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Anyone have any ideas what this is? When the key is turned on or the boat is running there is a loud noise coming from the ignition box where the key is. Any ideas how I can fix it? It just started doing this today when I was doing a quick startup. Thanks.
 

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Discussion Starter · #3 ·
The buzzing is coming from the box where the key is mounted (solenoid?). I was thinking it was an alarm about engine temp maybe, but the water coming out of the engine is cold. It is an Evinrude 90hp VRO V4. After I shut off for about 10min I turned the key on again and it stopped, but after idling again for about 8min it started again. Thanks for your help.:?

This post edited by CRASHLANN 05/29/2008
 

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I had the same thing happen to me. It ended up being my engine overheating. I pulled my impeller off and it was toast. Installed impeller and noise went away. Johnson and Evenrude engines had these features built in. Hope this helps.
 

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TAURUS said:
sounds like the oil injection alarm...i'd by-pass the oil injection and go with pre-mix fuel.

I used to think premix was safer but older now I feel
If it works good, Why fix it ? My 1996 150 Johnson
oil injection works great :tu:
Had a 1971 Yamaha 90 Enduro 30 years ago that the oil injection worked fine for ever. Pre Mix on the chain saw, 2 hp Johnson.

I say 'If it works don't fix it'

If a Oil Injection system is working good is it a good idea to disconnect it and go with premix :?

Try this website

http://forums.iboats.com/showthread.php?t=100229

This guy had a simular problem;

Buzzer Question - 1982 90 HP Evinrude
iboats Boating Forums > Repair and Maintenance > Johnson & Evinrude Outboards


#1 April 13th, 2005, 02:56 PM
bo32792
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Buzzer Question - 1982 90 HP Evinrude
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I am a little confused about a buzzer sound that is coming from the throttle control/ ignition box. The sound is not very loud..it can be heard while the engine is at idle and close to the throttle controls. Moving the key around in the ignition changes the tone (sometimes) and/or it has gone off, or done nothing. The motor is a 90 HP Evinrude 1982. The thermostats were just replaced. The water pump has not be serviced.Water is coming out from the discharge line. I was told the overheat alarms were on the engine itself. Im not sure if this is an overheating alarm or somthing else. Thanks for any help you can provide.


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#2 April 13th, 2005, 03:02 PM
rodbolt
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Re: Buzzer Question - 1982 90 HP Evinrude

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sounds like a poor ground or a bad connection in the control box. or the horn is going bad. has the box been updated to the self test horn or is it the original horn ?


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#3 April 13th, 2005, 03:29 PM
bo32792
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Re: Buzzer Question - 1982 90 HP Evinrude

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I haven't done any thing to the control box area. So Im not sure what the previous owner has done to it


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#4 April 13th, 2005, 03:42 PM
DJ
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Re: Buzzer Question - 1982 90 HP Evinrude

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That IS the overheat alarm you are hearing.Just because you have water flow doesn't mean it's not overheating.Better check it out.


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#5 April 13th, 2005, 03:54 PM
kesso
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Re: Buzzer Question - 1982 90 HP Evinrude

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Has the Temperature Sensor Switch wire comming from the engine been accidentally grounded?If the ground terminal of the buzzer is touching the control box chassis, that would also make a circuit and activate the over-temp alarm.Generally, these buzzers are supplied with 12VDC 'switched' (switched=when 'key' is set to 'on') from the key/ignition switch and the ground wire goes to the engine to a temp sensor which is in the 'normally open' state for normal engine temp; and when the engine overheates the switch closes and makes contact to the engine/ground to complete the circuit and activate the alarm.


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#6 April 13th, 2005, 03:57 PM
DJ
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Re: Buzzer Question - 1982 90 HP Evinrude

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Kesso is correct.The temp sensors are in the tops of each head and have a tan wire coming out of them.


DR
 

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TAURUS said:
sounds like the oil injection alarm...i'd by-pass the oil injection and go with pre-mix fuel.
I was told that you cannot do that to an injected carbed motor, at least not in my case, 1995 225 yammie. I'd do it in a heatbeat if I could. Hate relying on anything I don't have to. Simpler the better IMO. Edit: As for the alarm, when ours went off, I checked the head temps by hand (be careful they can get hot). If they are too hot to hold your hand on them something is wrong. You could have an obtruction or a failing (warped) impeller housing or a bad impeller. Just because water is exiting doesn't mean it is working properly.

This post edited by sea scum 08/08/2008
 
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