MV Agusta race bike - setting the timing on the 125 Monoalbero

The timing on my 1953 125cc MV Agusta race bike was out, so this is how I reset it to 53 degrees BTDC.
Turn the sound up at the end ......

[@dbmail545]

Good Lord, that can't be less like a multicylinder MV Augusta. Not to mention timing a magneto without the use of a "buzz box".