Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 145Get this manual
7Remove adjusting screw (a) and washer (b) from friction block (c) Then slide block off shaft (d) 2Instal hrottle shaft (d) into hand le (c) and secure with screw (a) and plate (b)
3Insta ll nylon bushing (b) and rubber spacer (a) ove throttle shaft