Where do you plug the leads of a Milton 1200 engine analyzer to?

To use a Milton 1200 engine analyzer, you typically plug the leads into the vehicle's diagnostic ports. The red lead usually connects to the positive terminal of the battery or ignition circuit, while the black lead connects to the ground or negative terminal. Additionally, specific leads may connect to other components, such as the spark plugs or sensors, depending on the tests being conducted. Always refer to the user manual for detailed instructions specific to the model.