Elec - Yamaha FT50C Service Manual

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ELEC

Special service tools .....................................................................................8-1
Checking the electrical components............................................................ 8-2
Measuring the peak voltage ...................................................................... 8-2
Measuring the lower resistance.................................................................8-2
Electrical components................................................................................... 8-3
Starboard and port views...........................................................................8-3
Front view ..................................................................................................8-4
Top view .................................................................................................... 8-5
Tiller handle model .................................................................................... 8-6
Wiring harness ............................................................................................... 8-7
Ignition system and Ignition control system............................................... 8-8
Checking the ignition spark gap ..............................................................8-10
Checking the spark plug caps .................................................................8-10
Checking the ignition coil.........................................................................8-11
Checking the CDI unit.............................................................................. 8-11
Checking the charge coil .........................................................................8-11
Checking the pulser coil ..........................................................................8-12
Checking the pulser coil air gap ..............................................................8-13
Checking the engine start switch............................................................. 8-13
Checking the engine shut-off switch........................................................ 8-13
Checking the thermoswitch ..................................................................... 8-14
Checking the oil pressure switch ............................................................. 8-14
Starting system ............................................................................................ 8-15
Checking the fuse....................................................................................8-16
Checking the wiring harness (10 pins) ....................................................8-16
Checking the neutral switch..................................................................... 8-16
Checking the starter relay........................................................................8-16
Starter motor ................................................................................................8-17
Removing the starter motor pinion .......................................................... 8-19
Checking the starter motor pinion............................................................ 8-19
Checking the armature ............................................................................8-19
Checking the brushes.............................................................................. 8-20
Checking the starter motor operation ......................................................8-20
Charging system .......................................................................................... 8-21
Checking the lighting coil.........................................................................8-22
Checking the Rectifier Regulator............................................................. 8-23
62Y5A11
Electrical systems
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