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Yamaha F400A 2022 - Electrical System

Yamaha F400A 2022
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Electrical system
Charging unit and component ........................................ 5-34
Checking the lighting coil (stator assembly)............................. 5-34
Checking the rectifier/regulator................................................ 5-34
Ignition unit and component ........................................... 5-35
Checking the ignition spark...................................................... 5-35
Checking the ignition coil......................................................... 5-35
Checking the crankshaft position sensor................................. 5-35
Checking the intake air pressure/temperature sensor ............. 5-36
Checking the engine temperature sensor ................................ 5-37
Checking the thermo sensor.................................................... 5-38
Checking the knock sensor...................................................... 5-39
Checking the engine shut-off switch (6X6) .............................. 5-39
Checking the engine shut-off switch (EKS).............................. 5-39
Starting unit and component .......................................... 5-41
Checking the starter relay ........................................................ 5-41
Checking the engine start switch and main switch (6X6)......... 5-41
Checking the engine start/stop button (6X6) ........................... 5-41
Checking the power switch (EKS)............................................ 5-42
Checking the start/stop button (EKS) ...................................... 5-43
Checking Y-COP...................................................................... 5-44
Starter motor .................................................................... 5-45
Removing the starter motor ..................................................... 5-46
Checking the starter motor pinion............................................ 5-46
Disassembling the starter motor .............................................. 5-46
Checking the armature (starter motor) ..................................... 5-47
Checking the brush holder....................................................... 5-47
Assembling the starter motor................................................... 5-48
Installing the starter motor ....................................................... 5-49
Outboard motor and Digital Electronic Control
connection ........................................................................ 5-50
Checking the extension wire harness ...................................... 5-50
Checking the main harness...................................................... 5-50
Steering unit ..................................................................... 5-52
Checking the steering actuator ................................................ 5-52

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