NMEA 2000 Engine hours

[gliderflyer]

I recently bought a used 2020 Yamaha F70LA from a local dealer and manufacturer of our favorite boats. It was advertised as having 333 hours. I now have it installed and connected to my NMEA 2000 network and my Garmin UHD 94sv is reporting 427 hours.

Before I finish, and send my email to the dealer, is there some possible reason for the discrepancy other than the motor hours were not represented to me accurately by the dealer?

[croaker stroker]

I wonder what a different dealer would charge to give you a diagnostic read-out of your new engine?

[gliderflyer]

That may be my next step to swing by Bayside Marine and see what they say.

[DARice]

Could be that the PO had a separate hours meter that wasn't installed with the motor, or was inaccurate, but was the basis for their hours #. I'd consider taking it back to the dealer and having them pull the numbers...and adjust the price as needed. Almost 30% more hours is meaningful, even at those low hours. That is, unless they are giving you a story that has you doubting their honesty.

Dave

[croaker stroker]

The read-out will not only tell you the hours, but should give you overheating, over rev, hours at various RPM, etc.

[Fisherdv]

Your NMEA hours readout is probably correct. It reads straight from the motors ECM.

[AJFishin]

First off your Garmin might have extra hours that hasn't been cleared?

Second when I was looking into N2K systems and engine hours I came across some information with how hours are calculated.
From what I can remember, there's actual engine run time and key on run time. I think it has to do with the EMM / ECM and leaving the key on but the engine not running.

Still worth getting it checked imo.

[gliderflyer]

Thanks for all the input. I'll definitely get it to Bayside and have them check it for me. I don't think anyone was trying to pull one over on me, just a possible dropped ball. The run time vs key-on time sounds like a possible culprit, but 100 extra hours of key-on time sounds like a lot, we'll see.

I'll be taking the motor for its first voyage on my Sea Hunter to try and wrangle a ling cod this weekend. So far, it's ran like new in the tub and looks literally brand new under the hood.

[croaker stroker]

Be sure to get the printed report for your records. It will be good to have if you ever decide to sell it.