Yamaha 40V - Chapter 8: Electrical System

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CHAPTER 8
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS ......................................................................... 8-1
OIL INJECTION MODEL........................................................................... 8-1
MH, MHO, MO, MDO MODEL................................................................. 8-2
WHD, WH, E, EDO, EO MODEL............................................................... 8-3
ET, ETO MODEL ....................................................................................... 8-4
EHTO MODEL........................................................................................... 8-5
ELECTRICAL UNIT COMPONENTS ............................................................... 8-6
E, EO MODEL ...........................................................................................8-6
ET, ETO MODEL ....................................................................................... 8-7
ELECTRICAL ANALYSIS ................................................................................. 8-8
INSPECTION............................................................................................. 8-8
Peak voltage measurement.............................................................. 8-8
Low resistance measurement .......................................................... 8-8
IGNITION SYSTEM ......................................................................................... 8-9
IGNITION SPARK GAP........................................................................... 8-10
CDI SYSTEM PEAK VOLTAGE .............................................................. 8-10
SPARK PLUG.......................................................................................... 8-12
SPARK PLUG CAP.................................................................................. 8-12
ENGINE STOP SWITCH ......................................................................... 8-13
MAIN SWITCH........................................................................................ 8-14
IGNITION CONTROL SYSTEM .................................................................... 8-15
THERMO SWITCH.................................................................................. 8-16
OIL LEVEL SENSOR...............................................................................8-16
WARNING LAMP ...................................................................................8-17
OIL LEVEL WARNING LAMP................................................................. 8-18
CDI UNIT................................................................................................. 8-18
STARTING SYSTEM ..................................................................................... 8-19
BATTERY ................................................................................................ 8-20
WIRING HARNESS................................................................................. 8-20
WIRING CONNECTION.......................................................................... 8-20
ENGINE STOP SWITCH ......................................................................... 8-20
MAIN SWITCH........................................................................................ 8-20
NEUTRAL SWITCH ................................................................................8-20
STARTER RELAY.................................................................................... 8-21
FUSE ....................................................................................................... 8-21