Ok, so Ive been riding all my life (5-16) and have never really had to maintain or take care of a bike. My dad has always done that. But now that he's letting me keep the bike at my house I am eager (sp?) to learn what all I have to do to take care of it and run it. So, lets start with the basics. 4 ounces of oil to every gallon of gas, spreay the chain every once in a while... But I am curious about the other chemical stuff. Like transmission oil, and cooland and stuff like that. Also, how often to change/oil the airfilter. So Id really apreciate it if you guys could help me learn what all I need to do to keep the bike running well. Note that its a 1999 CR250r. I am really curious about; 1. Transmission oil. When and how to change it and also what kind. 2. Coolent. When and how to change it and also what kind. 3. and all the other basic stuff like that. Thanks.