68 Evinrude Electric Start Help

Hello, iv'e been cruising the site for quite some time before i decided to make a account. Im 16 and just bought this 18 horse evinrude, runs like a champ first pull and have never had any problems with it. I have always known it has a electric starter just never felt the need to get it to run until i started to get lazy and just seems cool to have. So my question is do i need a special marine starter switch for it? If someone has a forum or guide that would be great. Thanks!

I used a 15 amp marine horn button for mine. It's only about $6.00.

I'm in the same boat as you I was given this website from another member check it out.
https://www.leeroysramblings.com/johnson_9.9_electricstarthtm.htm