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EMU28931
Greasing
Yamaha marine grease (Water resistant grease)
F50, T50, F60, T60
Maintenance
EMU28952
Cleaning and adjusting spark plug
EWM00560
WARNING
When removing or installing a spark plug, be careful not to damage the insulator. A damaged insulator could allow external sparks, which could lead to explosion or fire.
The spark plug is an important engine component and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not
ZMU05087 attempt to diagnose any problems yourself.
Instead, take the outboard motor to a
Yamaha dealer. You should periodically remove and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. If electrode erosion becomes excessive, or if carbon and other deposits are excessive, you should replace the spark plug with another of the correct type.
Standard spark plug:
DPR6EB-9
Before fitting the spark plug, measure the electrode gap with a wire thickness gauge;
61
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Table of contents
- 7 General information
- 7 Identification numbers record
- 7 Outboard motor serial number
- 7 Key number
- 7 Emission control information
- 7 North American models
- 8 Star labels
- 9 Safety information
- 10 Important labels
- 10 Warning labels
- 11 Caution labels
- 11 (Rules of the road)
- 11 sound signals
- 12 Rules when encountering vessels
- 13 Other special situations
- 14 Fueling instructions
- 15 Gasoline
- 15 Engine oil
- 16 Battery requirement
- 16 Battery specifications
- 16 Propeller selection
- 17 Start-in-gear protection
- 18 Basic components
- 18 Main components
- 19 Fuel tank
- 19 Fuel joint
- 20 Fuel gauge
- 20 Fuel tank cap
- 20 Air vent screw
- 20 Remote control
- 20 Remote control lever
- 20 Neutral interlock trigger
- 20 Neutral throttle lever
- 21 Tiller handle
- 21 Gear shift lever
- 21 Throttle grip
- 21 Throttle indicator
- 22 Throttle friction adjuster
- 22 Engine stop lanyard switch
- 23 Engine stop button
- 23 Main switch
- 24 Steering friction adjuster
- 24 remote control or tiller handle
- 25 bottom engine cowling
- 25 Variable trolling RPM switches
- 26 Trim tab with anode
- 26 and tilt or hydro tilt model
- 27 (turn type)
- 27 Flushing device
- 27 Water separator
- 27 Tachometer
- 28 Digital tachometer
- 28 indicator
- 29 Overheat warning indicator
- 29 (digital type)
- 29 Speedometer (digital type)
- 30 Trim meter
- 30 Trim meter (digital type)
- 30 Hour meter (digital type)
- 31 Trip meter
- 31 Clock
- 32 Fuel gauge
- 32 Fuel warning indicator
- 32 indicator
- 33 meters
- 33 Tachometer unit
- 36 Speed & fuel meter unit
- 37 Speedometer unit
- 38 Fuel management meter
- 39 Warning system
- 39 Overheat warning
- 39 Low oil pressure warning
- 41 Operation
- 41 Installation
- 41 Mounting the outboard motor
- 42 Breaking in engine
- 42 Procedure for 4-stroke models
- 42 Preoperation checks
- 43 Controls
- 43 Engine
- 43 Checking the engine oil level
- 43 Filling fuel
- 44 Ring Free Fuel Additive
- 44 Operating engine
- 44 Feeding fuel (portable tank)
- 45 Starting engine
- 48 Warming up engine
- 48 models
- 48 Shifting
- 48 control models)
- 49 and power trim and tilt models)
- 50 Trolling
- 50 Adjusting trolling speed
- 50 Stopping engine
- 50 Procedure
- 51 Trimming outboard motor
- 51 Adjusting trim angle
- 52 Adjusting boat trim
- 53 Tilting up and down
- 54 power tilt models)
- 56 Cruising in shallow water
- 56 power tilt models
- 57 Cruising in other conditions
- 58 Maintenance
- 58 Specifications
- 59 motor
- 60 Storing outboard motor
- 60 Procedure
- 61 Lubrication
- 61 measures
- 62 Battery care
- 62 Flushing power unit
- 63 Cleaning the outboard motor
- 63 motor
- 64 Periodic maintenance
- 64 Replacement parts
- 65 Maintenance chart
- 66 Maintenance chart (additional)
- 67 Greasing
- 68 Checking fuel system
- 69 Inspecting idling speed
- 69 Changing engine oil
- 71 Checking wiring and connectors
- 71 Exhaust leakage
- 71 Water leakage
- 71 Engine oil leakage
- 71 power tilt system
- 72 Checking propeller
- 73 Removing the propeller
- 73 Installing the Propeller
- 74 Changing gear oil
- 75 Cleaning fuel tank
- 75 anode(s)
- 76 models)
- 77 Connecting the battery
- 78 Disconnecting the battery
- 78 Checking top cowling
- 78 Coating the boat bottom
- 79 Trouble Recovery
- 79 Troubleshooting
- 82 Temporary action in emergency
- 82 Impact damage
- 82 Replacing fuse
- 83 not operate
- 83 blinks while cruising
- 85 Starter will not operate
- 86 Emergency starting engine
- 86 Treatment of submerged motor
- 87 Procedure
- 88 Consumer information
- 88 U.S.A. and Canada
- 90 WARRANTY
- 92 THE USA OR CANADA