YAMAHA F2.5C Manuals

Manuals and User Guides for YAMAHA F2.5C. We have 4 YAMAHA F2.5C manuals available for free PDF download: Service Manual, Owner's Manual

Yamaha F2.5C Service Manual (184 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 10.95 MB

General Information

3
- Table of Contents
  3
- General Information
  5
- How to Use this Manual
  6
- Manual Format
  6
- Symbols
  7
- Safety While Working
  8
- Fire Prevention
  8
- Ventilation
  8
- Self-Protection
  8
- Parts, Lubricants, and Sealants
  8
- Good Working Practices
  9
- Disassembly and Assembly
  9
- Propeller Size
  10
- Propeller Selection
  10
- Serial Number
  10
- Applicable Models
  10
- Identification
  10
- Selection
  11
- Predelivery Checks
  11
- Checking the Fuel System
  11
- Checking the Engine Oil Level
  11
- Checking the Gear Oil Level
  11
- Checking the Outboard Motor Mounting Height
  12
- Checking the Remote Control Cables (Remote Control Model)
  12
- Checking the Steering System
  13
- Checking the Gear Shift and Throttle Operation
  13
- Checking the Engine Stop Lanyard Switch
  14
- Checking the Cooling Water Pilot Holes
  14
- Test Run
  14
- After Test Run
  15
- Break-In
  15
Spec Specifications

17
- Specifications
  17
- General Specifications
  18
- Maintenance Specification
  20
- Power Unit
  20
- Electrical
  24
- Lower Unit
  24
- Dimensions
  26
- Specified Torques
  28
- Tightening Torques
  28
- General Torques
  30
Table of Contents

31
- Chk Adj
  32
- Periodic Checks and Adjustments
  32
- Special Service Tools
  32
- Maintenance Interval Chart
  33
- Checking the Fuel Filter
  34
- Checking the Fuel Joint and Fuel Hoses (Fuel Joint-To-Carburetor)
  34
- Checking the Top Cowling
  34
- Fuel System
  34
- Top Cowling
  34
- Changing the Engine Oil
  35
- Checking the Engine Oil
  35
- Power Unit
  35
- Checking the Timing Belt
  36
- Replacing the Oil Filter
  36
- Checking the Spark Plugs
  37
- Checking the Thermostat
  37
- Adjusting the Throttle Link
  38
- Checking the Cooling Water Passage
  38
- Control System
  38
- Adjusting the Throttle Cable (Remote Control Model)
  39
- Adjusting the Throttle Cables (Tiller Handle Model)
  39
- Checking the Gear Shift Operation (Remote Control Model)
  40
- Checking the Gear Shift Operation (Tiller Handle Model)
  40
- Checking the Start-In-Gear Protection
  40
- Checking the Engine Idle Speed
  41
- Checking the Ignition Timing
  41
- Bracket
  42
- Checking the Gear Oil Level
  42
- Checking the Tilt Operation
  42
- Chk Adj
  42
- Lower Unit
  42
- Changing the Gear Oil
  43
- Checking the Lower Unit for Air Leakage
  43
- Checking the Propeller
  43
- Checking the Anodes
  44
- General
  44
- Lubricating the Outboard Motor
  44
Fuel Fuel System

45
- Fuel
  45
- Fuel System
  46
- Special Service Tools
  46
- Hose Routing
  47
- Fuel Hoses and Fuel Filter
  48
- Fuel Pump
  49
- Checking the Fuel Pump
  50
- Disassembling the Fuel Pump
  50
- Assembling the Fuel Pump
  51
- Checking the Diaphragms and Valves
  51
- Checking the Fuel Joint
  52
- Carburetor Unit
  53
- Carburetor
  54
- Checking the Carburetor
  56
- Removing the Carburetor
  56
- Assembling the Carburetor
  57
- Checking the Prime Start
  57
- Adjusting the Throttle Stop Screw
  58
Powr Power Unit

