[Phil Gillespie]

I requested info from Vintage Garage who I had got bits off for the 12v converstion.

Hello Simple
Your starter needs 12 volts to your denso starter may need to replace your single wire button to 2 wire so when you push the button delivers 12 volts currently your button goes to ground will not work with your new starter.

Jay.

Just wanted to keep all starter sequence as per original as much as possible.
Phil NZ