The battery is strapped into a tray on the left front, just in front of the shocks. The existing electrical harness should have a plug waiting to be plugged into the starter, at the same location as the battery. Since it doubles the time to remove the engine if there is a starter motor, you might want to put in new front engine mounts before you attempt to install the starter. The primary clutch has to have an attached gear and that may not have been in your kit. They would be hard to find now.