60
- Powr
  60
- Power Unit
  62
- Special Service Tools
  62
- Checking the Compression Pressure
  64
- Checking the Oil Pressure
  64
- Power Unit
  64
- Checking the Valve Clearance
  65
- Assembling the Manual Starter
  74
- Checking the Spiral Spring
  74
- Disassembling the Manual Starter
  74
- Measuring the Starter Rope
  74
- Installing the Starter Rope
  75
- Removing the Timing Belt and Sprockets
  76
- Checking the Timing Belt and Sprockets
  78
- Installing the Sprockets and Timing Belt
  78
- Removing the Power Unit
  79
- Cylinder Head
  81
- Removing the Cylinder Head
  84
- Checking the Valve Springs
  85
- Checking the Valves
  85
- Checking the Valve Guides
  86
- Replacing the Valve Guides
  86
- Checking the Valve Seat
  87
- Refacing the Valve Seat
  87
- Checking the Rocker Arms and Rocker Arm Shaft
  89
- Checking the Camshaft
  90
- Checking the Cylinder Head
  90
- Checking the Oil Pump
  91
- Installing the Valves
  91
- Installing the Camshaft
  92
- Installing the Oil Pump
  93
- Installing the Rocker Arm Shaft Assembly
  93
- Cylinder Block
  94
- Disassembling the Cylinder Block
  97
- Checking the Balancer
  98
- Checking the Cylinder Bore
  98
- Checking the Piston Diameter
  98
- Checking the Piston Clearance
  99
- Checking the Piston Rings
  99
- Checking the Piston Pin
  100
- Checking the Piston Pin Boss Bore
  100
- Checking the Piston Ring Grooves
  100
- Checking the Piston Ring Side Clearance
  100
- Checking the Connecting Rod Big End Side Clearance
  101
- Checking the Connecting Rod Small End Inside Diameter
  101
- Checking the Crankshaft
  101
- Checking the Crankpin Oil Clearance
  102
- Checking the Crankshaft Main Journal Oil Clearance
  103
- Selecting the Connecting Rod Bearing
  103
- Selecting the Crankshaft Main Bearing
  104
- Assembling the Pistons and Cylinder Block
  105
- Installing the Cylinder Head
  108
- Installing the Power Unit
  110
Lowr Lower Unit

113
- Lowr
  113
- Lower Unit
  114
- Special Service Tools
  114
- Lower Unit
  116
- Removing the Lower Unit
  120
- Removing the Water Pump
  120
- Checking the Water Pump
  121
- Propeller Shaft Housing
  122
- Disassembling the Propeller Shaft Assembly
  124
- Disassembling the Propeller Shaft Housing
  124
- Removing the Propeller Shaft Housing Assembly
  124
- Assembling the Propeller Shaft Assembly
  125
- Checking the Propeller Shaft and Shift Rod
  125
- Checking the Propeller Shaft Housing
  125
- Disassembling the Oil Seal Housing
  125
- Assembling the Propeller Shaft Housing
  126
- Assembling the Oil Seal Housing
  127
- Disassembling the Drive Shaft
  129
- Disassembling the Forward Gear
  129
- Disassembling the Lower Case
  129
- Drive Shaft and Lower Case
  129
- Removing the Drive Shaft
  129
- Assembling the Lower Case
  130
- Checking the Bearings
  130
- Checking the Drive Shaft
  130
- Checking the Lower Case
  130
- Checking the Pinion and Forward Gear
  130
- Assembling the Drive Shaft
  131
- Assembling the Forward Gear
  131
- Installing the Pinion
  132
- Installing the Propeller Shaft Housing
  132
- Installing the Water Pump and Shift Rod
  132
- Installing the Lower Unit
  134
- Shimming
  136
- Selecting the Pinion Shims
  137
- Selecting the Forward Gear Shims
  138
- Selecting the Reverse Gear Shims
  139
- Backlash
  140
- Measuring the Forward and Reverse Gear Backlash
  140
Brkt Bracket Unit

143
- Brkt
  143
- Assembling the Tiller Handle
  146
- Bracket Unit
  146
- Tiller Handle
  146
- Bottom Cowling
  147
- Upper Case, Steering Arm
  149
- Assembling the Oil Pan
  153
- Checking the Oil Pan
  153
- Checking the Oil Strainer
  153
- Disassembling the Oil Pan
  153
- Draining the Engine Oil
  153
- Removing the Steering Arm
  154
- Installing the Steering Arm
  155
- Installing the Upper Case
  155
- Clamp Brackets, Swivel Bracket
  156
- Assembling the Swivel Bracket
  159
- Disassembling the Swivel Bracket
  159
- Removing the Clamp Brackets
  159
- Installing the Clamp Brackets
  160
Elec Electrical Systems

161
- Elec
  161
- Electrical Systems
  162
- Special Service Tools
  162
- Checking the Electrical Components
  163
- Measuring the Lower Resistance
  163
- Measuring the Peak Voltage
  163
- Electrical Components
  164
- Front and Aft Views
  164
- Port and Starboard Views
  165
- Wiring Diagram
  166
- Checking the Ignition Coil
  168
- Checking the Ignition Spark Gap
  168
- Checking the Spark Plug Caps
  168
- Checking the CDI Unit
  169
- Checking the Pulser Coil
  169
- Checking the Charge Coil
  170
- Checking the Lighting Coil
  170
- Checking the Power Bobbin
  170
- Checking the Engine Stop Lanyard Switch
  171
- Checking the Oil Pressure Switch
  171
- Checking the Thermo Sensor
  171
- Checking the Oil Pressure Warning Indicator
  172
- Trbl Shtg
  173

