1995 Mariner Mercury Outboards Service Manual 50HP 4-Stroke, Page 44Get this manual
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RectifierRegulator Diode Test
BIK GRN (1) GRN (2) GRNWHT RED
0.3 to 0.8 0.3 to 0.8 0.3 to 0.8 0.8 to 1.3
0.3 to 0.8 0.3 to 0.8
Measured value is not affect