Inside the rear air cleaner, the plug wires were then free to connect to the distributor cap. At the spark plug end of each aluminum tube, I also in-stalled tube nuts and –6 hose ends that mate flush to the spark plug boots (the hose ends were secured using epoxy adhesive, giving them the appearance of being attached to the boots). Step 2: Out With the Old, in With the New. Once you’ve found a bad wire, the solution should be simple: Replace the plug wires. First, you have to decide whether you want to buy from a car dealer at list price or get a quality aftermarket brand, if you have that choice. Prices for 1980s models may be under $35 for a popular make at the parts Another test: With a jumper wire, ground the metal shank of a screwdriver that has a well-insulated handle. Then, run the tip of the screwdriver along the length of each wire and all around at the The distributor has a shaft that gets spun by the camshaft. That moves other distributor parts that cause the ignition coil to pulse, and sends the electricity down each spark plug wire in order. The power travels down the spark plug wires to the spark plugs and causes sparks. The sparks ignite the fuel and air in the engine cylinders. The distributor is what gets that high voltage from the coil to the right cylinder. The connection is accomplished through a cap and rotor. The ignition coil connects to the rotor, and the rotor spins around inside the cap. The coil passes a high-voltage pulse through the rotor each time it passes a contact in the cylinder, transferring its For example, the top spark plug (cylinder 1) is connected to a yellow wire, while the bottom one (cylinder 2) is connected to a green wire. In addition to connecting the spark plugs to their respective cylinders, you also need to attach ground wires to each spark plug. The ground wires are usually black in color and are attached near the spark Spark Plug Wire Routing Question - 2016 Ultra Limited. I purchased a set of Screamin' Eagle spark plug wires for my 2016 Ultra Limited. After reading the threads on plug wires rubbing against the inside of the fuel tank (which was the case for me) I wanted to replace my spark plug wires and decided to get a better set while I was at it. Spark plug wires. Four spark plug wires (distributor end on the right, spark plug end on the left) Spark plug wires (also called high tension leads) are electrical cables used by older internal combustion engines to transmit high-voltage electricity from the distributor to the spark plugs . Tension in this instance is a synonym for voltage. 2WtwzE7.