Yamaha F2.5C Owner's Manual (88 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 3.43 MB

Important Manual Information
3
Table of Contents
4
Safety Information

7
- Outboard Motor Safety
  7
  - Propeller
    7
  - Rotating Parts
    7
  - Hot Parts
    7
  - Electric Shock
    7
  - Power Trim and Tilt
    7
  - Engine Shut-Off Cord (Lanyard)
    7
  - Gasoline
    7
  - Gasoline Exposure and Spills
    8
  - Carbon Monoxide
    8
  - Modifications
    8
- Boating Safety
  8
  - Alcohol and Drugs
    8
  - Personal Flotation Devices
    8
  - People in the Water
    8
  - Passengers
    8
  - Overloading
    8
  - Avoid Collisions
    9
  - Weather
    9
  - Passenger Training
    9
  - Boating Safety Publications
    9
  - Laws and Regulations
    9
General Information

10
- Identification Numbers Record
  10
  - Outboard Motor Serial Number
    10
  - Key Number
    10
- EC Declaration of Conformity (Doc)
  10
- CE Marking
  11
- C-Tick Label
  11
- Read Manuals and Labels
  12
  - Warning Labels
    12
Specifications and Requirements

15
- Specifications
  15
- Installation Requirements
  17
  - Boat Horsepower Rating
    17
  - Mounting Motor
    17
- Remote Control Requirements
  18
- Battery Requirements
  18
  - Battery Specifications
    18
  - Mounting Battery
    18
  - Multiple Batteries
    18
  - Without a Rectifier or Rectifier Regulator
    18
- Propeller Selection
  18
- Start-In-Gear Protection
  19
- Engine Oil Requirements
  20
- Fuel Requirements
  20
  - Gasoline
    20
- Muddy or Acidic Water
  20
- Anti-Fouling Paint
  21
- Motor Disposal Requirements
  21
- Emergency Equipment
  21
Components

22
- Components Diagram
  22
  - Fuel Tank
    23
  - Fuel Joint
    23
  - Fuel Gauge
    23
  - Fuel Tank Cap
    23
  - Air Vent Screw
    23
  - Remote Control Box
    23
  - Remote Control Lever
    23
  - Neutral Interlock Trigger
    24
  - Neutral Throttle Lever
    24
  - Tiller Handle
    24
  - Gear Shift Lever
    24
  - Throttle Grip
    25
  - Throttle Indicator
    25
  - Throttle Friction Adjuster
    25
  - Engine Shut-Off Cord (Lanyard) and Clip
    26
  - Engine Stop Button
    27
  - Manual Starter Handle
    27
  - Starter Button
    27
  - Main Switch
    27
  - Steering Friction Adjuster
    27
  - Steering Friction Adjuster
    28
  - Power Trim and Tilt Switch on Remote Control or Tiller Handle
    29
  - Power Trim and Tilt Switch on Bottom Engine Cowling
    29
  - Trim Tab with Anode
    29
  - Trim Tab
    30
  - Trim Rod (Tilt Pin)
    30
  - Tilt Lock Mechanism
    31
  - Tilt Support Knob
    31
  - Tilt Support Bar
    31
  - Top Cowling Lock Lever(S) (Turn Type)
    32
  - Flushing Device
    32
  - Alert Indicator
    32
Instruments and Indicators

33
- Indicators
  33
  - Low Oil Pressure-Alert Indicator
    33
Engine Control System

34
- Alert System
  34
  - Overheat Alert
    34
  - Low Oil Pressure Alert
    34
Installation

36
- Mounting the Outboard Motor
  36
- Clamping the Outboard Motor
  37
Operation

39
- First-Time Operation
  39
  - Fill Engine Oil
    39
  - Breaking in Engine
    39
  - Getting to Know Your Boat
    39
- Checks before Starting Engine
  39
  - Fuel Level
    40
  - Remove Cowling
    40
  - Fuel System
    40
  - Controls
    40
  - Engine Shut-Off Cord (Lanyard)
    41
  - Engine Oil
    41
  - Engine
    42
  - Flushing Device
    42
  - Install Cowling
    42
  - Power Trim and Tilt System
    43
  - Battery
    43
- Filling Fuel
  43
- Operating Engine
  44
  - Feeding Fuel (Portable Tank)
    44
  - Starting Engine
    45
- Checks after Starting Engine
  49
  - Cooling Water
    49
- Warming up Engine
  49
  - Manual Start and Electric Start Models
    49
- Checks after Engine Warm-Up
  49
  - Shifting
    49
  - Stop Switches
    49
- Shifting
  50
- Stopping Boat
  51
- Stopping Engine
  51
  - Procedure
    51
- Trimming Outboard Motor
  52
- Tilting up and down
  55
- Shallow Water
  58
  - Cruising in Shallow Water (Manual Tilt Models)
    58
  - Power Trim and Tilt Models
    59
- Cruising in Other Conditions
  60
Maintenance

