Loosen the exhaust strap:

Use an 12mm wrench to loosen the exhaust band lock nut.

A 6mm Allen key is required to unscrew the bolt at the bottom of the band.

The Allen bolt is screwed into a loose nut in a cavity cast into the swing arm. It may fall out or become twisted. A magnet is helpful in retrieving it to re-align it for reassembly.

Once the bottom of the strap is loose, you can push it upward and slide the retaining pin that secures the top of the strap out to release it.