MFS2B 3.5B 2.5B - Tohatsu Outboard Parts

MFS 2B
2.5B
3.5B
OB NO.002-21052-1
0910 NB 3,000

MFS 2B
2.5B
3.5B
OB NO.002-21052-1
0910 NB 3,000

HOW TO USE THIS PARTS LIST
1. This Parts List contains the component parts of the Tohatsu outboard motors.
2. Please keep the Parts List updated each time when receiving the Service Bulletin
describing the addition, abolition and/or change of parts.
3. Given mark in ( * ) to part number shows assembly or kit part.
4. Marks in this Parts List show.
AR : As required
Ass'y : Assembly
5. Attention to order
Please order painted parts in accordance with following. The parts that fourth
figure of the parts number is "B" or "Q" have painted.
[Example]
POWER HEAD PARTS
3ABB01100-0
Black
LOWER UNIT PARTS
3ABQ61020-0
Aquamarine Blue
6. You don't care that the "UNIQUE" or the "N.A.F.N." parts written in the Remarks
column.

CONTENTS
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
CYLINDERCRANKCASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PISTONCRANKSHAFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CARBURETOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OIL PAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAMSHAFT & VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAGNETO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TILLER HANDLE & THROTTLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECOIL STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRIVE SHAFT HOUSING & GEAR CASE . . . . . . . . . . . . . . . . . . . . . . .
GEAR CASE (DRIVE SHAFT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GEAR CASE (PROPELLER SHAFT) . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIFT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLAMP BRACKET & SWIVEL BRACKET . . . . . . . . . . . . . . . . . . . . . .
INTEGRAL FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COWL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL PARTS & ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLYKIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
3
5
9
11
13
15
17
19
21
23
25
27
31
33
35
37

Fig. 1
CYLINDERCRANKCASE
13
11
12
15
19
Fig.3-7
19
17
18
3
2
5 4
1-2
1-2
1-2
1-1
5
5
4
4
1-2
1-4
1-3
1-1
1-1
14
8
1-3
1-4
1-2
1
6
7
10
16
9 10

Fig. 1
CYLINDERCRANKCASE
13
11
12
15
19
Fig.3-7
19
17
18
3
2
5 4
1-2
1-2
1-2
1-1
5
5
4
4
1-2
1-4
1-3
1-1
1-1
14
8
1-3
1-4
1-2
1
6
7
10
16
9 10

Fig. 2
PISTON & CRANKSHAFT
6
4
10
8
1-1
7
5
11
8
3
1
9-1 9
mark
2

Fig. 2
PISTON & CRANKSHAFT
6
4
10
8
1-1
7
5
11
8
3
1
9-1 9
mark
2

Fig. 3
CARBURETOR
20
17
14
13
Old
1-3B
2
3
2
4
6
10
1-13
1-14
1-15
5
11
12
9
7
1-3A
1-16
1-1
1
16
19
18
8
15
1-11
1-12
1-2
1-10
1-5
1-6
1-4
1-9
1-8
1-7
20

Fig. 3
CARBURETOR
20
17
14
13
Old
1-3B
2
3
2
4
6
10
1-13
1-14
1-15
5
11
12
9
7
1-3A
1-16
1-1
1
16
19
18
8
15
1-11
1-12
1-2
1-10
1-5
1-6
1-4
1-9
1-8
1-7
20

Fig. 3
CARBURETOR
20
17
14
13
Old
1-3B
2
3
2
4
6
10
1-13
1-14
1-15
5
11
12
9
7
1-3A
1-16
1-1
1
16
19
18
8
15
1-11
1-12
1-2
1-10
1-5
1-6
1-4
1-9
1-8
1-7
20

Fig. 3
CARBURETOR
20
17
14
13
Old
1-3B
2
3
2
4
6
10
1-13
1-14
1-15
5
11
12
9
7
1-3A
1-16
1-1
1
16
19
18
8
15
1-11
1-12
1-2
1-10
1-5
1-6
1-4
1-9
1-8
1-7
20

Fig. 4
OIL PAN
Old
20
14
13
20
19
7
15
Old
21
17
16
8
17
5
3
4
2
1
1-1
6
2
6
6
6
18
11
6
10
10
9
12

Fig. 4
OIL PAN
Old
20
14
13
20
19
7
15
Old
21
17
16
8
17
5
3
4
2
1
1-1
6
2
6
6
6
18
11
6
10
10
9
12

Fig. 5
CAMSHAFT & VALVE
8
7
6
4
2
9
14
15
16
8
7
3
9
6
11
13
5
1
10
12
11
10
mark
A
A-view

Fig. 5
CAMSHAFT & VALVE
8
7
6
4
2
9
14
15
16
8
7
3
9
6
11
13
5
1
10
12
11
10
mark
A
A-view

Fig. 6
MAGNETO
4
5
8
9
3
1
2-1
2
7
6
6-1

Fig. 6
MAGNETO
4
5
8
9
3
1
2-1
2
7
6
6-1

Fig. 7
TILLER HANDLE & THROTTLE
23
25
24
22
21
20
16
16
Old
Fig.1-17
27
26
26
19
4
2
5
2
3
3
1
6
17
7
8
13 14
12
15
10
11
9
18

