Hello. A guy from work and I just bought 2 leftover 2007 WR 450's this past Tuesday. He just called and said his overheated after about 30 minutes of riding tonight. His header pipe was glowing red (normal according to the archives) and steam was coming out from somewhere under the bike. Do you think his engine is damaged? What would be the recommendation for preventing this in the future? None of the free mods have been done because he was hoping to keep it stock until he was used to it.