OK... I currently own a Merc powered boat... but your local seadoo dealer won't have anything for it.
If you are considering it... you will need to find your local Mercury dealer, and ask if they will be able to do the service on it.
Even if you can do all your own work... parts aren't cheap for the merc drive system.
Yes... it's a good boat, but you need to weigh your options. If you are thinking of buying it... you need to take it for a water ride, and have a trusted mechanic check it over.