Here is the oscilloscope waveform of a Victa Utility 460 "Powertorque" engine: Unfortunately, I can't measure the primary voltage and current on this coil as it is the later type with the built in module.
It's typically in the 300-350V peak region, and is somewhat rpm-dependent, for these magneto ignitions.
Cheers, Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."