Yeah, I know a little bit. I have three for rent. Ichanged the oil at 250 miles or 400 kilometers and I recommend every three thousand kilometers. Expect to have to replace the cam chain tensioner early in the life of the bike. I have done two with the oldest bike having only 4200 kilometers. Watch oil level. Maybe the bike is thirsty or maybe it is my constant highway speed. DonĀ“t know for sure. Rear brake shoes , expect the same. If you have time now, grease the cam point inside the drum brake before it sticks in the working, as in on, as in bike no move even with foot off brake. Here in the land of the 125c.c., this modified 200c.c. draws a LOT of attention.