I, personally, would follow the owners manual. With the exception that I would change the oil and filter at 500 miles and then do the 1000 mile service as recommended. It can't hurt and if you use dino oil at 500 miles, it's cheap insurance. Then at the 1000 mile service you can choose if you want to go with synthetic. But that's another thread topic.
GM80, puttering around is as bad or worse for it than riding it , "briskly" would be, when climbing hills, downshift to fourth and let it run free and easy, that kind of thing.
have to give your bike and engine time to heat up and expand/cool down for the bolts to do the same. If your dragging the bike like your at the track every time you ride then most likely something will break before 3k on the odo.