How about a high current diode from the start contact to the ignition contact?
12v will then be on the small red wire in both positions.
The start contact would be still 0v in the run position.
Why have you got the neutral safety switch wire off IGN? This may be your problem. This should be coming from "Start".
Last edited by Gaz64; 10-09-2012 at 08:40 AM.