
Posts: 2754
Location: Mauston, Wisconsin | Aaah the infamous "Gremlin". The problem is probbably excessive voltage drop. This can be from an bad battery( does the engine start OK), or a bad/loose connection, or a bad ignition switch.
Most pieces of electronic equipment have a low voltage limit where they will shutdown to protect themselves. If you have voltmeter you can verify this by monitoring the voltage at the depthfinder while starting the motor. I'd probably disassemble and clean all the battery terminal connections first - then check for loose connections at the ignition switch, etc..
Good luck!
Al |