16. BATTERY/CHARGING SYSTEM/ A.C. GENERATOR ATV 300/250 Regulator/Rectifier Couplers REGULATOR/RECTIFIER INSPECTION Remove the front fender. (Refer to chapter 2) Remove the regulator/rectifier wire coupler. Check the continuity between the wire terminals. Lock Nut Regulator/Rectifier Normal Direction: Continuity Normal Red/White (+) Probe (-) Probe Direction I Yellow Green II Red/White Yellow Yellow Reverse Direction: No Continuity (+) Probe (-) Probe Reverse I Green Yellow Green Direction II Yellow Red/White Black VOLTAGE REGULATION TEST Connect a voltmeter across the battery terminals. Start the engine and gradually increase the engine speed. The battery terminal voltage should be within 1415 V. 16-7