I have a few questions that maybe you guys could help me out with. I'm looking for a bike to race for two seasons. I'm from canada so that's about seven months per season, and I'll race every weekend. I have limited income to spend on repairs thus the 250 two stroke was my bike of choice. However, I found an 05 yz450 with 15-18 hours on it at a pretty decent price, 5300 canadian. So my questions would be, (cause I don't know anything about fourstokes) how much repair and maintenance do you think I'd have to do to make it last one or two seasons. Also what is the worst case scenario for cost repair? I'd like to know realistically how much a blown 450 would set me back, that's worst case. Lastly, how do you think this bike would fare over a season, more preferably two seasons. I've never owned or raced a four stroke and I'm really concerned that I'll get burned by it financially. Sorry for the long drawn out post, your response would be sweet.