I just bought a very lightly used 08' WR450. It had a JD jet kit and TT AIS removal kit already installed. The throttle stop is cut to the correct length, the air box baffle is removed, the exhaust baffle is removed, and the grey wire was cut. The bike runs very smoothly (jetting is very good) but it did not seem very strong compared to the last two WR250's I had. I jumped on the dyno this weekend to check it out. 36 hp. I tried a few pipe options without much change (less than 1 hp). Out of curouisty I did back to back dyno runs this afternoon with the grey wire reconnected and then cut again. No difference whatsoever in the peak power, power curve, or air/fuel. Any ideas before I start checking out the motor?