Yamaha F50a Ft50b Ft50c Outboards Factory Service Repair Workshop Manual Instant Download

Description

Yamaha F50a Ft50b Ft50c Outboards Factory Service Repair Workshop Manual Instant Download

FILE DETAILS:

LANGUAGE:ENGLISH
PAGES:403
DOWNLOADABLE:YES
FILE TYPE:PDF

YAMAHA F50A FT50B FT50C OUTBOARDS FACTORY SERVICE REPAIR WORKSHOP MANUAL INSTANT DOWNLOAD:

IMAGES PREVIEW OF THE MANUAL:

DESCRIPTION:

Yamaha F50a Ft50b Ft50c Outboards Factory Service Repair Workshop Manual Instant Download

FOREWORD:

• This manual has been prepared by Yamaha primarily for use by Yamaha dealers and their trained mechanics when performing maintenance procedures and repairs to Yamaha equipment. It has been written to suit the needs of persons who have a basic understanding of the mechanical and electrical concepts and procedures inherent in the work, for without such knowledge attempted repairs or service to the equipment could render it unsafe or unfit for use.
• Because Yamaha has a policy of continuously improving its products, models may differ in detail from the descriptions and illustrations given in this publication. Use only the latest edition of this manual. Authorized Yamaha dealers are notified periodically of modifications and significant changes in specifications and procedures, and these are incorporated in successive editions of this manual.

How to use this manual :

Manual format
The format of this manual has been designed to make service procedures clear and easy to understand.
Use the information below as a guide for effective and quality service.
1 Parts are shown and detailed in an exploded diagram and are listed in the components list.
2 Tightening torque specifications are provided in the components list at the beginning of each section and after a numbered step with tightening instructions.
3 Symbols are used to indicate important aspects of a procedure, such as the grade of lubricant and lubrication point.
4 The components list consist of parts and part quantities, as well as bolt and screw dimensions.
5 Service points regarding removal, checking, and installation are shown in individual illustrations to explain the relevant procedure.

TABLE OF CONTENTS:

Yamaha F50a Ft50b Ft50c Outboards Factory Service Repair Workshop Manual Instant Download

