Power Unit - TOHATSU MFS 60A Service Manual
4 stroke
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Also See for MFS 60A:
- Quick reference manual (15 pages) ,
- Owner's manual (98 pages) ,
- Owner's manual (96 pages)
Table of Contents
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1. Parts Layout ....................................
Engine ............................................................... 5-2
Magneto ............................................................ 5-3
Electric Parts ................................................... 5-4
Fuel system ...................................................... 5-6
Vapor Separator ................................................ 5-8
Intake Manifold ................................................... 5-10
Pulley • Timing Belt ............................................. 5-12
Cylinder Head & Oil Pump................................. 5-13
Cylinder • Crankcase .......................................... 5-15
Piston & Crankshaft .......................................... 5-16
Top Cowl ............................................................ 5-17
2. Inspection Items ...........................
1) Inspection of Compression Pressure ......... 5-18
2) Inspection of Oil Pressure ........................... 5-18
3) Inspection of Valve Clearance ..................... 5-18
4) Removing Power Unit ................................. 5-18
5) Removing Timing Belt and Pulley ............... 5-22
6) Inspection of Timing Belt ........................... 5-22
7) Installation of Pulley and Timing Belt ......... 5-23
8) Removing Cylinder Head ........................... 5-24
9) Inspection of Valve Spring ........................... 5-27
10) Inspection of Valve ....................................... 5-28
11) Inspection of Valve Guide ........................... 5-28
12) Inspection of Valve Seat .............................. 5-29
13) Correction of Valve Seat .............................. 5-30
Rocker Arm Shaft ....................................... 5-32
15) Inspection of Cam Shaft .............................. 5-33
16) Inspection of Cylinder Head........................ 5-34
17) Inspection of Oil Pump .............................. 5-35
5
Power Unit
18) Installation of Valves ................................. 5-36
5-2
19) Installation of Cam Shaft........................... 5-37
20) Installation of Rocker Arm Shaft ............ 5-38
21) Installation of Oil Pump ........................... 5-38
22) Installation of Cylinder Head .................. 5-39
23) Disassembly of Cylinder Block .................. 5-40
24) Removing of Drive Pulley ........................ 5-41
25) Installing of Drive Pulley ........................... 5-41
26) Inspection of Cylinder .............................. 5-41
27) Inspection of Piston Outer Diameter ...... 5-42
29) Inspection of Piston Clearance ............... 5-42
5-18
31) Inspection of Piston Rings ........................ 5-43
32) Inspection of Piston Pins ........................ 5-44
Small End Inner Diameter ........................ 5-44
Big End Side Clearance ........................... 5-44
35) Inspection of Crankshaft ........................ 5-45
Oil Clearance ............................................. 5-46
Oil Clearance ............................................. 5-47
Metal Bearing ............................................. 5-48
Metal Bearing ............................................. 5-49
40) Assembling Piston and Connecting Rod
41) Installation of Power Unit ........................ 5-54
5
5-50
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Table of Contents
