Yamaha WaveRunner FX SHO Service Manual page 276

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ELEC
Electrical components................................................................................... 7-1
Electrical box.................................................................................................. 7-3
Electrical components ............................................................................... 7-3
Electrical box disassembly ........................................................................ 7-4
Fuse box disassembly ............................................................................... 7-6
Electrical analysis .......................................................................................... 7-9
Check using the YDIS ............................................................................... 7-9
Input voltage measurement ..................................................................... 7-10
Peak voltage measurement..................................................................... 7-10
Ignition system............................................................................................. 7-11
Ignition coil............................................................................................... 7-11
Pickup coil ............................................................................................... 7-14
Charging system .......................................................................................... 7-15
Stator coil................................................................................................. 7-15
Rectifier regulator .................................................................................... 7-17
Control system ............................................................................................. 7-19
Oil pressure switch .................................................................................. 7-19
Thermoswitch .......................................................................................... 7-20
Thermo sensor ........................................................................................ 7-22
Engine temperature sensor ..................................................................... 7-23
Intake air temperature sensor.................................................................. 7-24
Intake air pressure sensor ....................................................................... 7-26
Knock sensor........................................................................................... 7-28
Throttle position sensor ........................................................................... 7-28
Accelerator position sensor ..................................................................... 7-31
Electronic throttle valve relay................................................................... 7-35
Cam position sensor................................................................................ 7-36
Slant detection switch.............................................................................. 7-37
Steering sensor ....................................................................................... 7-38
Reverse sensor ....................................................................................... 7-39
Right handlebar switch assembly ............................................................ 7-40
ECM circuit .............................................................................................. 7-42
Earth plate ............................................................................................... 7-43
Electric bilge pump .................................................................................. 7-43
Fuel system .................................................................................................. 7-44
Fuel injector ............................................................................................. 7-44
Fuel pump module................................................................................... 7-46
Chapter 7
Electrical system
E