Still got a Ducati ST3, and owned a 98 900ss for a couple of years from new. Lovely bike and never let me down. Bear in mind with the belts it isn't just mileage, it's time that decays them, so 500 miles wear is fine, but recommended change interval is 2 years. Clutch will probably rattle at idle because it is dry, pulling the clutch lever in should silence it, as will riding it away which is always a good idea.