PolishPrince
Seaman
- Joined
- Jun 6, 2009
- Messages
- 68
I have an '07 Merc 90HP 4S. Mercury says it has an analog sending unit and that a gauge and wire are all that's needed to finish the circuit.
Can anyone direct me to the sender unit location on this motor?
I found a thread for an older unit with a diagram, but it does not apply to my 2007. I've found the Brn/Wht wire behind the IP and it's showing resistance to ground as the motor is raised and lowered. Hopefully it won't need any adjusting after I install the gauge.

Can anyone direct me to the sender unit location on this motor?
I found a thread for an older unit with a diagram, but it does not apply to my 2007. I've found the Brn/Wht wire behind the IP and it's showing resistance to ground as the motor is raised and lowered. Hopefully it won't need any adjusting after I install the gauge.