Here's the deal.
I have a 90 evinrude 150 and the trim guage works, but only on the top 3/4 of the guage. Meaning when i have it in the full up position the guage is pegged to the top of the range. so i start to lower it through the tilt, when the motor goes down quickly, but the guage does not move. When i get the the slo part, assuming its slow because thats the trim part of the tilt/trim, The guages starts to move. So when it is all the way down the gauge reads 3/4. I was under the assumption it would sweep the entire guage and not just move when its in the trim mode.
I know these are resistance based to get the reading. So is it [possible that the wires are corroding causing high resistance in the system and moving the needle out of the guages range?
does anybody have a diagram for this wiring system?
any thoughts?
I have a 90 evinrude 150 and the trim guage works, but only on the top 3/4 of the guage. Meaning when i have it in the full up position the guage is pegged to the top of the range. so i start to lower it through the tilt, when the motor goes down quickly, but the guage does not move. When i get the the slo part, assuming its slow because thats the trim part of the tilt/trim, The guages starts to move. So when it is all the way down the gauge reads 3/4. I was under the assumption it would sweep the entire guage and not just move when its in the trim mode.
I know these are resistance based to get the reading. So is it [possible that the wires are corroding causing high resistance in the system and moving the needle out of the guages range?
does anybody have a diagram for this wiring system?
any thoughts?