Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 486Get this manual

CHARGING SYSTEM (F8CW) CHECKING THE RECTIFIER AND RECTIFIERREGULATOR

Measure: Rectifier output peak voltage Rectifierregulator output peak voltage Below specification Replace the rectifier or rectifierregulatorRectifier output peak voltage Red (R)Black (B)

rmin D.C.V

Cranking Opened Closed 2.8

1,500 3,500 Opened Opened 13.3 32.2

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