The low oil warning buzzer comes on immediately when the ignition is switched on. There is of course sufficient oil in the integral and remote tanks. The tach guage flashes all three arrows and the buzzer sounds continously. Here are the steps I have taken so far: I have an extra Yamaha motor on another boat so I am able to swap out parts for troubleshooting. (I know - it's the rookie way of trying to fix the problem, but that's because I am a rookie) I changed all four wiring harnesses and I changed both the integrated and the remote oil level sensors. I changed the remote oil pump and <br />checked the filter for obstructions. I inspected the wiring and all of the grounds that I could see (even wire brushed the grounds on the block)<br />Additionally - I have inspected every splice and fuse that I could reach,--still the same problem. I have read the clymer manual cover to cover and must be missing something. By the way - With the engine running, if I disconnect the blue wire at the connection where it goes into the remote oil pump -the buzzer quits sounding and the guage reads normal. The motor operates normally with the exception that the remote pump is disconnected. If I plug the blue wire back in -the buzzer sounds. Of course I do not wish to operate the motor w/o an operable remote pump - afraid I might slip up and let the integral tank run too low and burn the motor. My frustration meter is pegged! I read all of the posts that seemed related and am now wondering if this could be a trim sender problem and how would I check that. Thanks alot in advance for any help. <br />Stan
