Yamaha F20B Owner's Manual page 5

Engine control system.................... 28
Alert system .................................. 28
Overheat alert ................................. 28
Low oil pressure alert ...................... 28
Installation ....................................... 30
Installation ..................................... 30
Mounting the outboard motor .......... 30
Clamping the outboard motor ......... 32
Operation ......................................... 33
First-time operation ....................... 33
Fill engine oil ................................... 33
Breaking in engine .......................... 33
Getting to know your boat ............... 33
Checks before starting engine ...... 33
Fuel level......................................... 33
Remove cowling.............................. 34
Fuel system..................................... 34
Controls........................................... 34
Engine shut-off cord (lanyard)......... 35
Engine oil ........................................ 35
Engine ............................................. 36
Flushing device ............................... 36
Install cowling.................................. 36
Checking power tilt system ............. 36
Battery............................................. 37
Filling fuel ...................................... 37
Operating engine........................... 38
Sending fuel (portable tank) ............ 38
Starting engine ................................ 39
Checks after starting engine ......... 44
Cooling water .................................. 44
Warming up engine ....................... 44
Manual start and electric start
models .......................................... 44
Checks after engine warm-up ....... 45
Shifting ............................................ 45
Stop switches .................................. 45
Shifting .......................................... 45
Stopping boat ................................ 46
Stopping engine ............................ 47
Procedure ....................................... 47
Trimming outboard motor.............. 48
Adjusting trim angle for manual tilt
models .......................................... 48
Adjusting trim angle (power tilt
Table of contents
models) ......................................... 49
Adjusting boat trim .......................... 49
Tilting up and down....................... 50
Procedure for tilting up (manual tilt
models) ......................................... 51
Procedure for tilting up (power tilt
models) ......................................... 51
Procedure for tilting down (manual
tilt models)..................................... 53
Procedure for tilting down (power
tilt models)..................................... 53
Shallow water................................ 54
Cruising in shallow water (manual
tilt models)..................................... 54
Power tilt models ............................. 55
Cruising in other conditions........... 56
Maintenance .................................... 57
Transporting and storing outboard
motor ........................................... 57
Dismounting the outboard motor ..... 57
Storing outboard motor ................... 58
Procedure........................................ 59
Lubrication....................................... 60
Flushing power unit ......................... 60
Cleaning the outboard motor........... 61
Checking painted surface of
motor............................................. 61
Periodic maintenance ................... 61
Replacement parts .......................... 61
Severe operating conditions............ 62
Maintenance chart 1........................ 63
Maintenance chart 2........................ 65
Greasing.......................................... 66
Cleaning and adjusting spark
plug ............................................... 67
Checking fuel filter........................... 68
Inspecting idling speed.................... 68
Changing engine oil ........................ 69
Checking wiring and connectors ..... 70
Checking propeller .......................... 71
Removing propeller ......................... 71
Installing propeller ........................... 72
Changing gear oil ............................ 72
Cleaning fuel tank ........................... 73
Inspecting and replacing