Fig. 7
TILLER HANDLE & THROTTLE
23
25
24
22
21
20
16
16
Old
Fig.1-17
27
26
26
19
4
2
5
2
3
3
1
6
17
7
8
13 14
12
15
10
11
9
18

Fig. 8
RECOIL STARTER
2
3
4
2
3
1
1-3
1-11
1-1
1-12
1-2
1-10
1-9
1-5
1-5
1-4
1-4
1-8
1-6
1-7

Fig. 8
RECOIL STARTER
2
3
4
2
3
1
1-3
1-11
1-1
1-12
1-2
1-10
1-9
1-5
1-5
1-4
1-4
1-8
1-6
1-7

Fig. 9
DRIVE SHAFT HOUSING & GEAR CASE
2
1-1
2
4
1
6
5
3
24
23
22
7
13
12
11
25
10
9
8
15
18
19
25
16-1
16
14
17
20
17
21
19
18

Fig. 9
DRIVE SHAFT HOUSING & GEAR CASE
2
1-1
2
4
1
6
5
3
24
23
22
7
13
12
11
25
10
9
8
15
18
19
25
16-1
16
14
17
20
17
21
19
18

Fig. 10
GEAR CASE (DRIVE SHAFT)
17-1
17
1
4
1-1
10
12
11
18
5
6
3
7
19
Projection
8
9
13
14
2
15
16

Fig. 10
GEAR CASE (DRIVE SHAFT)
17-1
17
1
4
1-1
10
12
11
18
5
6
3
7
19
Projection
8
9
13
14
2
15
16

Fig. 11
GEAR CASE (PROPELLER SHAFT)
11
10
8-1
9
12
8-4
8-2
8-3
8

Fig. 11
GEAR CASE (PROPELLER SHAFT)
11
10
8-1
9
12
8-4
8-2
8-3
8

Fig. 12
SHIFT
1
5
2
7
16 15
3
4
2
6
12
11
14
13
17
9
10
18
8
10

Fig. 12
SHIFT
1
5
2
7
16 15
3
4
2
6
12
11
14
13
17
9
10
18
8
10

Fig. 13
CLAMP BRACKET & SWIVEL BRACKET
13
4
21
22
19 17
24
25
31
1
32
20
18
23
30
27
14
6
26
15
28
16
29
8 9
7
6
1
11
5
10
2
2-3
2-1
9
8
2-2
3
12

Fig. 13
CLAMP BRACKET & SWIVEL BRACKET
13
4
21
22
19 17
24
25
31
1
32
20
18
23
30
27
14
6
26
15
28
16
29
8 9
7
6
1
11
5
10
2
2-3
2-1
9
8
2-2
3
12

Fig. 13
CLAMP BRACKET & SWIVEL BRACKET
13
4
21
22
19 17
24
25
31
1
32
20
18
23
30
27
14
6
26
15
28
16
29
8 9
7
6
1
11
5
10
2
2-3
2-1
9
8
2-2
3
12

Fig. 13
CLAMP BRACKET & SWIVEL BRACKET
13
4
21
22
19 17
24
25
31
1
32
20
18
23
30
27
14
6
26
15
28
16
29
8 9
7
6
1
11
5
10
2
2-3
2-1
9
8
2-2
3
12

Fig. 14
INTEGRAL FUEL TANK
15
14-1
16
14
14-2
1
5
3
4
11
Carburetor
2
10
Old
6
13
20
17
11
7
9
12
Old
21
20
18
8
19
13

Fig. 14
INTEGRAL FUEL TANK
15
14-1
16
14
14-2
1
5
3
4
11
Carburetor
2
10
Old
6
13
20
17
11
7
9
12
Old
21
20
18
8
19
13

Fig. 15
COWL
13-7
13-2
13-4
13-5
13-3
13-6
13-6
13-6
13-1
13-6
13
4
11
8
7
6
3 2
10
9
1
12
15
14
5

Fig. 15
COWL
13-7
13-2
13-4
13-5
13-3
13-6
13-6
13-6
13-1
13-6
13
4
11
8
7
6
3 2
10
9
1
12
15
14
5

Fig. 16
OPTIONAL PARTS & ACCESSORIES
1
2
3
4
5
6
7 8
9

Fig. 16
OPTIONAL PARTS & ACCESSORIES
1
2
3
4
5
6
7 8
9

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Fig. 17
ASSEMBLY KIT
1
9
Carburetor Repair Kit
2
Power Head Gasket Set
3
Water Pump Repair Kit
6
Lower Unit Gasket Set
7
8
4
5

Note

Copyright © 2009 Tohatsu Corporation. All rights reserved. No part of this manual may be
reproduced or transmitted in any form or by any means without the express written permission
of Tohatsu Corporation.

Website :
MFS 2B
2.5B
3.5B
002-21052-1
0910-NB3000