Yamaha F100B - Page 2

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EMU25051

Read this owner’s manual carefully before operating or working on your

outboard motor. Keep this manual onboard in a waterproof bag when

boating. This manual should stay with the outboard motor if it is sold.

Main Page

Table of Contents4
General Information6
Identification Numbers Record6
Outboard Motor Serial Number6
Key Number6
EC Label6
Read Manuals and Labels8
Warning Labels8
Safety Information11
Rotating Parts11
Hot Parts11
Electric Shock11
Power Trim and Tilt11
Engine Shut-Off Cord11
Gasoline11
Gasoline Exposure and Spills11
Carbon Monoxide12
Modifications12
Boating Safety12
Alcohol and Drugs12
Personal Flotation Devices12
People in the Water12
Passengers12
Overloading12
Avoid Collisions12
Weather13
Passenger Training13
Boating Safety Publications13
Laws and Regulations13
Basic Requirements14
Fueling Instructions14
Gasoline14
Engine Oil14
Installation Requirements15
Boat Horsepower Rating15
Mounting Motor15
Remote Control Requirements15
Battery Requirement15
Propeller Selection16
Start-In-Gear Protection17
Basic Components18
Main Components18
Remote Control18
Remote Control Lever19
Neutral Interlock Trigger19
Neutral Throttle Lever19
Tiller Handle20
Gear Shift Lever20
Throttle Grip20
Throttle Indicator20
Throttle Friction Adjuster21
Engine Shut-Off Switch21
Engine Stop Button22
Main Switch22
Steering Friction Adjuster22
Power Trim and Tilt Switch on Remote Control or Tiller Handle23
Power Trim and Tilt Switch on Bottom Engine Cowling23
Trim Tab with Anode24
Tilt Support Lever for Power Trim and Tilt Model24
Top Cowling Lock Lever (Pull up Type)25
Flushing Device25
Warning Indicator25
Digital Tachometer26
Low Oil Pressure-Warning Indicator26
Overheat-Warning Indicator (Digital Type)26
Speedometer (Digital Type)27
Trim Meter (Digital Type)27
Hour Meter28
Hour Meter (Digital Type)28
Trip Meter28
Clock29
Fuel Gauge29
Fuel Warning Indicator29
Low Battery Voltage-Warning Indicator30
Warning System30
Overheat Warning30
Low Oil Pressure Warning31
Operation32
Installation32
Mounting the Outboard Motor32
Breaking in Engine33
Procedure for 4-Stroke Models33
Pre-Operation Checks34
Fuel34
Controls34
Stop Switches34
Engine34
Checking the Engine Oil Level34
Filling Fuel35
Operating Engine35
Feeding Fuel35
Starting Engine35
Warming up Engine38
Manual Start and Electric Start Models38
Shifting39
Stopping Boat40
Stopping Engine40
Procedure40
Trimming Outboard Motor41
Adjusting Trim Angle (Power Trim and Tilt)41
Adjusting Boat Trim42
Tilting up and down43
Procedure for Tilting up (Power Trim and Tilt Models)44
Procedure for Tilting down (Power Trim and Tilt Models)45
Cruising in Shallow Water46
Power Trim and Tilt Models46
Cruising in Other Conditions47
Maintenance48
Specifications48
Transporting and Storing Outboard Motor49
Storing Outboard Motor49
Procedure50
Lubrication51
Battery Care51
Flushing Power Unit52
Cleaning the Outboard Motor53
Checking Painted Surface of Motor53
Periodic Maintenance53
Replacement Parts53
Severe Operating Conditions53
Maintenance Chart 155
Maintenance Chart 257
Greasing58
Cleaning and Adjusting Spark Plug58
Checking Fuel System59
Inspecting Fuel Filter60
Cleaning Fuel Filter60
Inspecting Idling Speed61
Changing Engine Oil61
Checking Wiring and Connectors63
Exhaust Leakage63
Water Leakage63
Engine Oil Leakage63
Checking Power Trim and Tilt System63
Checking Propeller64
Removing Propeller65
Installing Propeller66
Changing Gear Oil66
Inspecting and Replacing Anode(S)67
Checking Battery (for Electric Start Models)68
Connecting the Battery68
Disconnecting the Battery69
Checking Top Cowling69
Coating the Boat Bottom69
Trouble Recovery71
Troubleshooting71
Temporary Action in Emergency74
Impact Damage74
Replacing Fuse74
Power Trim and Tilt will Not Operate75
Starter will Not Operate75
Emergency Starting Engine76
Engine Fails to Operate77
Ignition System Malfunction77
Treatment of Submerged Motor78
Procedure78

Yamaha F100B - Page 2

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