1998+ Mercury Mariner 25HP Bigfoot Service Manual, Page 107Get this manual
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CHARGINGSTARTING SYSTEM
STATOR (BATTERY CHARGE COIL)
a AmpStator METER TEST LEADS RED BLACK RX1 15 AmpStator METER TEST LEADS RED BLACK RX1 0.22 0.24 2224 METER SCALE READING (W) 0.