2011 Polaris Ranger RZR ATV Service Manual, Page 372Get this manual
ELECTRICAL NOTE: If there are any significant variations in ohm readings between the three legs it is an indication that one of the stator legs may be weak or failedTEST 2: Resistance Value of Each Stator Leg to Ground 1Measure the resistance value of each of the stator legs to ground: Y1 to Ground, Y2 to Ground, Y3 to GroundEach test should measure: Open Line (OL) Test Battery Charge Coil Connect Meter Leads To: Y1, Y2, or Y3 to Ground Ohms Reading Open Line (Infinity) RegulatorRectifier
RegulatorRectifier
The RegulatorRectifier is located behind the radiator cooling fan and can be accessed through the front left wheel well
NOTE: Any measurement other than Infinity (open) will indicate failed or shorted stator legTEST 3: Measure AC Voltage Output of Each Stator Leg at Charging RPM 123Set the selector dial to measure AC VoltageStart the engine and let it idleWhile holding the engine at specified RPM, separately measure the voltage across each leg' of the stator by connecting the meter leads to the wires leading from the alternator (Y1 to Y2, Y1 to Y3, Y2 to Y3)Refer to the following table for approximate AC Voltage readings according to RPMTest each leg at the specified RPM in the tableExample: The alternator current output reading should be approximately 18 VAC at 1300 RPM between each leg'NOTE: If one or more of the stator leg output AC voltage varies significantly from the specified value, the stator may need to be replacedRPM Reading 1300 3000 5000 AC Voltage (VAC) Reading 18 VAC 25 42 VAC 25 64 VAC 25