Re: evinrude tilt/trim
Welcome to iboats Levi!
What you will have to do is disconnect the tilt ram, take a couple bolts out that hold the unit between the transom brackets and roll the unit out to get to the motor. A servie manual, OEM, would explain how to do this.
Well, I just tried to get on the BRP parts catalog page but it's outta' service for now. I was going to post you the addy so you could at least see the parts breakdown.
Essentially, there are three bolts on each side holding the TNT unit in place. Remove the top two and losen the bottom two, take the tilt cylinder ram pin out and the unit should fall forward enough so you can get to that elusive third screw. Not really a bad job....but you will have to support the engine so you can take the ram pin out. I check the BRP site again and post the link when I can.