Evinrude 90 Horse Oil Alarm Test

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Hello, I recently bought a boat with a 1990 Evinrude 90 horse VRO on it. First time I took it out when i turned key on I remember hearing Oil alarm go off...before boat acually started. Last 2 or 3 times out I haven't heard a peep. Isn't it supposed to go off briefly b4 I start boat to tell me that it's working? ANy way I can test it??<br /><br />Thanks!
 

o/b tech

Petty Officer 2nd Class
Joined
Apr 15, 2005
Messages
198
Re: Evinrude 90 Horse Oil Alarm Test

You should hear a single beep when the key is turned to the run position.You also have to determine what created the alarm.A continous horn will be an overheat condition, a horn that sounds a half second on and a half second off, repeatidly, will ba a no oil alarm, and a horn that will sound for a half second every 20 seconds is the low oil. <br /><br />To check and make sure that your horn is working, unplug the tan wire that connects to the temp sensor near the top of the cylinder head. You can jump this wire to ground on the powerhead and it will sound tha alarm at the control box.After testing make sure to reconnect the wire.<br /><br />If you let your oil tank get to about a quarter full, it will sound the low oil horn. Just simply fill the tank back up again and the horn will stop.<br /><br />sometimes the oil supply may develop a small air bubble in it from sitting for a while. This may have triggered the alarm and stopped when the trapped air was purged. It is a good idea to prime the oil primer bulb at the same time you prime the fuel. Generaly it will be hard to squeeze and already primed but this practice prevents the problem from happening in the first place.<br /><br />If you want to confirm that your vro is using oil, place a small mark on the remote tank, recording the level, and check it again later. You can always run pre-mix in the fuel tank if ever in doubt.<br /><br />hope the info is helpful.
 

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Re: Evinrude 90 Horse Oil Alarm Test

Got it! Tnx a bunch for the super helpful resonse!<br /><br />JW
 

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Re: Evinrude 90 Horse Oil Alarm Test

OK, yesterday I put key in ignition and turned it to run and no peep. Turned engine over and no beep. Yellow sticker on dash says there should be a beep when key is turned.<br /><br />I just got this boat...1990 Sea Nymph with Evirude 90 VRO....the very first time Ilaunched it when I turned the key the overheat buzzer went on and stayed on...then when I turned motor over it started and buzzer went off.<br /><br />Second time on water there was no buzzer....but starter was finicky. I thought battery was low so I checked it and one of the wingnuts was loose. Tightened it and charged battery. 3rd time out all was well but still no buzzer at startup.<br /><br />I'm thinking the loose connection fried the buzzer the first time I had the boat out? I'm I on the right track here? Any idea where I can snag a new buzzer? It's in the control box under the throttle lever, right?<br /><br />Tnx a bunch!
 

Brew2

Chief Petty Officer
Joined
Jan 12, 2004
Messages
427
Re: Evinrude 90 Horse Oil Alarm Test

I think the only place you are going to find the new warning horn is at an Evinrude dealer.<br /><br />Did you try grounding the tan wire as suggested by obtech? That will be the definitive test to determine if your horn is "fried".<br /><br />Good luck!
 

kirkland

Petty Officer 2nd Class
Joined
Jun 2, 2003
Messages
195
Re: Evinrude 90 Horse Oil Alarm Test

You had me thinking while reading this post...I have a '91 Rude 70hp with VRO when i turn my key to run i hear nothing...when i checked the buzzer like obtech described it sounds..why wouldn't i get the single buzz when key is first turned??
 

Brew2

Chief Petty Officer
Joined
Jan 12, 2004
Messages
427
Re: Evinrude 90 Horse Oil Alarm Test

The "old style" system didn't self-test when the key was turned on. It only sounded in the event of over-heat, low/no oil.<br /><br />Not sure what year the system changed to include the self-test feature....hopefully someone will come along and fill us in.<br /><br />Cheers.
 

bassman4152

Cadet
Joined
Apr 18, 2005
Messages
20
Re: Evinrude 90 Horse Oil Alarm Test

i have a 90 hp evinrude it starts easy but when in the water a give it gas it bogs down it want even go fast enough to plane out my first boat new bulb new wires and plugs can someone help me thanks shannon
 

kirkland

Petty Officer 2nd Class
Joined
Jun 2, 2003
Messages
195
Re: Evinrude 90 Horse Oil Alarm Test

bassman4152 you might want to put this in a post all it's own....seems like different issue than this post is about...
 

kirkland

Petty Officer 2nd Class
Joined
Jun 2, 2003
Messages
195
Re: Evinrude 90 Horse Oil Alarm Test

brew...thanks for the reply...had me thinking i had a issue..well i have issues but not the particular one were talking about... :)
 

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Re: Evinrude 90 Horse Oil Alarm Test

On my dash there's a yellow sticker that explains what each buzzer tone means. The first one listed says "Short Beep When Key Turned On / Buzzer Test" so it looks like mine is supposed to beep when I turn the key...I'll try ObTech's test tonight and post the result here.<br /><br />Thanks!<br />JW
 

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Re: Evinrude 90 Horse Oil Alarm Test

Update.<br /><br />OK I found the little buzzer under the dash. It was in a net like web. Looks like a moped horn. Plus had 2 purple wires going to it and another color. I checked all the wires going to/from it../fuses/connections on key turntable ...all secure. I unhooked the buzzer and attached it to seperate battery..it went off. I reconnected it under dash after sanding connectors...turn key and nothing (everything else works..fuel guage, battery guage, tape deck, trim, horn,....everything). I then hooked a little metal poker with an alligator clip and wire on it. I poked the tan wire that goes into the cylinder head (see picture here: http://styro.net/motor.jpg) one of these wire was going into each cylinder. It was tan color but coated in black..like heat proofing....is this right wire? The light went on on my tester (alligator clip grounded to clip on cylinder head) but no buzzer. No Buzzer when I do this, no buzzer when I turn key even though dash sticker says there should be a turn key test buzzer. Any ideas here? This boat and motor is a 1990 but all in mint/garage stored condition...no corroded wires or anythig that I can see after poking around with flashlight.<br /><br />Tnx!<br />JW
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Evinrude 90 Horse Oil Alarm Test

Forget using the test light to probe the tan wire. At the power head, disconnect the tan temp sensor wire and ground the wire (not the sensor end, the loose end) to an unpainted are on the engine block. With the key on the horn should sound.
 

joseywales

Cadet
Joined
Apr 17, 2005
Messages
9
Re: Evinrude 90 Horse Oil Alarm Test

OK, so I follow the wire that the arrow is pointing to in this photo: http://styro.net/motor.jpg <br /><br />and disconnect it where it couples with the other wire. And ground the end of the "other wire" to the cylinder head. So it's not really the tan sensor wire I'm grounding to the cylinder head, it's the wire that the tan sensor wire connects to that I'm grounding to the head...right??<br /><br />My manual hasn't arrived yet...just wanna be sure I'm grounding the proper wire. <br /><br />But even if this does work, and the alarm goes off...I'm still up in the air as to why it doesn't sound each time I turn they key like it's supposed to. COuld it be a bad key switch?<br /><br />Tnx, JW
 
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