On a magneto engine you charge the coil by flipping the motor over. The faster the better. On a G-38 the flywheel is larger so you can get a good charge wiht a slower flip. The flywheel on the G26 is smaller so you need a faster flip.
C&H used to sell a device that charged the coil from a battery so it made it easier to start. I don't know if they still do.