
CRANKSHAFT. PISTON A7..............................
INTAKE B2............................................
CARBURETOR B4.....................................
FUEL 1 B6............................................
FUEL 2 B7............................................
STARTER C1..........................................
GENERATOR C3.......................................
ELECTRICAL 1...

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FIG. 1 TOP COWLING1 6L2−42610−50−4D TOP COWLINGASSY 1 1
6L3−42610−50−4D TOP COWLINGASSY 1
2 6L2−42615−00 .SEAL 1 1 1
3 6G1−42651−71 .HOOK 1 1 1
4 6L2−42647−00 .HOLDER, CLAMP BAND 1 1 1
5 90266−04M00 .RIVET 2 2 2
6 6L2−42613−01−4D .MOLDING, AIR DUCT 1 1 1
7 97095−06016 .BOLT 4 4 4
8 92995−06600 .WASHER 4 4 4
9 6L2−W0070−30 .GRAPHIC SET 1 1 1
10 6L2−42677−30 .GRAPHIC, FRONT 1 1
6L3−42677−30 .GRAPHIC, FRONT 1
11 6L2−42678−30 .GRAPHIC, REAR 1 1
6L3−42678−30 .GRAPHIC, REAR 1
12 90266−04M04 .RIVET 2 2 2
13...

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FIG. 2 CYLINDER. CRANKCASE1 6L2−W0090−04−1S CRANK CYLINDERASSY 1 1 1 FORUSA,
OCEANIA−N.O/I
6L2−W0090−54−1S CRANK CYLINDERASSY 1 1 FORCANADA−N.O/I
2 6L2−15100−00−1S CRANKCASEASSY 1 1 1 FORUSA,
OCEANIA−N.O/I
6L2−15100−50−1S CRANKCASEASSY 1 1 FORCANADA−N.O/I
3 6E5−11372−01 .NIPPLE, HOSE 4 4 4 FOR 6L2−15100−00−1S
4 90445−07M15 HOSE (L40) 2 2 2 FOR 6L2−15100−00−1S
5 90467−06016 CLIP 4 4 4 FOR 6L2−15100−00−1S
6 93604−12M07 PIN, DOWEL 4 4 4
7 95617−08645 BOLT, STUD 2 2 2
8 90201−08086 WASHER, PLATE 2 2 2
9...

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FIG. 2 CYLINDER. CRANKCASE26 90119−06MA3 BOLT, WITH WASHER 2 2 2
27 6L2−4 1111−00−1S INNER COVER, EXHAUST 1 1 1
28 6L2−41112−A1 GASKET, EXHAUST INNER COVER 1 1 1
29 6L2−41113−00−1S OUTER COVER, EXHAUST 1 1 1
30 676−11372−00 .NIPPLE, HOSE 1 1 1
31 6L2−41114−A1 GASKET, EXHAUST OUTER COVER 1 1 1
32 90119−06MA4 BOLT, WITH WASHER 10 10 10
33 90445−10M40 HOSE (L330) 1 1 1
34 6L2−45113−A1 GASKET, UPPER CASING 1 1 1
35 94702−00217 PLUG, SPARK (NGK B7HS−10) 2 FOR USA
94702−00271 PLUG, SPARK (NGK BR7HS−10) 2 2...

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FIG. 3 CRANKSHAFT. PISTON1 6L2−11400−00 CRANKSHAFTASSY 1 1 1N.O/I
2 6L2−11412−00 .CRANK 1 1 1 1
3 6L2−11422−00 .CRANK 2 1 1 1
4 6L2−11432−00 .CRANK 3 1 1 1
5 6L2−11442−00 .CRANK 4 1 1 1
6 93311−632U7 .BALL BEARING 1 1 1
7 93102−26M27 ..OIL SEAL 1 1 1
8 93210−42159 .O−RING 1 1 1
9 93306−305U3 .BEARING 2 2 2
10 6L2−11651−00 .ROD, CONNECTING 2 2 2
11 6L2−11681−00 .PIN, CRANK 1 2 2 2
12 93310−424W9 .BEARING 2 2 2
13 90209−24M15 .WASHER 4 4 4
14 6L2−11515−00 .SEAL, LABYRINTH 1 1 1 1
15 91690−30010.PIN,...

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FIG. 3 CRANKSHAFT. PISTON24 90201−18522 WASHER, PLATE 4 4 4
25 6L2−15396−00−1S HOUSING, OIL SEAL 1 1 1
26 93102−25142 OIL SEAL 1 1 1
27 93101−13M37 OIL SEAL 1 1 1
28 93210−56M80 O−RING 1 1 1
29 97095−06016 BOLT 2 2 2
30 92995−06600 WASHER 2 2 2
PART NO. DESCRIPTION REMARKS REF.
NO.
20MH
25MH
25WC 

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FIG. 4 INTAKE1 6L2−13610−00 REED VALVEASSY 2 2 2
2 6L2−W0004−00 .REED SET 1 1 1
3 97880−05016 SCREW, PAN HEAD 4 4 4
4 92990−05600 WASHER, PLATE 4 4 4
5 6L2−13641−00−94 MANIFOLD 1 1 1 1
6 6L2−13621−00 GASKET, VALVE SEAT 1 1 1
7 97013−06025 BOLT 6 6 6
8 92903−06600 WASHER, PLATE 6 6 6
9 90445−09012 HOSE (L70) 1 1 1
10 90467−08004 CLIP 2 2 2
11 6L2−14198−00 GASKET 2 2 2
12 6L2−14417−00−94 COVER 1 1 1 1
13 6L2−14476−00 SEAL 1 1 1
14 93210−35M86 O−RING 2 2 2
15 97013−05012 BOLT 4 4 4
16 92903−05600...

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FIG. 4 INTAKE28 6A1−83625−51 MARK 5 1 1 FOR CANADA
PART NO. DESCRIPTION REMARKS REF.
NO.
20MH
25MH
25WC