CONTINUOUSWAVE

There are two diodes on the 2005 Yamaha F90 tilt/trim wiring. They are located in a small black plastic cup which can be found taped to the vertical section of the main harness trunk that runs just inboard of the fuse cups under the cowling. I believe these diodes are transient voltage suppressor di...

Thank you Jimh I really appreciate your thoughts on this as I’ve been struggling to think of what I’m missing. Great thought on the diode. I was wondering about a diode and hadn’t considered the dual motor scenario. I was thinking maybe there is a diode wherever the 3 wires for the helm trim and 3 w...

Thank you for your detailed response Jimh. I do have an owners manual however at least the one I have doesn't have much for wiring schematics. I tried the test you recommended and found the following; 10g blue and green disconnected from the relay with relay de-energized I have continuity from commo...

I just bought and rigged a used 2005 Yamaha F90 with a new Yamaha 704 controller and an OEM Yamaha 10-pole wiring harness. The power trim is not working correctly. The F90 engine will down trim from the trim DOWN switch on the cowling and from the trim DOWN switch at helm. When the trim UP switch is...