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Table of contents

Safety information............................. 1

Outboard motor safety .................... 1

Propeller ............................................. 1

Rotating parts..................................... 1

Hot parts............................................. 1

Electric shock ..................................... 1

Engine shut-off cord (lanyard) ............ 1

Gasoline ............................................. 1

Gasoline exposure and spills ............. 1

Carbon monoxide ............................... 1

Modifications ...................................... 2

Boating safety ................................. 2

Alcohol and drugs............................... 2

Personal flotation devices .................. 2

People in the water............................. 2

Passengers ........................................ 2

Overloading ........................................ 2

Avoid collisions................................... 2

Weather.............................................. 3

Passenger training ............................. 3

Boating safety publications................. 3

Laws and regulations ......................... 3

General information .......................... 4

Identification numbers record.......... 4

Outboard motor serial number ........... 4

EC Declaration of Conformity

(DoC)............................................ 4

CE Marking ..................................... 4

C-Tick label ..................................... 4

Read manuals and labels................ 6

Warning labels.................................... 6

Specifications and requirements... 10

Specifications ................................ 10

Installation requirements ............... 11

Boat horsepower rating .................... 11

Mounting motor ................................ 11

Battery requirements..................... 11

Without a rectifier or Rectifier

Regulator ...................................... 11

Propeller selection ........................ 11

Start-in-gear protection ................. 12

Engine oil requirements ................ 12

Fuel requirements ......................... 12

Gasoline ........................................... 12

Muddy or acidic water ................... 13

Anti-fouling paint ........................... 13

Motor disposal requirements......... 13

Emergency equipment .................. 13

Components .................................... 14

Components diagram.................... 14

Fuel tank........................................... 15

Fuel tank........................................... 16

Fuel joint........................................... 16

Fuel gauge ....................................... 16

Fuel tank cap.................................... 16

Air vent screw................................... 16

Fuel cock .......................................... 16

Open................................................. 17

Tiller handle ...................................... 17

Gear shift lever ................................. 17

Throttle grip ...................................... 18

Throttle indicator............................... 18

Throttle friction adjuster .................... 18

Engine shut-off cord (lanyard) and

clip................................................. 19

Engine stop button ........................... 19

Choke knob ...................................... 19

Manual starter handle....................... 19

Steering friction adjuster................... 20

Trim rod (tilt pin) ............................... 20

Tilt support bar ................................. 20

Cowling lock lever(s) (turn type)....... 20

Installation ....................................... 21

Installation..................................... 21

Mounting the outboard motor ........... 21

Clamping the outboard motor........... 22

Operation ......................................... 24

First-time operation....................... 24

Breaking in engine............................ 24

Getting to know your boat ................ 24

Checks before starting engine ...... 24

Fuel level .......................................... 25

U6E028E0.book Page 1 Tuesday, February 10, 2009 3:19 PM

Fuel Induction System	Carburetor
Starting System	Manual
Gear Ratio	2.08:1
Engine Type	2-stroke
Prop Shaft Horsepower / Max. Output / Max Power	4 hp
Full Throttle RPM Range	4, 500 - 5, 500 rpm
Ignition System	CDI
Lubrication System	Premix
Gear Shift	F-N
Shaft Length	S

Yamaha 4AC User Manual

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