Hi, I need help on this one. My warning buzzer starts going off at idle speeds after cruising aroung the lake at a good clip. The engine does not appear to be hot. The impeller was replaced about 30 hours ago. However, this was the first run in about 2 years.Other than the impeller, what is likely to be the problem ?thanks !, john c.
Yes, I would change-out the impeller. What happens when an outboard sits for a year or sio, is the impeller will form a shape to the concentric pump housing. The impeller you pull out will look fine,but some or all of the vanes will have a curve in them.
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Thanks, I'll check out the impeller. Do you know if the warning buzzer might also indicate oil pump problems (Although I don't think so in my case because it is really running great).thanks, john c.
Yes ,( sorry ,I'm on a one-track path tonight)it could be indicating a low or no oil on an oil-injected engine. The senders are the most common item to fail, and the sound of the buzzer will tell you what's up. Consult the owner's manual for the definitions.
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"Did you hear about the guy whose whole left side was cut off? He's all
right now."
The warning buzzer goes off for 2 reasons:1. Critically low oil in the reservoir in the oil tank. The buzzer is not in anyway connected to the oil pump, but bear in mind, these Mikuni-Yamaha oil pumps are very reliable.2. Powerhead overheating.John