Morse gear shift

[J.D. Kloss]

Does anybody have a diagram for the Morse single lever remote control used with the yanmar engine in 1982 -- or even which model it is?

The neutral button / pull out is sticking badly. Blindly spraying McLube at it isn't helping. I'd like some guidance before trying to take it apart for lubrication. It's not a cable problem; throttle and gear shift works OK; it's the lockout that allows throttle advance in neutral that is sticking.

Any suggestion helps.

Jim Kloss
s/v Ambivalence
S2 7.9 #8