Convert Proform ignition to Pertronix?

Tx halifaxhops. I heard the pertronix I had a problem with burning out if the ignition is left on. Is this a real worry, or "just theoretical"?

My first carter pump burned out for this reason after a week. It was wired to the ignition and whirring away (without fuel) while working on something else. I was told AFTER that the petrol is the lubricant. STUPID DESIGN!!!
As I had already made the mounts, I replaced it like for like but it still smarts...