61
- Transporting and Storing Outboard Motor
  61
  - Clamp Screw Mounting Models
    61
  - Storing Outboard Motor
    61
  - Procedure
    62
  - Lubrication
    63
  - Flushing Power Unit
    63
  - Cleaning the Outboard Motor
    64
  - Checking Painted Surface of Motor
    64
- Periodic Maintenance
  64
  - Replacement Parts
    64
  - Severe Operating Conditions
    65
  - Maintenance Chart 1
    66
  - Maintenance Chart 2
    68
  - Greasing
    69
  - Cleaning and Adjusting Spark Plug
    70
  - Checking Fuel Filter
    71
  - Inspecting Idling Speed
    71
  - Changing Engine Oil
    72
  - Checking Wiring and Connectors
    73
  - Checking Propeller
    74
  - Removing Propeller
    74
  - Installing Propeller
    75
  - Changing Gear Oil
    76
  - Cleaning Fuel Tank
    77
  - Inspecting and Replacing Anode(S)
    77
  - Checking Battery (for Electric Start Models)
    78
  - Connecting the Battery
    79
  - Disconnecting the Battery
    79
Trouble Recovery

80
- Troubleshooting
  80
- Temporary Action in Emergency
  83
  - Impact Damage
    83
  - Replacing Fuse
    83
  - Power Trim and Tilt will Not Operate
    84
  - Starter will Not Operate
    84
  - Emergency Starting Engine
    85
- Treatment of Submerged Motor
  86

YAMAHA F2.5C Owner's Manual (130 pages)

Outboard Motor F25C; T25C

Brand: YAMAHA | Category: Outboard Motor | Size: 2.74 MB

Table of Contents

4
- General Information
  5
- Chapter 1 IDENTIFICATION NUMBERS RECORD
  6
- Key Number
  6
- Outboard Motor Serial Number
  6
- Emission Control Information
  7
- Safety Information
  9
- Important Labels
  11
  - Warning Labels
    11
  - Caution Labels
    11
- Basic Boating Rules
  12
  - Rules of the Road
    12
- Fueling Instructions
  16
  - Gasoline (Petrol)
    17
- Engine Oil
  18
- Battery Requirement
  19
- Propeller Selection
  20
- Start-In-Gear Protection
  21
Chapter 2 1 2

23
- Basic Components
  23
- Main Components
  24
- Operations of Controls and Other Functions
  25
  - Fuel Tank
    25
  - Gear Shift Lever
    26
  - Recoil Starter Handle
    26
  - Starter Button
    26
  - Tiller Handle
    26
  - Remote Control
    29
  - Steering Friction Adjusting Lever
    33
  - Trim Tab
    34
  - Trim Angle Adjusting Rod
    36
  - Power Trim/Tilt Switch
    36
  - Warning Indicator(S)
    37
  - Digital Tachomoter
    37
  - Tilt Lock Mechanism
    40
  - Tilt Support Knob
    40
  - Tilt Support Bar
    40
  - Top Cowling Lock Lever
    40
  - Flushing Device
    41
- Warning System
  42
  - Overheat Warning
    42
  - Low Oil Pressure Warning
    43
Chapter 3 1 2

45
- Operation
  45
- Mounting the Outboard Motor
  47
  - Clamping the Outboard Motor
    49
- Breaking in (Running In) Engine
  50
- Pre-Operation Checks
  51
  - Checking the Engine Oil Level
    52
- Filling Fuel
  53
- Starting Engine
  54
- Warming up Engine
  59
- Shifting
  60
  - Forward
    60
  - Reverse
    61
- Stopping Engine
  62
- Trimming Outboard Motor
  63
- Adjusting Trim Angle
  64
- Tilting Up/Down
  67
- Cruising in Shallow Water
  70
- Cruising in Other Conditions
  72
  - Cruising in Salt Water
    72
  - Cruising in Turbid Water
    72
Chapter 4 1 2

