Alarm

udontno

Cadet
Joined
May 18, 2009
Messages
6
Went out sat.fished a few hours before fireworks no problem.Started to leave to see fireworks & alarm went off.I didnt think motor was hot because
i had just started it.If i would stay @ idle speed it would go off,but come back on at 2500 rpm and above.I did use bulb before i left dock.(97" 200
johnson vennom).Any help would be nice.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Alarm

You don't say what kind of warning you're receiving but I assume it was the steady constant warning horn signal? If so, the starting point would be to drop the lower unit to inspect the water pump assembly.
 

dajohnson53

Lieutenant Commander
Joined
Apr 28, 2004
Messages
1,627
Re: Alarm

Went out sat.fished a few hours before fireworks no problem.Started to leave to see fireworks & alarm went off.I didnt think motor was hot because
i had just started it.If i would stay @ idle speed it would go off,but come back on at 2500 rpm and above.I did use bulb before i left dock.(97" 200
johnson vennom).Any help would be nice.

Sounds like a classic fuel restriction alarm. (see #4 below)
---------------cut and paste ---------------------
There are four conditions that have warning sounds. The following was takein from this website which you should read. http://continuouswave.com/whaler/reference/VRO.html [my comments are in brackets like this]

The warning horn tone sequence tells if a problem is occurring while operating the engine.

1- A rapid on?off sound is a "no oil flow" indication. [On mine it's about one beep every second or so. This means that the tank is either empty or that there is something preventing the oil from flowing from the tank to the fuel pump. The sensor is at the pump. If you've disconnected the oil tank, it could be as simple as you haven't disconnected the wires that cause this warning. My system (intact VRO/OMS) sounds very occasionally if the engine has been sitting for several weeks. A pump or two on the oil primer solves the problem, and it never happens again]

2 - One beep every 20 to 40 seconds is a low oil level in the remote tank. [the sensor for this is in the oil tank. So if you're getting a false reading here, it's because the float sensor is bad or the wiring is grounding somehow]

3 - a steady tone at all speeds is an overheat condition.

4 - On V-6's a constant horn at high speeds that disappears instantly when the throttle is pulled back indicates a fuel restriction.

Loose connections can also cause erroneous "beeps" and the most common open circuits are battery cables with finger tightened wing nuts instead of stainless steel hex nuts and lock washers tightened with a wrench. Incorrect spark plugs occasionally cause false warning signals, too. Use only the "Q" style suppresser plugs recommended by OMC for your motor. Resistor plugs are not the same thing and may be the source of problems. The factory does not endorse spark plug manufacturer's conversion charts.
 
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