74 50HP Electric start Thunderbolt Tach problem

rsp95

Seaman
Joined
Sep 3, 2008
Messages
53
Purchased an Aqua Meter tach (model 636) which was suppose to be for a Thunderbolt motor. It did not have any pulse adjustments so all I could do is connect the Brown and Black wires to the remote control. Not an expert so excuse any incorrect terms. Once I tried to start the motor the tach needle showed full rpm and would not start. I unplugged the harness and the motor started right up. It's obvious that I am missing something or that the tach just will not work for my outboard. Anyone have any ideas? Is there something I need in between the wiring harness and remote control?
 

rsp95

Seaman
Joined
Sep 3, 2008
Messages
53
Re: 74 50HP Electric start Thunderbolt Tach problem

Things move fast in this forum. Anyone have any ideas what I need to do to make my tach work? Thanks in advance.
 
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