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Evinrude Alarm


Ralph Wiggum

Question

Hey guys. My friend has a '92 Evinrude Intruder 175. We were out fishing last night, and it started sounding a long, constant alarm. We'd squeeze the primer bulb, and the alarm would shut off for a little bit, then sound again. We repeated this several times, then gave up running it, although it ran great when it was running. What do you experts think it is? He talked to a mechanic, so we know their opinion, but I thought I'd pose it here just to make sure the mechanic is on the up-and-up.

Thanks.

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Ralph,

I just got mine back from the boat mechanic. I have a 2001 80 hp Yammy four stroke. The high-pitched constant alarm would go off. I'd heard that that long tone is a heating issue. I checked my water flow and it was flowing fairly well. But, apparantly not enough. The impeller wasn't shot, but was close and it was pushing not enough water through to cause the hot sensor to go off. I don't know if it's the same for all outboards, but it is something to consider. I can't explain why pumping the bulb would shut it off, but at least you can start there.

Good Luck!

MJ

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Alarm will go off for 2 reasons:

lack of oil (if VRO oil injetcted)

lack of water

I don't understand what squeeszing bulb has to do with it, unless the oil injection is failing being together with fuel pump.

I guess a faulty alarm box can be 3rd cause too.

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Valv, yes it is VRO injected. We were told that the fuel and oil pump are together, and that the pump probably needed replacing. Just wanted to hear it from someone who didn't stand to make a profit off of it. Thanks!

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Yes Oil pump and fuel pump are together, you cannot replace them separate.

But you can disconnect alarm and run mix instead of using oil injection.

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I just got my 1995 Evinrude 150 out of the shop yesterday. It sounds like that is the same EXACT problem that I had. On that vintage of Evinrude, the constant tone can either mean fuel flowage restriction or over-heating. Both will be constant tones, but the fuel restriction will let the motor run nearly full speed, and the overheating will keep the motor at about half throttle. My problem seemed to go away when I pumped the bulb too, but then it eventually became constant. I thought maybe I was overheating so I left the lake. I checked it after it should have cooled down, but it still sounded. I called the shop and he said that it sounds like my horn itself was bad. I brought it in and that was the problem. $30 something for the horn, plus labor. I had him do a full system check and everything else in great shape.

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I had a Evinrude that did the same thing.

After reading up on the VRO woes I decided it better to mix the gas and disconnect the pump. Surf a bit and you will find the instructions. Or leave it hooked up and roll the dice.

The other cause I had for the alarm was when ever I fished a certain lake the horn would go off shortly after launching. Reason being I had to go through 100 yards of thick weeds to reach weedless water. I am sure the weeds were restricting the water intake becuase it only happened on that weedy lake.

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