16. ELECTRICAL EQUIPMENT VITALITY 50 Regulator/Rectifier Nut REGULATOR/RECTIFIER INSPECTION Remove the front cover. ( 13-4) Disconnect the regulator/rectifier wire coupler and remove the nut to remove the regulator/rectifier. Measure the resistances between the terminals. Replace the regulator/rectifier if the readings are not within the specifications in the table below. · Due to the semiconductor in circuit, it Coupler is necessary to use a specified tester for accurate testing. Use of an improper tester in an improper range A (Red) C (Yellow) may give false readings. 2-Stroke Probe Probe(-) A (R) B (W) C (Y) D (G) A (R) B (W) 3-10K C (Y) 33-35K D (G) 33-35K 4-Stroke Probe B (White) D (Green) Probe(-) A (R) B (W) C (Y) D (G) A (R) 3-4M B (W) 6-8M C (Y) 14-15M D (G) 14-15M 16-10