Quicksilver throttle control contstant beeping in on position

[tkaste]

I have 1997 a 30hp Merc Jet Prop on a 16 ft Bassboat. It has been sitting idle for several years until I picked her up. Gave it a quick tune up - plugs, new oil, fuel filter.... I put the key in and turn to on and a constant beep, beep, beep, beep..... happens. I did not even try to start it yet. Kill switch is on Run. It could not be low oil injection or overheat as I have not even had it running yet. I figure it has been sitting a few years so maybe a sensor is frozen. Try to start, she cranks but does not start. Put key in on position and still a constant beeping. I put gas directly in carb, figuring maybe some old gas left in there, she cranks, fires up and as soon as the gas I put in is gone she dies. Contstant Beeping again with key in on position. Next thought is kill switch is bad so I overide it, still the same beeping noise and will not start.

any idea's? I went to a local marine shop and the response was "30 hp Mercury Jet - that's an odd engine. Probably your oil injection preasure is low". I explain I have not yet tried to start the engine, key is in the on position. Response -" bring it in for $100 we can take a look at it". Does not fill me with a lot of confidence.


My next step was to replace the actual kill switch but before I do I wanted to find out if anyone has any other idea's.

Thanks
TK

 

[tkaste]

May have found the problem. If I disconnect either of the 2 blue(?) wires leading from then oil reservoir and turn the key get 1 beep. But of course no start. I am assuming the oil injection relay is bad.

 

[Texasmark]

Never had that engine in front of me but these answers will probably work.

1. Your kill switch will not cause beeping.

2. The intermittent beep is oil reservoir low oil level fail, as you saw when you disconnected the blue/white stripe wires. The level is low or the sensor is defective. Most remarks on here concerning a problem is the magnet inside the tank falls from where it is supposed to be causing a false level alarm. Somebody on here can tell you how to fish it out/fix it. Meanwhile, leave the wires disconnected and just pay attention to your oil level and don't let it go dry.

The beep when initially going to the ignition ON position is a system check to ensure that the alarm system is capable of functioning.

3. Sounds like you have something like varnish in your carbs requiring removal, cleaning, and probably a carb kit due to sitting up. If the needle valve in the carb, that is controlled by the float in the carb, doesn't unseat when the float falls (no gas in carb bowl) the bowl can't fill with gas and supply gas to the engine when cranked. You proved that with adequate fuel the engine is apparently OK otherwise.

A fuel pump diaphragm/repair kit and new fuel filter wouldn't hurt nor would a complete checkout of your tank and delivery system. Inspect the hoses in the engine for cracking and if so, replace.

Mark

 

[JoshuaFisher]

well its certainly your low oil alarm. Suspected sensor but no way to rule out the float inside the tank.. I had the same issue, sensor was shooting bad according to manual but turned out to be float in tank which you have no choice but to replace whole tank.