Instructions
Insert the game disc into your Wii console. Read the health and safety information and then press "A" on the Wii remote.
Point the Wii remote to an open channel on the Wii Menu and press "A" to install a Wii Fit channel. This allows you to do a body test and check your progress toward goals in the game without having the game disc in the console.
Point to the "Start" option when the "Wii Fit" channel preview screen appears and press "A."
Press "A" on the next screen to create save data.
Remove the battery compartment and press the red sync button after installing four AA batteries.
Open the SD card slot on the front of the Wii and press the red sync button here. This will complete the synchronization process.