2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 347Get this manual

2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 347

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Electrical systems
Replace the lighting coil
Measure the Rectifier Regulator output peak voltage
Out of specification? No Replace the battery, and then check the whole voltage of all