I have a 74 Johnson 70 h horse on a 75 mfg gypsy. The tilt and trim just stopped working after a season sitting. I had a problem last year when it didn't work and just made a clicking nose but then started working again. When I got it out this year it clicked a few times only when going up not down then just stopped clicking. The tilt on it says Johnson TNT I can't find anything on it. I think if I could find the system I think I could troubleshoot the issues.