TOHATSU MFS 9.8B Service Manual

vii
4st 8/9.8 2016
14) Inspection of Reverse Lock
(MF, EF & EP Models) …………………………… 7-25
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Clamp Bracket
(For EFT & EPT Models) ……………………………… 7-27
Power Tilt Ass'y ………………………………………… 7-30
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Manual Tilt Operation ………………………………… 7-31
Tilt Up Operation ……………………………………… 7-32
Tilt Down ……………………………………………… 7-33
Shock Absorber Valve ………………………………… 7-34
Thermal Valve ………………………………………… 7-35
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1) Removal, Check and
Repair of Power Tilt Motor ………………………… 7-39
2) Continuity Test ……………………………………… 7-40
3) Inspection of Motor ………………………………… 7-40
4) Replacement of Motor ……………………………… 7-40
5) Assembling Power Tilt Motor ……………………… 7-41
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1) Disassembly of Power Tilt Pump ………………… 7-42
2) Assembling Power Tilt Pump ……………………… 7-44
3) Air-Purging PT Unit
(Separated from Outboard Motor) ………………… 7-46
4) Installation of Power Tilt Ass'y ……………………… 7-47
5) Inspection of PT Relay ……………………………… 7-49
6) Inspection of PT Switch …………………………… 7-50
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Port Side View ………………………………………… 8-3
Bow Side View ………………………………………… 8-4
Top View ………………………………………………… 8-5
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Magneto • Electric Parts ……………………………… 8-6
Tiller Handle …………………………………………… 8-8
Bottom Cowl …………………………………………… 8-9
Remote Control Parts ………………………………… 8-10
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1) Inspection of Ignition Spark ……………………… 8-11
2) Inspection of Plug Cap …………………………… 8-12
3) Inspection of Ignition Coils ……………………… 8-12
4) Inspection of Pulser Coil ………………………… 8-13
5) Inspection of Exciter Coil ………………………… 8-14
6) Inspection of Oil Pressure Switch ……………… 8-14
7) Inspection of Neutral Switch
(Tiller Handle Model) ……………………………… 8-15
8) Inspection of Start Switch
(Tiller Handle Model) ……………………………… 8-15
9) Inspection of Stop Switch ………………………… 8-16
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1) Inspection of PT Relay …………………………… 8-16
2) Inspection of PT Switch …………………………… 8-17
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1) Inspection of Fuse ………………………………… 8-17
2) Inspection of Starter Solenoid …………………… 8-18
3) Inspection of Starter Motor Pinion ……………… 8-18
4) Disassembly of Starter Motor …………………… 8-18
5) Inspection of Armature …………………………… 8-19
6) Inspection of Brushes …………………………… 8-20
7)
Inspection of Starter Motor Operation …………… 8-20
8)
Inspection of Choke Solenoid
(Some Models Only)
……………………………… 8-20
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1) Inspection of Charge Coil ………………………… 8-21
2) Inspection of Rectifier …………………………… 8-21
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1) Inspection of Wire Harness ……………………… 8-22
2) Inspection of CD Unit ……………………………… 8-22
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1 Engine will not start …………………………………… 9-3
Starting System …………………………………… 9-3
Ignition System …………………………………… 9-5
Fuel System ……………………………………… 9-7
Compression Pressure …………………………… 9-8
2 Engine starts but stalls soon. ……………………… 9-9
Fuel System ……………………………………… 9-9
Ignition System …………………………………… 9-10
Compression Pressure …………………………… 9-11
3 Idle engine speed will not stabilize. ……………… 9-12
4 Rapid opening of throttle fails acceleration. ………… 9-13
5 Gear shifting cannot be made normally.
………… 9-14
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PT unit will not operate. ……………………………… 9-15
PT is not capable of sustaining
outboard motor. ……………………………………… 9-16
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MF/EF Model ……………………………………… 10-3
EP Model …………………………………………… 10-4
EFT Model …………………………………………… 10-5
EPT Model …………………………………………… 10-6

TOHATSU MFS 9.8B Specifications

General

Brand	TOHATSU
Model	MFS 9.8B
Category	Outboard Motor
Language	English