Tohatsu MFS 30 [5/319] Fuel injection syste
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Tohatsu MFS 30 [5/319] Fuel injection syste

iii
25/30 2006
1.Service Information
1
Identification (Engine Serial Number)
…… 1-2
2 Securing of work safety …………… 1-2
1) Fire Prevention ……………………………… 1-2
2) Ventilation …………………………………… 1-2
3) Protection …………………………………… 1-2
4) Genuine Parts ……………………………… 1-2
5) Tools ………………………………………… 1-3
6) Recommendations on service …………… 1-3
7)
Cautions in disassembling and assembling components
… 1-4
3 Tools and Instruments ……………… 1-5
1) Test Propeller ……………………………… 1-5
2) Measuring instruments …………………… 1-5
3) List of Special Tool ………………………… 1-6
4 Pre-delivery Inspection ……………… 1-10
1) Steering Handle …………………………… 1-10
2) Gear Shift …………………………………… 1-10
3) Engine Oil …………………………………… 1-10
4) Gear Oil ……………………………………… 1-10
5) Fuel Line …………………………………… 1-11
6) Rigging ……………………………………… 1-11
7) Inspection of PTT unit ……………………… 1-11
8) Inspection of gas shock absorber ………… 1-11
9)
Inspection of starting switch and stop switch
… 1-12
10) Cooling water check port ………………… 1-13
11) Idling ………………………………………… 1-13
12) Propeller Selection ………………………… 1-13
13) Trim Tab …………………………………… 1-14
5 Break-in Operation ………………… 1-14
6 Test Run ………………………………… 1-15
7 Checks After Test Run …………… 1-15
2.Service Data
1 Outline Dimensions …………………… 2-2
1) Engine Dimensions ………………………… 2-2
2) Transom Bolts ……………………………… 2-3
2 Fuel Injection System………………… 2-4
1) ECU Fuel Feed System …………………… 2-4
3
Engine Lubrication System Diagram
… 2-5
4 Cooling Water System Diagram … 2-6
5 Specifications ………………………… 2-7
6 Maintenance Data …………………… 2-10
7 Tightening Torque Data …………… 2-18
8 Sealant Application Locations … 2-20
3.Maintenance
1 Special Tool ……………………………… 3-2
2 Inspection Schedule ………………… 3-3
3Inspection Items ……………………… 3-4
1) Inspection of Top Cowl …………………… 3-4
2) Inspection of Fuel System Piping ………… 3-4
3) Inspection of Fuel Tank …………………… 3-5
4) Inspection of Fuel Filter …………………… 3-5
5) Replacement of Engine Oil………………… 3-6
6) Replacement of Oil Filter ………………… 3-7
7) Inspection of Gear Oil Quantity …………… 3-8
8) Inspection of Water Pump……………… 3-8
9) Replacement of Gear Oil ……………… 3-10
10)
Inspection of Gear Case (for leakage)
… 3-11
11) Inspection of Timing Belt ……………… 3-12
12) Replacement of Timing Belt …………… 3-13
13) Installation of Timing Belt ……………… 3-15
14) Inspection of Spark Plugs ……………… 3-17
15) Inspection of Compression Pressure … 3-18
16)
Inspection and Adjustment of Valve Clearance
… 3-19
17)
Throttle Cable Adjustment of Throttle Link
… 3-20
18)
Inspection of Shift Lever Gear Operations
… 3-23
19) Inspection of PTT Unit Operation …… 3-25
20)
Inspection of Gas Assistant Unit Operations
… 3-25
21) Inspection of PTT Fluid Quantity ……… 3-26
22) Inspection of Idle Speed ……………… 3-27
23) Inspection of Ignition Timing …………… 3-27
24) Inspection of Anodes …………………… 3-28
25) Replacement of Anodes ……………… 3-28
26) Inspection of Propeller ………………… 3-29
27) Inspection of Thermostat ……………… 3-29
28) Inspection of Cooling Water Passage … 3-30
29) Flushing with Water …………………… 3-31
30) Inspection of Battery …………………… 3-33
31) Greasing Points ………………………… 3-34
4.
Fuel System (Fuel Injection)
1 Special Tools ………………………… 4-2
2 Piping Arrangement Diagram … 4-3
Fuel Hose, Vent Hose, Breather Hose, Cooling Water Hose ……
4-3
3 Parts Layout …………………………… 4-4
Fuel Pump, Fuel Rail, Vapor Separator … 4-4
Intake Manifold ……………………………… 4-7
Magneto & ECU …………………………… 4-8
Electric Parts………………………………… 4-9
Separate Fuel Tank ………………………… 4-11
4 ECU System …………………………… 4-12
(1)
Configuration of ECU System
… 4-12
1) Sensors ………………………………… 4-13
2) Actuators ………………………………… 4-15
3) Control System (ECU) ………………… 4-16
(2) Control System ……………………… 4-16
(3) Fuel Injection Control …………… 4-17
1) Fuel Injection Timing …………………… 4-17
2) Starting Fuel Increase Correction …… 4-18
3)
Acceleration Fuel Increase Correction
… 4-18
4)
Deceleration Fuel Decrease Correction
… 4-18
5)
Correction Based On Intake Air Temperature
… 4-18
6)
Correction Based On Cylinder Cooling Water Temperature
… 4-18
(4)
Control of Fuel Feed Pump (FFP)
… 4-18
(5) Control of Tachometer …………… 4-18
(6)
Warning Buzzer and Lamp (LED),and
Control of Engine Revolution Speed
…… 4-19
1)
Locations of warning buzzer and lamp (LED)
… 4-19
2)
Warning notification, abnormality and action to be taken
… 4-19
MFS25_30_ch00.qxd 06.3.10 2:33 PM ページ 3

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