1. Disconnect the spark plug wire to prevent the engine from starting accidentally.
2. Remove the old belt by unscrewing the two bolts that hold the belt tensioner in place.
3. Remove the belt from the pulleys and tensioner.
4. Install the new belt by looping it around the pulleys and tensioner.
5. Tighten the bolts on the belt tensioner to secure the new belt in place.
6. Reconnect the spark plug wire.