1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 39Get this manual

1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 39

Tachometer Terminal Block (Design 1) DESCRIPTION

Contains diode which blocks high voltage AC pulses (180 VAC) coming from the stator and allows low voltage DC pulses (20-30 VDC) to pass through to be counted by the tachometerThis terminal block (with diode) is only used with large, finned type regulatorsThis block is BLACK in color

TACH ALT YEL

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