Yamaha 150 2-Stroke data etc.

[Nasher]

Asking for a Friend - yes really.

He's looking at a boat with the last of the Yamaha 150HP 2-strokes, Externally in great condition but wants to be able plug in and download the service data, hrs, etc. Not sure of the exact year at the moment.

Is this easily achievable?
Is the software available to download?
Are the leads easily available?

What data would be available from the Gauges?

Would appreciate any help.

Thanks.