Okay, I've seen a little bit about this issue a couple of places, but I would like to start a better thread about it. I have a 1979 Johnson power head 140 HP. After running at the lake for a little while this alarm horn inside the remote box starts going off.. its weird that it only does it at low speeds when I first restart the boat.. as soon as the key bumps the on position it starts going off.. after I get it started and get going up to speed it goes away.. New water pump on the lower unit.. the tell hole is shooting out a nice cool stream.
I see that one of my temperature units is spliced together, so I pulled the splice apart and the alarm stopped finally. I did this right before loading up and leaving the lake, so I am not 100% sure if it really stopped for good. I put a new ignition before coming to the lake and I checked all the wires closely to make sure something inside the remote box wasn't causing this. It came right back after putting the new ignition on.
I read somewhere that this alarm can also go off if it senses that the trim sending unit is up I guess to warn you not to start your motor while trimmed up out of the lake.. I am not sure if this is true. If you know if this alarm is in any way associated with the trim system please let me know! I put this 140hp motor onto my boat off another and I forgot to get the trim gauge. I don't have my trim sending unit wired up or the trim gauge. Could this be causing the alarm to go off in that way? I guess it is possible there is a thermostat issue causing the side of the motor that I pulled the spliced temperature sender off of to over heat and pulling that splice is why it stopped buzzing. I am going to go ahead and change the thermostats next just to be safe since this engine wasn't tagged since 2011 when I got it. The thing runs amazing though and never skips a beat even with this stupid false alarm going off. Any advice would be much appreciated thanks.
I see that one of my temperature units is spliced together, so I pulled the splice apart and the alarm stopped finally. I did this right before loading up and leaving the lake, so I am not 100% sure if it really stopped for good. I put a new ignition before coming to the lake and I checked all the wires closely to make sure something inside the remote box wasn't causing this. It came right back after putting the new ignition on.
I read somewhere that this alarm can also go off if it senses that the trim sending unit is up I guess to warn you not to start your motor while trimmed up out of the lake.. I am not sure if this is true. If you know if this alarm is in any way associated with the trim system please let me know! I put this 140hp motor onto my boat off another and I forgot to get the trim gauge. I don't have my trim sending unit wired up or the trim gauge. Could this be causing the alarm to go off in that way? I guess it is possible there is a thermostat issue causing the side of the motor that I pulled the spliced temperature sender off of to over heat and pulling that splice is why it stopped buzzing. I am going to go ahead and change the thermostats next just to be safe since this engine wasn't tagged since 2011 when I got it. The thing runs amazing though and never skips a beat even with this stupid false alarm going off. Any advice would be much appreciated thanks.
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