Programmer limitations....
The MPEM programmer you have is basically useless except for re-programming a new key or checking your hours. The reason? There are no output sensors for that year 787. If you attempt to change the rev limiter, you'll only blow up the engine, since it's already set for the highest possible operating range.
The programmer has those functions you see because it's used on many model Rotax engines and configurations. It's useful in determining problem codes in the 951 and 787 RFI and DI engines.
It's worth a good bit of money but not a lot you can do with it on your year model ski................:cheers: