1998+ Mercury Mariner 25HP Bigfoot Service Manual, Page 107Get this manual
CHARGINGSTARTING SYSTEM
Stator Ohms Test
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) 0.9 1.1 09-11 METER SCALE READING (W)