Another tach question...or maybe volt meter...1972 1150

bunker108

Chief Petty Officer
Joined
Jun 26, 2011
Messages
482
Hello all,
I am trying to get the tach working before I put this thing on the water. There are 3 wires coming out of the control box to the tach. Two wires go into the tach through a rubber grommet and one wire runs to the volt meter. Is the volt meter where the tach gets 12v+ from? My volt meter isn't working either. Everything looks good on the engine side. I tried to switch the brown to the yellow wire and the tach gets pinned at 7K rpm.

So is my problem that I don't have power to the volt meter?
 
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