I installed the yz450 cam in my '02 wr426. With the stock cam I could start the bike, first kick, everytime. With the new cam, I'm lucky if it will start in 5 kicks. It bump starts super easy. Also, it doesn't seem to have the power it had before. The jetting is all stock, 165 main, 2 turns out on the fuel screw. The timing mark on the new cam is rotated about 1 tooth forward. Elevation: 500 feet. Plug: tan color. Any advice is appreciated.