NEW GUY Volvo penta Ignition switch replacement help

[RAK14]

I'm trying to replace this ignition switch and not sure what I need.. Here are a couple pic's There is a yellow wire under the heavy red wire. That connects to the S terminal. This is a 1993 Volvo Penta 230B the boat is a Glasstrem. You turn the to the right and it starts and then the key returns a little bit.. Any help would be great Thank you.

 

[bruceb58]

http://www.iboats.com/Boat-Ignition...2063166--session_id.589675959--view_id.216622

 

[tpenfield]

Ignition switches are fairly generic and not necessarily specific to the boat or engine. So, iBoats should have a decent match to what you have.