How's it going? I have a '06 WR450. I have a chance at picking up a '07 YZ roller. Will my engine fit the aluminum frame? My bike is cherry but the roller is cheap and I wouldn't mind upgrading to aluminum. I have the jets dialed in so I am not concerned with the tighter access. I just don't know if they changed the motor mounts from the steelies to aluminum frames. Thanks guys.