I just got my new 04 WR450 and I need to set it up for a rally race in Ecuador. I have never owned a Yamaha at all so I don't know the tricks. The rally is 6 days of racing, 2000 miles. Mostly dirt roads with some pavement thrown in. Also from sea level to 15,000 feet elevation. And high speed, very high speed. So far, all I have done is put in 1 size larger main jet and raised the needle 1 ring, and pulled the baffle (I hate loud bikes, but I'll deal with that later). It has a bad stumble and runs rough in upper midrange. Recommendations for sea level? For 10,000 feet? For over 10,000 feet? I will disconnect the grey wire also. I also need to make sure the bike finishes this race. What do I look out for? Bolts that especially need locktite or safety wire? Things that break? Anything? I also need to change the gearing. I have already changed the front sprocket from 14 to 15 teeth, but think I need more top end. I would like it to top out around 100mph. Anybody know the gearing for 100? Thanks in advance.