Yamaha F50D User Manual

Table of contents

General information .......................... 1

Identification numbers record .......... 1

Outboard motor serial number .......... 1
Key number....................................... 1

Emission control information ........... 1

North American models..................... 1
Star labels ......................................... 2

Safety information ........................... 3
Important labels............................... 4

Warning labels .................................. 4
Caution labels ................................... 4

Basic boating rules (Rules of the

road) .............................................. 5

Steering and sailing rules and sound

signals............................................. 5

Rules when encountering vessels .... 5
Other special situations..................... 6

Fueling instructions ......................... 8

Gasoline ............................................ 9
Engine oil .......................................... 9

Battery requirement......................... 9

Battery specifications ...................... 10

Propeller selection......................... 10
Start-in-gear protection ................. 11

Basic components .......................... 12

Main components .......................... 12

Fuel tank ......................................... 12
Fuel joint ......................................... 13
Fuel gauge ...................................... 13
Fuel tank cap .................................. 13
Air vent screw ................................. 13
Remote control................................ 13
Remote control lever ....................... 13
Neutral interlock trigger ................... 14
Neutral throttle lever........................ 14
Throttle friction adjuster................... 14
Engine stop lanyard switch ............. 15
Main switch ..................................... 15
Power trim and tilt switch on remote

control or tiller handle ................... 16

Power trim and tilt switch on bottom

engine cowling .............................. 16

Trim tab with anode ........................ 16
Tilt support lever for power trim and

tilt or hydro tilt model..................... 17

Top cowling lock lever(s) (turn

type) .............................................. 17

Flushing device ............................... 17
Tachometer ..................................... 17
Digital tachometer ........................... 18
Low oil pressure warning indicator .. 18
Low oil pressure warning indicator .. 18
Overheat warning indicator ............. 19
Overheat warning indicator (digital

type) .............................................. 19

Speedometer (digital type) .............. 19
Trim meter ....................................... 20
Trim meter (digital type) .................. 20
Hour meter (digital type).................. 20
Trip meter ........................................ 21
Clock ............................................... 21
Fuel gauge ...................................... 22
Fuel warning indicator ..................... 22
Low battery voltage warning

indicator ........................................ 22

Warning system ............................ 23

Overheat warning ............................ 23
Low oil pressure warning ................ 23

Operation ......................................... 25

Installation..................................... 25

Mounting the outboard motor .......... 25

Breaking in engine ........................ 26

Procedure for 4-stroke models ........ 26

Preoperation checks ..................... 26

Fuel ................................................. 26
Controls ........................................... 27
Engine ............................................. 27
Checking the engine oil level .......... 27

Filling fuel...................................... 27

Ring Free Fuel Additive................... 28

Operating engine .......................... 28

Feeding fuel (portable tank) ............ 28
Starting engine ................................ 29

Warming up engine....................... 30

Manual start and electric start

models .......................................... 30

Shifting .......................................... 31

Forward (tiller handle and remote

control models) ............................. 31

Reverse (automatic reverse lock