SX210 Duplicate Hr. reading for both engines

[Chaswe75]

Good day,

Bought a 2011 SX210 that had a starboard engine replaced. Hooked up the YDS and did some preliminary checks after purchasing the vessel. To my surprise, both engines are reading the same 163 hrs. Obviously the original port engine must have at least 500+ hrs. Any idea why plugging in to each separate engine gives the same hr. reading? My assumption is the hrs were wiped by the Yamaha dealer upon new engine install and there was not an option to retain the other engine's reading. Thanks

 

[Beachbummer]

Can you see the different serials for each engine?

Making sure you are plugged in to each different one in your read.

I had not read about dealers being able to reset hours.

Also,
Some people put way less hours that you would think on a boat. Those may be accurate lifetime hours unless you know otherwise too... My boat had 10 years and barely 100 hours when i bought it. That trend did not continue

 

[Gozills]

Good day,

Bought a 2011 SX210 that had a starboard engine replaced. Hooked up the YDS and did some preliminary checks after purchasing the vessel. To my surprise, both engines are reading the same 163 hrs. Obviously the original port engine must have at least 500+ hrs. Any idea why plugging in to each separate engine gives the same hr. reading? My assumption is the hrs were wiped by the Yamaha dealer upon new engine install and there was not an option to retain the other engine's reading. Thanks

Ecu stores the hrs and i assume it was not changed

 

[Chaswe75]

Can you see the different serials for each engine?

Making sure you are plugged in to each different one in your read.

I had not read about dealers being able to reset hours.

Also,
Some people put way less hours that you would think on a boat. Those may be accurate lifetime hours unless you know otherwise too... My boat had 10 years and barely 100 hours when i bought it. That trend did not continue

Different serials, have the receipt for the new engine. Same dealer installed. Hehe yep plugged in to each port on each engine. Both engines read the same hrs.

 

[Beachbummer]

Maybe you totally lucked out, and that's the total hours in those ECUs.

 

[Chaswe75]

Maybe you totally lucked out, and that's the total hours in those ECUs.

Wouldn't that be a dream. The most gently used SX ever. I just want know how much life is left on the original engine. Kind of strange the ECU is duplicating the hour count of the new powerplant. They are separate computers.

 

[Beachbummer]

Don't over complicate... The ECUs are not connected to each other as far as we know.

Either that's their original number or someone somehow hacked both with a low number to match. No clue how that could be done. It is suspicious that the numbers would match exactly, but it's bound to happen to someone randomly.

 

[Beachbummer]

When you look at the break down but RPM do you see subtle differences??

 

[Chaswe75]

When you look at the break down but RPM do you see subtle differences??

I'll grab a snapshot in YDS.

 

[buckbuck]

Upload the entire freeze frame from each engine. Mine have never been exactly the same. It would seem odd that yours are.

 

[Chaswe75]

About to get back to this and pull the data. I would never think it could happen either but there is ~.3 hrs difference between the two engine's hrs reading and I have a receipt for the starboard engine replacement. The Port motor is seemingly original..I am going to inquire with the marina that sold me the vessel. They were a Yamaha dealer. If in fact they could flash both ECUs and fudge the hrs after a single engine replacement..sounds dramatic

 

[Beachbummer]

The ECU stores the hours, so those should be called ECU hours.

New engine would not affect hours.

The simpler explanation is that it's a low hour boat.

 

[Chaswe75]

I had an experienced Yamaha jetboat mechanic evaluate and he said Refurbed Starboard motor, ECU was never flashed. Hence both engines read the same hours.