Ignition Issue, motor wont stay running

HOW THIS WORKS

When the key is in the "run" position, you have two ignition switch contacts live...."run" and "acc"

When you twist the key to start, things change, and you end up with two contacts live, ONLY the 'start' (yellow) and the bypass/ IGN2 (brown) which feeds full power to the lgnition system during cranking

The "start" and "bypass" (IGN2) are live at same time but they are DIFFERENT contacts and different circuits in the switch, so don't try and use the yellow for this purpose