Electrical Systems - Yamaha 25J Service Manual

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ELEC
ELECTRICAL COMPONENTS......................................................................... 8-1
(25JMH, 25JMHO, 30DMH, 30DMHO) ................................................... 8-1
(25JEHO, 30DWH, 30DEHO).................................................................... 8-2
(25JEO, 30DMO, 30DE, 30DEO) .............................................................. 8-3
(25JETO, 30DET, 30DETO) ...................................................................... 8-4
WIRE HARNESS.............................................................................................. 8-5
(25JEO, 30DMO, 30DE, 30DEO) .............................................................. 8-5
(25JETO, 30DET, 30DETO) ...................................................................... 8-6
FLYWHEEL MAGNETO .................................................................................. 8-7
REMOVAL................................................................................................. 8-7
INSTALLATION ........................................................................................ 8-9
ELECTRICAL ANALYSIS............................................................................... 8-10
INSPECTION........................................................................................... 8-10
Digital circuit tester ......................................................................... 8-10
Peak voltage measurement ............................................................ 8-10
Peak voltage adaptor ...................................................................... 8-10
Test harness (for pulser and charge coils) .................................... 8-11
IGNITION SYSTEM....................................................................................... 8-12
IGNITION SPARK GAP........................................................................... 8-13
IGNITION SYSTEM PEAK VOLTAGE.................................................... 8-14
SPARK PLUG.......................................................................................... 8-15
SPARK PLUG CAP.................................................................................. 8-15
ENGINE STOP SWITCH
(25JMH, 25JMHO, 25JEHO, 30DMH,
30DMHO, 30DWH, 30DEHO) ................................................................ 8-15
IGNITION CONTROL SYSTEM .................................................................... 8-16
PULSER COIL ......................................................................................... 8-17
THERMO SWITCH.................................................................................. 8-17
OIL LEVEL GAUGE................................................................................. 8-17
OIL LEVEL/ENGINE TEMP. WARNING LAMP ...................................... 8-18
CHAPTER 8

ELECTRICAL SYSTEMS

E

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