identification

I just bought this Buggy and I'm trying to figure out what kind of motor it is. It's a Honda and I'm pretty sure its a 750 cc.

I don't know about motorcycles. I would like to know the model and year if possible. It has low mileage, so I assume its not too old, but don't know. I would very much appreciate some help from all you who know about motorcycles. Thanks so much! Kay