1. GENERAL INFORMATION ZING125 POOR CHARGING (BATTERY OVER DISCHARGING OR OVERCHARGING) Undercharging Inspection/Adjustment Symptom Probable Cause Start engine and test limit voltage between battery terminals Normal voltage Voltage does not Dead battery increase Faulty battery Measure resistance between AC generator coil terminals Faulty coil Normal Resistance too high Broken pink and yellow wires Connect battery (+) wire Shorted pink and yellow wires to regulator/rectifier coupler red wire and battery (-) wire to engine ground and test voltage Normal voltage No voltage Broken red wire Check regulator/rectifier coupler for loose connection Normal Abnormal Faulty regulator/rectifier Poorly connected coupler Faulty A.C. generator Overcharging Inspection/Adjustment Symptom Probable Cause Connect battery (+) wire to regulator/rectifier coupler black wire and battery (-) wire to engine ground and test voltage Battery has voltage Battery has no with ignition switch voltage with ignition Broken black wire "ON" switch "ON" Check regulator/rectifier coupler for loose connection Normal Abnormal Poorly connected coupler Faulty regulator/rectifier 1-19