Warning buzzer staying on
Sorry if this turns a bit lengthy, but I figure information = easier 'diagnosis'...
I recently bought a 2nd hand boat/engine - as described in the 'profile'. Used it last week for a 4 day cruise, and got back home with no problem. Later that evening I noticed the warning buzzer in the throttle housing staying on. This is despite the key being out of the ignition. If I disconnect the battery it goes off, then if I reconnect the battery straight away it starts again immediately. However, if I leave the battery off for a while, then reconnect, it seems to take some time to start sounding again. Don't know how long exactly. Trying to time it right now, and it's an hour passed with no buzzer. However last night, I did connect it, expected no problem and when I came out to the shed later in the evening it was sounding. I guess it's some sort of wiring fault - but it can't be as simple as a straightforward short circuit, or it would presumably start sounding as soon as the power was reconnected?? Maybe it's some sort of component that stores a charge -diode?? Sorry - but although I could construct a basic wiring diagram, I get lost when it gets to anything more complex than a fuse/switch/relay.
Any suggestions at all? I don't want to have to take it to the workshop at this stage in the season, and potentially pay labour charges for a lengthy diagnosis exercise.