Just picked a new 06 WR450F last week and took it out for my first ride over the weekend. First ride was about 10 minutes, nothing too crazy, and when I got back into camp, I noticed the exhaust manifold directly coming out of the engine was cherry red hot, almost white, for about 8 inches from engine mounting interface. Now, I was not pushing this bike thAT hard! I have seen hot pipes before, but nothing like this after a mild ride. Question, is this normal for a pipe to glow like that, or should I haul this thing back to the dealer?