Ignition Switch Bypass

How do I bypass a bad ignition switch on a 1927 model t.

There are several ways to do it. It kind of depends on if the magneto works or not. Whichever that is will lead your decision on a two position or three position switch which will have to be installed somewhere. The ignition schematic is in every copy of the Ford owner’s manual. The new switch will replace the original one.
Dykes wiring2