Warning Buzzer

[gary14wv]

Need some experts advise, I have a 1998 S200 Yamaha outboard and I have a warning buzzer going off when I turn on the key and it stays on after the engine is running.
I disconnected the plug on top of the oil tank on the boat which is full of oil, with this plug unplugged the buzzer will stop, as soon as I connect the plug back the buzzer sounds again.
The plug has 4 wires (Brown,Black,Blue,Black/Red)
The tank mounted on the motor is also full of oil.

Can someone advise me how to troubleshoot this oil tank to find my problem.
Thanks for any help.

[boats.net]

Sounds like have a bad oil level sensor.

[gary14wv]

Warning Buzzer

Is there a way to test the oil lever sensor, to make sure that's the problem?

Thanks

[99yam40]

See if this chart will help you http://www.yamahaoutboardparts.com/42120-post4.html



a service manual for your motor would help you

[gary14wv]

Thanks for the chart, I will check it out.
Parts are so expensive I sure don't want to replace it if it's not defective.
What is the best service manual to buy?
Thanks again

[boats.net]

Can order Yamaha manuals at YAMAHA MANUAL STORE