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Richard Hill
Richard Hill, Customer Service
Category: Electronics
Satisfied Customers: 534
Experience:  A good general knowledge of electronics, computers and telephony. I can usually get most things fixed.
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Engine starts and runs ok but the oil sounder goes off after

Customer Question

Hi engine starts and runs ok but the oil sounder goes off after about three minute I have plenty of oil in the two stroke tank. The engine carries on running with out slowing or cutting out. Any idea what it can be. .?
Submitted: 3 months ago.
Category: Electronics
Customer: replied 3 months ago.
Should have said its a50hp boat yahama engine
Expert:  Richard Hill replied 3 months ago.

Hi,

It could be that the oil filter is clogging, have you checked or replaced that?

Best Regards,

Rich

Customer: replied 3 months ago.
Hi Rich,
Thanks for coming back to me, the oil filter was in fact the first thing we checked, I was wondering if there is an electric sensor in side the two stroke oil tank that that could give an eronius single. Peter
Expert:  Richard Hill replied 3 months ago.

Hi Peter,

There is an oil pressure switch which will cause the buzzer to sound if the oil pressure is too low. It could be faulty or may have a poor connection?

There is also a CDI unit (with built in microcomputer) which the oil pressure switch connects to and that triggers the buzzer, so if it is faulty or has faulty connection that may also cause the problem.

You can download the service manual here:

https://www.manualslib.com/download/909046/Yamaha-F50a.html

Hope that helps

Best Regards,

Rich

Customer: replied 3 months ago.
Thanks Richard, will take on board your ides and run a check tomorrow, or buy a pair of ear defenders .. Peter
Expert:  Richard Hill replied 2 months ago.

Hi Peter,

All the best with that, they'll keep your ears warm too!

Best Regards,

Rich

Richard Hill and 3 other Electronics Specialists are ready to help you
Expert:  Richard Hill replied 2 months ago.

Hi Peter,

Thanks for the positive rating, hope that's all working now.

Best Regards,

Rich

Customer: replied 2 months ago.
Hi Richard, re: my question about sounder going off, have now striped out the thermostat and it was total ally blocked with sea salt, so much for getting my engine serviced every year by a marine engineer .
Thanks for your help
Peter
Expert:  Richard Hill replied 2 months ago.

Hi Peter,

Sorry to hear that, was it a marine engineer or a pirate! :)

Glad it's fixed now.

All the best,

Rich