Outboard trim-tilt relays explained - YouTube Click to view on Bing21:41May 21, 2016This video goes through the theory of trim tilt relays and how they work. We also build a functioning trim tilt control unit to show how one can be made using cheap after-market parts from an autoAuthor: Dangar MarineViews: 158K trim wiring - Yamaha Outboard Parts Forum Jan 11, 2018I assume the wiring harness was for the original engine. I later upgraded to a 2006 50 HP 2 stroke w PTT. I did buy a Trim & Tilt / Oil Level Sender Wire Harness Cable 20ft 6Y5-83653-10-00 so I could connect a yamaha analog tach i had bought (there was no tach or buzzer on boat when I bought it). I connected the tach and it works fine.
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