How to use this manual 1-1
Manual format 1-1
Symbols 1-2
Safety while working 1-3
Fire prevention 1-3
Ventilation 1-3
Self-protection 1-3
Parts, lubricants, and sealants 1-3
Good working practices 1-4
Disassembly and assembly 1-4
Identification 1-5
Applicable models 1-5
Serial number 1-5
Features and benefits 1-6
Newly designed four carburetors 1-6
CDI unit with microcomputer 1-7
Lower unit 1-8
Technical tips 1-10
Carburetor 1-10
Acceleration pump 1-15
Ignition system 1-17
Ignition timing control 1-19
Power trim and tilt 1-22
Propeller selection 1-32
Propeller size 1-32
Selection 1-32
Predelivery checks 1-33
Checking the fuel system 1-33
Checking the gear oil 1-33
Checking the engine oil 1-33
Checking the battery 1-33
Checking the outboard motor mounting position 1-34
Checking the remote control cables 1-34
Checking the steering wheel/tiller handle 1-34
Checking the gearshift and throttle operation 1-34
Checking the tilt system 1-35
Checking the engine start switch and
engine stop switch/engine shut-off switch 1-35
Checking the pilot water outlet 1-35
Test run 1-35
Break-in 1-36
After test run 1-36
General specifications 2-1
Maintenance specifications 2-5
Power unit 2-5
Lower unit 2-9
Electrical 2-9
Power unit 2-12
Lower unit 2-16
Electrical 2-16
Dimensions 2-19
Tightening torques 2-29
Specified torques 2-29
General torques 2-31
Special service tools 3-1
Maintenance interval chart 3-3
Top cowling 3-4
Checking the top cowling 3-4
Fuel system 3-4
Checking the fuel joint and fuel hoses (fuel joint-to-carburetor) 3-4
Checking the fuel filter 3-5
Power unit 3-5
Checking the engine oil 3-5
Replacing the engine oil 3-5
Checking the timing belt 3-7
Replacing the timing belt 3-7
Checking the valve clearance 3-10
Checking the spark plugs 3-11
Checking the thermostat 3-12
Checking the cooling water passage 3-13
Control system 3-13
Checking the throttle cable operation 3-13
Checking the gearshift operation 3-14
Checking the engine idle speed 3-15
Checking the ignition timing 3-15
Power trim and tilt unit 3-16
Checking the power trim and tilt operation 3-16
Checking the power trim and tilt fluid level 3-16
Lower unit 3-17
Checking the gear oil level 3-17
Replacing the gear oil 3-17
Checking the lower unit (for air leakage) 3-19
Checking the propeller 3-19
General 3-19
Checking the anodes 3-19
Checking the battery 3-20
Lubrication 3-21
Special service tools 4-1
Hose routing 4-2
Fuel and blowby hoses 4-2
Cooling water hose 4-3
Fuel line 4-5
Fuel filter and fuel pump 4-7
Checking the fuel pump 4-9
Disassembling the fuel pump 4-9
Checking the diaphragm and valves 4-10
Assembling the fuel pump 4-10
Carburetor unit 4-11
Carburetor 4-17
Checking the carburetor 4-19
Checking the Prime Start 4-20
Assembling the carburetor 4-20
Adjusting the throttle link rod 4-21
Adjusting the pilot screw 4-22
Synchronizing the carburetors 4-23
Adjusting the dash-pot (acceleration pump) 4-24
Troubleshooting 5-1
Special service tools 5-10
Power unit 5-13
Checking the compression pressure 5-25
Checking the oil pressure 5-25
Removing the power unit 5-26
Timing belt and sprockets 5-29
Removing the timing belt and sprockets 5-31
Checking the timing belt and sprockets 5-32
Installing the timing belt and sprockets 5-32
Cylinder head 5-35
Removing the cylinder head 5-39
Checking the valve springs 5-40
Checking the valves 5-40
Checking the valve guides 5-41
Replacing the valve guides 5-41
Checking the valve seat 5-42
Refacing the valve seat 5-43
Checking the rocker arms and rocker arm shaft 5-45
Checking the camshaft 5-45
Checking the cylinder head 5-46
Checking the oil pump 5-47
Installing the valves 5-47
Installing the camshaft 5-48
Installing the rocker arm assembly 5-49
Installing the cylinder head 5-49
Special service tools 6-1
Lower unit (F50/F50A) 6-7
Removing the lower unit 6-9
Water pump and propeller shaft housing (F50/F50A) 6-11
Removing the water pump and propeller shaft housing assembly 6-13
Disassembling the propeller shaft housing 6-13
Disassembling the propeller shaft assembly 6-14
Checking the water pump 6-14
Checking the propeller shaft housing 6-15
Checking the propeller shaft 6-15
Assembling the propeller shaft assembly 6-16
Assembling the propeller shaft housing 6-16
Installing the propeller shaft housing 6-18
Installing the water pump 6-18
Drive shaft and lower case (F50/F50A) 6-21
Removing the drive shaft 6-23
Disassembling the drive shaft assembly 6-23
Disassembling the forward gear 6-23
Disassembling the lower case 6-24
Checking the pinion and forward gear 6-25
Checking the bearings 6-25
Checking the drive shaft 6-25
Checking the shift rod and shift cam 6-25
Checking the lower case 6-25
Assembling the lower case 6-25
Assembling the forward gear 6-27
Assembling the drive shaft 6-27
Installing the drive shaft 6-28
Installing the lower unit 6-28
Shimming (F50) (for USA and Canada) 6-31
Shimming 6-32
Selecting the pinion shims 6-32
Selecting the forward gear shims 6-33
Selecting the reverse gear shims 6-34
Shimming (F50A) (for worldwide) 6-35
Shimming 6-36
Selecting the pinion shims 6-36
Selecting the forward gear shims 6-37
Selecting the reverse gear shims 6-38
Troubleshooting 7-1
Special service tools 7-4
Tiller handle (F50/F50A, T50/FT50B) 7-5
Checking the throttle cable and shift cable 7-15
Assembling the tiller handle 7-15
Tiller handle (FT50C) 7-17
Checking the throttle cable and shift rod 7-23
Assembling the tiller handle 7-23
Lubricating the throttle gear 7-23
Bottom cowling 7-25
Checking the shift rod assembly operation 7-29
Upper case 7-31
Disassembling the oil pan 7-39
Checking the oil strainer and the relief valve 7-39
Assembling the oil pan 7-39
Installing the upper case 7-41
Clamp brackets 7-43
Removing the clamp brackets 7-45
Installing the clamp brackets 7-45
Adjusting the trim sensor 7-46
Swivel bracket and steering arm 7-47
Removing the steering arm 7-49
Installing the steering arm 7-49
Power trim and tilt unit 7-51
Removing the power trim and tilt/hydro tilt 7-53
Tilt cylinder and trim cylinder 7-55
Trim cylinder 7-57
Troubleshooting 8-1
Special service tools 8-2
Checking the electrical components 8-4
Measuring the peak voltage 8-4
Measuring the lower resistance 8-4
Electrical components 8-5
Starboard and port views 8-5
Front view 8-6
Top view 8-7
Tiller handle model (F50/F50A, T50/FT50B) 8-8
Tiller handle model (FT50C) 8-9
Wiring harness 8-10
Ignition system and Ignition control system 8-11
Checking the ignition spark gap 8-13
Checking the spark plug caps 8-14
Checking the ignition coil 8-14
Checking the CDI unit 8-15
Checking the charge coil 8-15
Checking the pulser coil 8-16
Checking the pulser coil air gap 8-16
Checking the engine start switch 8-17
Checking the engine shut-off switch 8-17
Checking the thermoswitch 8-18
Checking the oil pressure switch 8-18
Starting system 8-19
Checking the fuse 8-20
Checking the wiring harness (10 pins) 8-20
Checking the neutral switch 8-20
Checking the starter relay 8-20
Starter motor 8-21
Removing the starter motor pinion 8-23
Checking the starter motor pinion 8-23
Checking the armature 8-23
Checking the brushes 8-24
Checking the starter motor operation 8-24
Charging system 8-25
Checking the lighting coil 8-26
Checking the Rectifier Regulator 8-26

PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted