Just bought a 09 rmz450 for my first bike. I'm 33 and didn't want to have to upgrade in six months. Any advice for me starting out. I'm super keen but have no idea what I'm doing. I've read a lot about tuning the suspension to your weight. I'm about 85 kilos. Not sure how many pounds that is. Can you do this yourself or is it a shop job? So excited I feel like a little kid again. Yeeewww!!!