On Saturday, I changed out my timing chain in my 2000 YZ 426. It was pretty streched out. Anyway, I put everything back together and it fired up with one kick. Went out riding yesterday and I noticed that I'm lacking a little horsepower compared to the way it ran before I changed out my timing chain. It's not a huge horsepower loss but there is a difference. Anybody have any clue as to what is wrong? Maybe i didn't align the cams correctly?