Can u start a motor with a pull start on a starter box after the pull start has broke.

yeah

you have to take the one way bearing of the pull start though or you can go buy a back plate for it and remove the pull start all together

Sometimes you need lower engine mounts, because pullstart engines sit higher and the flywheel doesn't sit below the chassis cutout.

Usually you need a backplate and different engine mounts.

As long as the starter donut contacts the flywheel and it is spun in the right direction it will work! No need to tear anything apart.

Ryan