Yamaha F400A 2022 - Page 27

2
Technical feature and description
Model feature ..................................................................... 2-1
General feature........................................................................... 2-1
Model comparison table ............................................................ 2-2
Power unit........................................................................... 2-3
Intake silencer ............................................................................ 2-4
Shift-shock reduction................................................................. 2-4
Sleeveless cylinder..................................................................... 2-5
Heat exhaust fan and heat vent ................................................. 2-5
Direct fuel injection..................................................................... 2-6
Crankshaft.................................................................................. 2-7
Camshaft.................................................................................... 2-8
Cowlings..................................................................................... 2-9
Bracket unit ...................................................................... 2-10
Upper mount ............................................................................ 2-11
SBW (Steer by Wire) system .................................................... 2-12
System diagram ....................................................................... 2-13
Structure................................................................................... 2-15
Operation ................................................................................. 2-16
Outboard motor manual steering method................................ 2-17
PTT unit .................................................................................... 2-18
PTT sensor ............................................................................... 2-19
PTT lead ................................................................................... 2-20
PTT TotalTilt™.......................................................................... 2-20
Lower unit ......................................................................... 2-23
Lower case............................................................................... 2-24
Gear oil changing method........................................................ 2-25
Reverse thrust .......................................................................... 2-27
Propeller (XTO-EC series)......................................................... 2-28
Engine ECM ............................................................................. 2-28
Electrical system .............................................................. 2-29
Charging system (F400A/FL400A/XF400)................................ 2-29
Charging system (F450A/FL450A/XF450)................................ 2-30
Knocking detection .................................................................. 2-33
Overheat detection................................................................... 2-33
Electronic control system ............................................... 2-34
Electrical components.............................................................. 2-36
Fail-safe.................................................................................... 2-38