Are you running the stock pipe still or an aftermarket one? With my dasa the head pipe did glow red when I was running lean I also ended up heat wrapping my pipe to help cure some of this issue, but it never glowed red with the stock. If you're running an aftermarket pipe you do need to get a fuel controller to richen the fuel map the stock controller can't compensate that much for a pipe and especially if you add an intake to the quad as well.