TOHATSU MFS25 Service Manual page 8

2) Inspection of Starter Solenoid ............... 8-21
3) Disassembly of Starter Motor.................. 8-21
4) Inspection of Starter Motor Pinion ............ 8-22
5) Inspection of Armature ........................ 8-22
6) Inspection of Brushes ........................... 8-23
7) Inspection of Starter Motor Operation ...... 8-23
7 Battery Charging System
1) Inspection of Alternator ........................ 8-24
2) Inspection of Rectifier ........................... 8-24
8 ECU Coupler
9.Troubleshooting
1 Troubleshooting List
2 Power Unit
State 1 : Engine will not start or is a little hard to start. ... 9-3
Starting System .................................... 9-3
Ignition System .................................... 9-5
Fuel System ....................................... 9-7
State 2 : Full throttle engine revolution speed is low.
Engine revolution speed fall off.Engine stalls ... 9-9
Ignition System .................................... 9-10
Fuel System ....................................... 9-11
Lubrication System .............................. 9-12
Cooling System .................................... 9-13
State 3 : Engine rotation is unstable or hunting occurs
in low speed range. .............................. 9-14
Ignition System .................................... 9-15
Fuel System ....................................... 9-16
3 PTT Unit
............................................. 9-17
State 1 : PTT will not operate. ........................ 9-17
State 2 : PTT is not capable of sustaining outboard motor.... 9-18
4 3AC Diagnosis ..............................
1.Set Up ................................................ 9-19
1) Software Install ................................. 9-20
2) If putting CD into CD drive will not cause
installation software to start. .................. 9-21
3) Diagnosis File Information .................. 9-21
2.Hardware Connection ........................... 9-22
1) Preparation .................................... 9-22
3.Position of ON/OFF switch for function
test and running (Drop) test .................. 9-23
4.Operating Procedure ........................... 9-24
1) Start Up .......................................... 9-24
2) Menu Selection ................................. 9-24
3) Preface and Introduction ..................... 9-24
4) Setting Communication (COM) Port ...... 9-25
5) Monitoring ECU data ........................ 9-26
6) Monitoring History and failure code retrieval ... 9-27
7) Function Test.................................... 9-28
8) Running Test (Drop Test) .................. 9-29
9) Air Purging from high pressure fuel circuit ...... 9-30
10) Explanation of Error Code.................. 9-31
11) Exit Diagnostic .............................. 9-31
vi
............... 8-24
.................................... 8-25
..................... 9-2
....................................... 9-3
10.Accessories
1 Remote Control Components
1) Installation of Remote Control Cable (Engine Side)
Remote Control Model.............................. 10-2
2 Installation of Meters and Battery
1) Installation of Meters ........................ 10-5
2) Installation of Battery ........................ 10-5
3) Wiring Diagram of Remote and Control Meters... 10-6
3 Operation
1) Warning Indication ........................... 10-7
11.Wiring Diagram
1 Wiring Chart..............................
2 MF/MFG Model ........................
3 EF/EFG/EFT Model ..................
4 EP/EPG/EPT Model ..................
9-19
...... 10-2
... 10-5
.................................... 10-7
11-2
11-3
11-4
11-5
25/30 2006