Oil changes

   I remember reading through the manual for scooter. It's started that you replace the oil at 300 km, 1000 km, and then every 4000 km from then on. I was wondering why because that isn't a very long distance.
   When I did the first oil change at 150 km I found out why. A screen functions as the filter so it doesn't really capture any dirt. It just kind of accumulates in what's essentially a sump. Anyway, it requires oil changes more often than what you're used to doing. I just passed the 400 km mark so I'll probably do one more oil change in the next few days.