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OFFSHORE ANGLING => Boat Tech => Topic started by: dodger on December 16, 2013, 03:45:45 PM

Title: outboard alarm
Post by: dodger on December 16, 2013, 03:45:45 PM

I finally fitted the long sort after ignition switch to the port motor on my Johnson 30's, and we had some fun, the switch is totally different (although generic) in connection layout from the original and indeed some of the connections were numbered differently but we battled away and finally got the unit working properly. So...............
started the starboard motor and from turning the key the alarm sounds :cnfzd The motor runs fine, water pumps out the tell tale on the head and also out of the vents on the back of the motor so it's not a temperature problem I think :cnfzd

apart from temperature alarm what other alarm is there? The motors are 1996 models

Title: Re: outboard alarm
Post by: Chigger on December 16, 2013, 03:55:16 PM

If its an auto lube - low 2 stroke.

Title: Re: outboard alarm
Post by: dugong on December 16, 2013, 04:00:56 PM

Possibly the temp sender/sensor unit faulty :dunno:

Title: Re: outboard alarm
Post by: dodger on December 21, 2013, 02:48:17 PM

It is a puzzle, I disconnected the thermo switch on the cylinder head and the alarm still went off with the engine stone cold.
I reconnected the thermo switch and disconnected the brown (alarm) wire on the buzzer and the alarm still went off, reconnected the brown wire and disconnected the purple wire which is tagged as accessory on the attached wiring diagram and the alarm was silent, so the problem sits in the purple wire.
Any ideas on the implications if I leave the purple / accessory wire disconnected? :cnfzd

Title: Re: outboard alarm
Post by: Cam Mundy on December 21, 2013, 03:27:20 PM

Purple is often used as the live wire on marine systems if its marked as accessory its probably there to run power to something when the the ignition is turned on a fuel gauge for example leave it disconnected it shouldn't be an issue.

Title: Re: outboard alarm
Post by: pieta on December 21, 2013, 06:12:03 PM

You would want the bazzer to go screaming when needed. Just for a test, disconect the thermo switch on the head and short it out on the moter. If the bazzer does not go you have the wires mixed up and in case of overheating you will not be warn. By listening to your last post I think your purple wire is your bazzer wire. If you short it out any where on the moter it should go off.

Title: Re: outboard alarm
Post by: dodger on December 21, 2013, 06:17:48 PM

thanks guys