Tach 'drive' data? 50hp, four cyliner, two stroke, ~1984.

halmc

halmc

Petty Officer 1st Class
Joined
Feb 27, 2008
Messages
231
I'm assuming that the tach senses engine rpm via the gray wire that is connected to the rectifier cuz it's the only electronic link that could carry that sort of data I see in the schematic, and cuz it's sent via the remote control wire harness to the control head.

If not the gray wire than how do the tach get its data?

Thanks in advance.
 
M

Maxz695

Guest
Re: Tach 'drive' data? 50hp, four cyliner, two stroke, ~1984.

The grey wire is the tach wire. The pulses from the stator rotations per minute are sent to the rectifire then transfered via the grey wire to the tachometer.
 
halmc

halmc

Petty Officer 1st Class
Joined
Feb 27, 2008
Messages
231
Re: Tach 'drive' data? 50hp, four cyliner, two stroke, ~1984.

Thanks! My rectifier shows a short to ground, rather than a healthy front/back ratio, so perhaps that both why I show no charge and no tach action. New rectifier orderd.
 
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