Originally Posted by frothy top
I found the sensor i pushed it with my finger and the needle on the gauge moved up and down i then trimed the engine right down and the needle stayed at the top of the gauge. but the sensor was only half way could this be somthing to do with it?
The sensor will not give full range over the full swing of the motor. It should be at the highest "up" on the gauge well before the motor is furthest up (because you're trying to measure usable trim range, so all the way up means the motor is still in, or at least nearly in, the water.)
I would guess that the sensor halfway would still result in the motor being too high to run, so I would guess that the sensor is probably just sticking. See if you can lube it up somehow before trying to adjust it.