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Black wire with ring terminal to ground. Blue wire to Up on gauge green wire to down.
black should be ground or negative. Orange would be the I or ignition, and the Pink would be the S or sending unit
Wired as you suggested, gauge still not working. probably a bad sending unit, do you know what would need to be replaced? thx.You're very welcome.
Methinks the trim and tilt pump motor wiring is getting confused with the trim sender wiring.
The three wire Yamaha sender requires a 5 volt power supply. Normally it comes from a Yamaha tachometer. The orange wire provides the 5 volts. Black is ground. Pink is the sender signal.
Is the trim gauge you have designed for a Yamaha three wire sender? Seems so. What are the wire colours or markings on the post terminals?
Hmmmm. Got me wondering.
The Yamaha three wire sender is a potentiometer. It is designed to have a set voltage applied to it. The output voltage is interpreted by a Yamaha gauge to determine the engine trim angle.
I am wondering if the Sierra gauge for a pre 2001 Yamaha is designed to work solely on the resistance of the potentiometer. That would be my best guess. If so, connect the ground wire from the sender to the ground terminal (G) on the gauge. Connect the pink wire from the sender to the sender terminal (S) on the gauge. The I terminal will be connected to a key on power source. Normally the yellow wire from a key switch. The G terminal on the gauge will also need to be connected to the battery ground. The black wire from a Yamaha key switch.
See if the gauge works correctly. If the gauge now works but is backwards, let us know.
Same make and model of motor?On a similar note, same setup but my gauge only works on the lower portion of trim (3 or 4 inches of travel) and not the full trim
What model motor?1997 Skeeter with Yamaha 175 and faria gauge with ground, ignition and sender posts.
Has this problem always been there or is it new?On a similar note, same setup but my gauge only works on the lower portion of trim (3 or 4 inches of travel) and not the full trim.
The cam appears to be OK. I pulled the sender and the gauge will not start to register until the sender is rotated about 3/4 of the way and full rotation shows full down.Has this problem always been there or is it new?
Is the trim sender cam in good working order? They were originally plastic. Which would break. Has been replaced by a metal cam.
If the cam is working correctly, has the cam been set such that when the motor is in the full down position then the trim gauge should be indicating the full down position.
Assumption being that the Faria gauge is designed for use with a Yamaha three wire sender.
My guess is that someone tried to use the wrong Faria trim gauge. The resistance of the sender (empty to full) is not compatible with the resistance that the Faria gauge is looking for.The cam appears to be OK. I pulled the sender and the gauge will not start to register until the sender is rotated about 3/4 of the way and full rotation shows full down.
My additional question is how are there 3 wires off of the sender and only 1 sender post on the gauge. Has something been changed out?