My 87' Johnson 120 has the 3 wire vro pump. I pick up a brand new 4 wire vro. Does anyone have an idea where the 4th wire attaches to? How about the wiring diagram for any engine that uses the 4 wire vro?<br />Thanks
EE...if you got a new pump, the instructions should tell you how to hook every thing up. The new pumps come with connectors and all to get the installation correct.
