According to the service manual, the 600 mile service includes changing the oil and filter, checking the idle speed, inspecting the throttle cable play, inspecting the brakes, inspecting the drive chain, tightening the exhaust bolts, and tightening chassis nuts.
If you feel you can handle that, then I would say go for it. However, if you have any issues down the road that may need to be covered in warranty, they may burn you on it.