Question: How Do I Tell Which Wire Is My Ignition Signal Wire On My Harley Davidson?

What wires go to the ignition coil?

They usually required only three wires: the spark plug wire, the power wire and the ignition switch wire. Ignition coils of this type are usually a little larger than a soda can and are heavy because of the metal core and the field coil windings.

Where do ignition coil wires go?

The coil wire goes from the coil directly to the center of the distributor cap. Under the cap is a rotor that is mounted on top of the rotating shaft. The rotor has a metal strip on the top that is in constant contact with the center terminal of the distributor cap.

Is a Harley coil grounded?

The coil has no frame ground. To test,,,, Disconnect the 3 wire trigger module (under nose cone) from the wiring harness. Set up a spark gap on one of your plugs so you can see the gap or test spark when it fires.

You might be interested:  Quick Answer: How To Value Your Used Harley Davidson?

How does a Harley coil work?

The coil consists of two windings of wire, the primary and the secondary. The primary receives 12 volts from the motorcycle and allows voltage to build; transferring voltage to the secondary winding where voltage is increased to thousands of volts and released through the spark plug wires to the spark plug.

What gives power to the ignition coil?

The battery provides low voltage electricity to the ignition coil. 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.

What are the two wires on a coil?

The wire that goes from the ignition coil to the distributor and the high voltage wires that go from the distributor to each of the spark plugs are called spark plug wires or high tension leads.

How do you wire up a coil?

How to Hook Up an Ignition Coil

  1. Disconnect the battery negative (-) lead using a socket and ratchet. Locate the vehicle coil.
  2. Locate the coil wire leads and mark them positive (+) and negative (-).
  3. Connect the positive (+) coil lead wire to the positive (+) terminal of the coil using a small combination wrench.

How do you know which side of the ignition coil is negative?

The side terminals of the coil are marked positive (+) and negative (–) and these are where you can measure the resistance of the primary windings. Set the multimeter to the 200-ohm setting and attach the meter’s leads corresponding to the terminal markings, red being positive and black being negative.

You might be interested:  Often asked: What Happened To The Motorcycle From Harley Davidson And The Marlboro Man?

Does electronic ignition have a coil?

In an electronic system, you still have a distributor, but the points have been replaced with a pickup coil, and there’s an electronic ignition control module. In this system, coils sit directly on top of the spark plugs (there are no spark plug wires), and the system is completely electronic.

Do you need to ground ignition coil?

The simple answer is no, the coil case does not have to be grounded for the ignition to work properly.

Does a MSD coil need to be grounded?

All the other MSD coils do not require external grounding This is true, it is not “required”. but it is beneficial. The primary and secondary windings are connected inside the coil. The black wire to the coil – terminal is connected inside the CD box to the large black power wire connected to the battery.

Do motorcycle ignition coils need to be grounded?

That ground wire, if bolted to the frame of the coil, is still needed, but it’s not for the coils, it’s for other items on the bike. It just happens to use a coil mounting bolt. So it needs to remain. If the voltage is too high, then check the voltage on the brown wire at the regulator/rectifier.

How long do Harley coils last?

A Harley ignition coil is expected to last up to 100,000 miles if it’s properly maintained and if the spark plugs are replaced before they burn out.

How do I know if my motorcycle coil is bad?

How to Check a Motorcycle Ignition Coil

  1. Turn off the motorcycle ignition.
  2. Disconnect the spark plug wires from the coil by hand.
  3. Measure the resistance between the coil connections for the spark plugs with an ohmmeter.
  4. Measure the resistance between the two smaller primary wire connections on the coil with an ohmmeter.

Leave a Reply

Your email address will not be published. Required fields are marked *