62Y3A11 8-2612345678IChecking the lighting coil1. Measure the lighting coil output peakvoltage. Replace the stator coil if belowspecification.WARNINGWhen checking the peak voltage do nottouch any of the connections of the digitaltester leads.NOTE:• Use the peak voltage adaptor with the digi-tal circuit tester.• When measuring the peak voltage, set theselector on the digital circuit tester to theDC voltage mode.Checking the Rectifier Regulator1. Measure the Rectifier Regulator outputpeak voltage. If below specification, mea-sure the lighting coil output peak voltage.Replace the Rectifier Regulator if the out-put peak voltage of the lighting coil isabove specification.WARNINGWhen checking the peak voltage do nottouch any of the connections of the digitaltester leads.NOTE:• Use the peak voltage adaptor with the digi-tal circuit tester.• When measuring the peak voltage, set theselector on the digital circuit tester to theDC voltage mode.Digital multimeter: YU-34899-ADigital circuit tester: 90890-03174Peak voltage adaptor:YU-39991 / 90890-03172Test harness (3 pins):YB-06770 / 90890-06770Lighting coil output peak voltage:Green (G) – Green (G)r/min UnloadedCranking 1,500 3,500DC V 11.9 42 127Lighting coil resistance (use as reference):Green (G) – Green (G)1.2–1.8 Ω at 20 °C (68 °F)Digital multimeter: YU-34899-ADigital circuit tester: 90890-03174Peak voltage adaptor:YU-39991 / 90890-03172Test harness (4 pins):YB-06771 / 90890-06771Charging system
