I purchased a 1993 Dynasty Elanti 171 with the Yamaha 3.0 L4 stern drive engine. Boat has been awesome up until a week ago. Boat died on us out in the river. After being towed back and neighbor look over the boat, he determined the kill switch was bad. You can’t buy an OEM ignition switch with kill switch anymore. So I purchased a 2 wire aftermarket kill switch. Problem is the boat still won’t start. It’s got fire, fuel and air but will not start. Where can I find an accurate wiring diagram for this boat (it’s all original)? Or where can I ground too? The black/yellow wire is my kill switch , correct? Thanks for any help or advice. New to owning a boat and know absolutely nothing about them