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Quick Answer: How To Know If Harley Ignition Coil Is Bad

What are the symptoms of a bad motorcycle coil?

Usually a faulty ignition coil will produce a few symptoms that alert the driver of a potential issue. Engine misfires, rough idle, and loss of power. One of the most common symptoms associated with a faulty ignition coil is engine performance issues. Check Engine Light comes on. Car is not starting.

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 long do motorcycle ignition coils last?

Typically, modern ignition coils will last 3 days or 30+ years without much trouble in between. But that doesn’t mean they can’t go bad — and some do. Replacing one during the life of one of these bikes would be unexpected, though; replacing two indicates that you’ve got another problem in your ignition system.

How do I know if I need a new ignition coil?

If your engine misfires or stalls when you are idle or when you stop suddenly or accelerate, there could be a problem with your ignition coil. A misfire — which can sound like a coughing or sputtering noise or feel like a jerk or strong vibration — means that one of the engine’s cylinders is not firing correctly.

How long does a Harley clutch last?

Typically you can expect your a motorcycle clutch to last between 20 000 and 60 000 miles. A clutch that is often slipped in the friction zone and that is not properly maintained may need replacement after as little as 5 000 miles, while many riders do well over 100 000 miles on the original clutch.

How do you test a Harley Twin Cam coil?

Set the ohmmeter to read resistance on the “Rx1000” setting. Measure the resistance across the two larger terminals on the coil. The ohmmeter should read between 10,000 and 12,500 ohms. If the meter reads outside of the ranges for either of the above measurements, then the coil is faulty and should be replaced.

What causes ignition coil failure?

Coils fail for a variety of reasons including heat, vibration, or issues on the secondary side of the ignition system. Worn secondary ignition components such as spark plugs or wires can cause a coil work harder, require more voltage, and therefore significantly reduce the operating life of the coil.

Should I replace all ignition coils at once?

A faulty ignition coil cannot be repaired; it must be replaced. In cases like this, to prevent future problems, your mechanic may recommend replacing all three rear ignition coils. Whenever one of the ignition coils goes bad, it’s also recommended replacing all spark plugs if they haven’t been replaced in a while.

What causes ignition coils to keep going bad?

The leading cause of premature failure of an ignition coil is due to a worn or bad spark plug ignition cable. A bad spark plug ignition cable will have a much higher than normal resistance. This excessive voltage creates a high amount of heat which consequently melts the coil’s wire insulation.

What are signs of ignition problems?

Look out for these common signs of ignition trouble. Key won’t turn. If the key won’t turn be sure that the ignition lock is not engaged by turning the steering wheel back-and-forth until it locks. