Evinrude 40 hp alarm

[RNDavid]

Hello fellow boaters. I have need of some help. I have a 40 hp , 2 cycle, Evinrude outboard on my pontoon. I had just put it back on my boat, after storing it on a stand in my shop over the winter , It started up fine and ran well. the water coming out of the pee hole was cool, and it idled fine. after a few minutes, an alarm began to sound in the throttle box. it would sound every two seconds, and as RPM's increased, so would the alarm speed. I shut down the outboard for a few minutes, and restarted. after a few minutes of idling, the alarm started again. I used the mixed gas fresh with 50:1 ratio. I have already replaced the spark plugs with fresh NGK's. I took the boat to the lake for a good run. Everything was fine, until the alarm began beeping again. Half way through my run the alarm stopped briefly, than began again. Please, what is this alarm trying to tell me, and how do I fix it?? Thank you

 

[flyingscott]

You should have put champion plugs in that motor we also need a model #. Do you have VRO and is it connected? An Alarm every 1 or 2 seconds is usually a no oil flow alarm.

 

[oldboat1]

Agree with flyingscott.

As I understand the standard process, VRO is disconnected by plugging the oil line at the unit and unplugging the harness, then run premix from the tank. If the harness is not unplugged, you will probably keep getting a low oil warning. Think the overheat is a steady horn, but good to check temp anyway on the top of the head (if too hot to touch, it's too hot). IR testers are the way to go.

 

[jakedaawg]

Because you say horn changes with rpm I believe you more likely have a bad horn or circuit.

 

[RNDavid]

It is a 1996 40 hp Evinrude. The oil has always been mixed with the gas. There was never an oil drip system. Unless I am misreading what a VRO is. How can I check or fix the buzzer circuit? I will have to get the model number for you off the engine. Does the lower unit have a sensor? One of the lower unit fill screws were a little loose, and it may be low on lower unit fluid. That, and there may be a little water in it. I will change the lower unit fluid. I appreciate all your help

 

[racerone]

There is no sensor in the lower unit.-----Best to make sure of that lower unit as repairs to that can be spendy.--Get the best oil from your dealer for that.

 

[RNDavid]

Okay. But in the mean time, what Can you tell me of that intermittent alarm?

 

[racerone]

Intermittant alarms have to do with low oil in the main tank or no oil flow inside the VRO pump.-------You need to read your manual.----Inspect / check whether VRO is indeed in service or not.-----Check if wires were properly disconnected or not.----Not sure of what you are looking at , then hurry to a shop and pay for service.---Mistakes get expensive

 

[RNDavid]

Yes indeed they are. I don't believe that the outboard has ever had an oil reservoir VRO

 

[flyingscott]

Put up a pic of the fuel pump. And get a copy of the wiring diagram there is some testing for you to do.

 

[RNDavid]

The model number is E40ELERE. I am making attempts to upload pics of outboard

 

[RNDavid]

No Title

This is the closest wiring diagram I can find

 

[jakedaawg]

That motor originally came with a vro. It may have been disconnected by now. If no oil tank or vro are present then your intermittent alarm is most likely a bad alarm horn. If the vro is still being used as a fuel pump it is possible that the harness is still plugged in. That could explain a non constant tone. A constant tone however would indicate a overheat condition.

You do not need to necessarily run to a mechanic, you do need to take a look and investigate and answer some questions so folks can help.

 

[jakedaawg]

I stand corrected on the VRO issue here. It is possible to have a '94 without VRO from factory. Learned something new today, Thought they quit offering that when they quit the tracker series.

 

[RNDavid]

okay. I still need help with the intermittent buzzing alarm. The gas is fresh and mixed properly, the plugs are fresh. Fresh lower unit oil. The engine is peeing well, the water is cool. I may need to spray out the carbs or run a little sea foam. The outboard is running a little rough at low speed. I turn the key, and get the primary whistle. Then after running a minute or two, it alarms

 

[jakedaawg]

Can you hold your hand on the top of the head once alarm starts sounding, yes or no?

 

[RNDavid]

I have not tried. But I did disconnect the over heat sensor, and ran the engine. That was not it.

 

[jakedaawg]

Then I going back to my original statement based on beeping changing with rpm. You have either a bad horn or horn circuit. I suppose it could be getting the feed from the purple hence the rpm changing tone. That all indicates a bad warning horn.