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TOHATSU
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90
TOHATSU 90 Service Manual
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PNo. 003-21036-1
0509 NB 1000
Printrd in Japan
SERVICE3-4.qxd
05.8.24
11:48
AM
ページ1
2
Table of Contents
Section 1 Service Safety
3
Table of Contents
3
Introduction
4
Safety Statements
4
Safety Precautions
5
Workmanship Standards
7
Test Tank Guidlines
9
Section 2 General Service Information
10
General Precautions
11
Abbreviations and Symbols
12
Unit Conversions
13
Service Specifications
14
Engine Specifications
17
Lubrication Chart
20
Periodic Inspections
23
Break-In Procedure
27
Tune-Up Procedure
29
Emergency Stop Switch and Lanyard
30
Operator Alert Systems
31
Synchronization and Linkage Adjustments
34
Anodes - Inspection and Testing
48
Section 3 Fuel System
49
General Precautions
50
Service Specifications
51
Fuel System Requirements
52
Troubleshooting
54
Description of Operation
56
Fuel Tank
59
Fuel Line and Primer
60
Fuel and Oil Filters
61
Fuel Pump
62
Automixing System
65
Carburetor
68
Intake Manifold
72
Section 4 Powerhead
75
General Precautions
76
Service Specifications
77
Troubleshooting
81
Description of Operation
82
Cylinder Compression Test
83
RPM Performance Test
84
Overheat Sensor
85
Water Pressure Sensor
86
Thermostat
88
Recoil Starter
89
Powerhead
91
Section 5 Midsection
115
General Precautions
116
Service Specifications
117
Tiller Steering Handle
119
Lower Engine Cover
123
Driveshaft Housing
124
Stern and Swivel Brackets
130
Section 6 Gearcase
138
General Precautions
139
Service Specifications
140
Water Pump
141
Gearcase
142
Backlash - Shim Adjustment Table
164
Gearcase Repair Procedures
167
Section 7 Electrical System
180
General Precautions
181
Service Specifications
182
Electrical Servicing Standards
186
Troubleshooting
190
Description of Operation
192
Battery Care and Maintenance
196
Ignition System
201
RPM Limitation Test
226
Ignition System Repair Procedures
238
Starting System
253
Charging System
285
General Precautions
301
Air Bleeding Procedure
305
Trim Sender/Trim Meter Test
306
Power Trim/Tilt
308
Troubleshooting
318
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TOHATSU 90 Specifications
General
Starting System
Electric
Steering
Remote
Trim and Tilt
Power Trim and Tilt
Alternator Output
12V
Output
90 hp
Gear Shift
Forward, Neutral, Reverse
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