i just bought a 2011 crf450. ive never been able to afford one untill now . the salesmen at the dealer told me to ride at 3/4 throtle as much as possible for the first 10 hours. but the serivce manuel just says avoid full throttle starts and rapid acceleration for the first day. then another dealer told me to go down hill as much as possible with no throttle to create a lot of vacumm. i have no idea what to do.