i have a 1998 yz400f and i got it all dialed in and i would like to ride it on really tight trails, and i have to clutch it all the time i can barley keep it running because i am reving and riding the clutch all the time. im going 1 tooth smaller in the front, but what else can help me? also what does anyone else have on their 400/450's? im also thinking about fly wheel weights. let me know guys!