Yamaha 12V Air Pump "exciter" Questions

Yamaha Exciter jetboat: eng stops when warm, not overheating The starboard engine on a Yamaha Exciter Jet Boat (EXT 1200W) cuts off when it warms up but it is not overheating. There is no spark when ...

I have a Yamaha boat Exciter 1999 with two engine 135 HP. One of them does not turn off when key is turn off I have a 1998 Exciter with the same problem and the engine was replaced last year. Any ...