Ok I just started ridding MX after 20 years. I have been ridding dirt again for about a year and street bikes for 10 years . I have introduced my son to dirt bikes and started ridding on the local tracks. I had an 96 XR 400 and knew I needed an upgrade so I really did it. Bought a New YZ450F 2005. Rode it a few times and was getting real comfortabel on it until last weekend. I was so comforatable I broke 5 ribs and knocked myself silly while my wife was watching my son and I ride. Ok now that you have you quit laughing I need to tune it down some until I get used to all that power. The wife has cooled down some and we can keep ridding. HaHa. Liek we would stop anyway. I need advice for mods. I know I need to do the following: -Fly wheel weight- for Trail ridding mostly. What size. -Suspension work. Front and Rear. I weigh 245 right now. -Skid Plate. -Possible 1/2 turn throttle ? -Any other sugestions ?