73
- Maintenance
  73
- Specifications
  74
- Transporting and Storing Outboard Motor
  77
  - Trailering Outboard Motor
    77
  - Storing Outboard Motor
    77
- Periodic Maintenance
  83
  - Replacement Parts
    83
  - Maintenance Chart
    84
  - Greasing
    85
  - Cleaning and Adjusting Spark Plug
    87
  - Checking Top Cowling
    88
  - Checking Fuel System
    89
  - Inspecting Fuel Filter
    90
  - Inspecting Idling Speed
    91
  - Changing Engine Oil
    92
  - Replacing Fuse
    94
  - Checking Wiring and Connectors
    95
  - Exhaust Leakage
    95
  - Water Leakage
    95
  - Checking Power Trim and Tilt System
    96
  - Checking Propeller
    97
  - Changing Gear Oil
    99
  - Cleaning Fuel Tank
    101
  - Inspecting and Replacing Anode(S)
    102
  - Checking Battery
    103
  - Checking Bolts and Nuts
    105
  - Cleaning Cooling-Water Passages
    106
  - Motor Exterior
    107
  - Coating the Boat Bottom
    107
Chapter 5 1 2

109
- Trouble Recovery
  109
- Troubleshooting
  110
- Temporary Action in Emergency
  114
  - Impact Damage
    114
  - Power Trim/Tilt will Not Operate
    114
  - Starter will Not Operate
    115
  - Treatment of Submerged Motor
    118
- Index
  119
  - Propeller Selection
    121

YAMAHA F2.5C Owner's Manual (95 pages)

Outboard motor F2.5C

Brand: YAMAHA | Category: Outboard Motor | Size: 7.73 MB

Table of Contents

4
- General Information
  5
- Chapter 1 IDENTIFICATION NUMBERS RECORD
  6
- Outboard Motor Serial Number
  6
- Emission Control Information
  7
  - North American Models
    7
  - Star Labels
    8
- Safety Information
  9
- Important Labels
  11
  - Warning Labels
    11
  - Caution Labels
    12
- BASIC BOATING RULES (Rules of the Road)
  13
- Fueling Instructions
  17
- Gasoline
  17
  - Gasoline
    18
- Engine Oil
  19
- Propeller Selection
  20
Chapter 2 Basic Components 2

23
- Basic Components
  23
- Main Components
  24
- Operations of Controls and Other Functions
  25
  - Fuel Tank
    25
  - Fuel Cock
    26
  - Gear Shift Lever (for Tiller Control Model)
    26
  - Choke Knob
    27
  - Recoil Starter Handle (if Equipped)
    27
  - Tiller Handle (for Tiller Control Model)
    27
  - Steering Friction Adjusting Screw (for Tiller Control Model)
    30
  - Trim Angle Adjusting Rod
    30
  - Tilt Support Lever
    30
  - Top Cowling Lock Lever
    31
  - Carrying Handle
    31
Chapter 3 Operation

33
- Operation
  33
- Mounting the Outboard Motor
  35
  - Clamping the Outboard Motor
    37
- Pre-Operation Checks
  38
  - Checking the Engine Oil Level
    39
- Filling Fuel
  40
- Breaking in (Running In) Engine
  41
- Starting Engine
  42
  - Procedure for Tiller Control Model
    43
- Checking Points after Starting Engine
  45
- Warming up Engine
  45
- Shifting
  46
  - Forward
    46
  - Reverse
    46
- Stopping Engine
  47
- Trimming Outboard Motor
  48
  - Adjusting Trim Angle
    49
- Tilting Up/Down
  51
  - Procedure for Tilting up
    52
  - Procedure for Tilting down
    52
- Maintenance
  53
  - Specifications
    54
  - Storing Outboard Motor
    55
  - Trailering Outboard Motor
    55
  - Transporting Outboard When Unmounted
    56
  - Periodic Maintenance
    60
  - Replacement Parts
    60
  - Maintenance Chart
    61
  - Checking Fuel System
    65
  - Inspecting Idling Speed
    66
  - Changing Engine Oil
    67
  - Exhaust Leakage
    69
  - Water Leakage
    69
  - Engine Oil Leakage
    69
  - Checking Propeller
    70
  - Changing Gear Oil
    72
  - Checking Bolts and Nuts
    73
  - Checking Top Cowling
    73
  - Motor Exterior
    74
  - Coating the Boat Bottom
    74
Chapter 5 Trouble Recovery

75
- Trouble Recovery
  75
- Troubleshooting
  76
- Temporary Action in Emergency
  79
  - Impact Damage
    79
  - Starter will Not Operate
    80
  - Treatment of Submerged Motor
    83
- Index
  85

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