To repair an outboard motor that has loose throttle cables, first check to see if the throttle is in the right position and then move the throttle back and forth. This helps to get the boat back to the dock, but it still needs professional tightening at the marina.
If the engine does not start, a repair may include a faulty kill-switch clip. If the engine or boat has a kill switch, check to make sure it is in place or try to reinstall it. If the engine still does not start, there may be a loose connection between the ignition and switch. Check that all of the wires have a connection and that there is no visible corrosion. If corrosion is present, use a spray oil, such as WD-40, or install a new kill-switch clip.
If there are still issues with the outboard motor, check to ensure that the battery terminal wires have a connection. The post nuts that hold the wires in place often loosen up due to vibration. Tighten these loose nuts with a wrench and check for corrosion. If corrosion is present, spray with WD-40 or scrub the terminals with a wire brush and baking soda. Replace any cables that have corrosion as soon as possible.