Elec - Yamaha F50A Service Manual

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ELEC

Troubleshooting............................................................................................. 8-1
Special service tools .....................................................................................8-2
Checking the electrical components............................................................ 8-4
Measuring the peak voltage ...................................................................... 8-4
Measuring the lower resistance.................................................................8-4
Electrical components................................................................................... 8-5
Starboard and port views...........................................................................8-5
Front view ..................................................................................................8-6
Top view .................................................................................................... 8-7
Tiller handle model (F50/F50A, T50/FT50B) .............................................8-8
Tiller handle model (FT50C)...................................................................... 8-9
Wiring harness ............................................................................................. 8-10
Ignition system and Ignition control system............................................. 8-11
Checking the ignition spark gap ..............................................................8-13
Checking the spark plug caps .................................................................8-14
Checking the ignition coil.........................................................................8-14
Checking the CDI unit.............................................................................. 8-15
Checking the charge coil .........................................................................8-15
Checking the pulser coil ..........................................................................8-16
Checking the pulser coil air gap ..............................................................8-16
Checking the engine start switch............................................................. 8-17
Checking the engine shut-off switch........................................................ 8-17
Checking the thermoswitch ..................................................................... 8-18
Checking the oil pressure switch ............................................................. 8-18
Starting system ............................................................................................ 8-19
Checking the fuse....................................................................................8-20
Checking the wiring harness (10 pins) ....................................................8-20
Checking the neutral switch..................................................................... 8-20
Checking the starter relay........................................................................8-20
Starter motor ................................................................................................8-21
Removing the starter motor pinion .......................................................... 8-23
Checking the starter motor pinion............................................................ 8-23
Checking the armature ............................................................................8-23
Checking the brushes.............................................................................. 8-24
Checking the starter motor operation ......................................................8-24
Charging system .......................................................................................... 8-25
Checking the lighting coil.........................................................................8-26
Checking the Rectifier Regulator............................................................. 8-26
62Y3A11
Electrical systems
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