Yamaha F4B - Electrical System

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Electrical system 5
Electrical component and wiring harness routing ......... 5-1
Port ........................................................................................... 5-1
Top ............................................................................................ 5-2
Checking the electrical component ................................. 5-3
Measuring the peak voltage ...................................................... 5-3
Using the digital tester ............................................................... 5-3
Charging unit and component ......................................... 5-4
Checking the lighting coil (optional for European market) ......... 5-4
Checking the Rectifier Regulator
(optional for European market) .................................................. 5-4
Ignition unit and component ............................................ 5-5
Checking the ignition spark ....................................................... 5-5
Checking the spark plug cap ..................................................... 5-5
Checking the engine shut-off switch .......................................... 5-6