mercury quick silver 3000 throttle only button doesnt work

[cdoelling]

mercury quick silver 3000, always shifts into gear.throttle only button doesnt work. It feels like it pushes in but wont allow throttle only

 

[alldodge]

Need to get into it and find the issue or replace. Here is a place to find the parts breakdown

http://www.mercruiserparts.com/remote-controls-and-components-1994

 

[Bt Doctur]

Dont believe a rebuilding kit is available for the button, best option is for a new controller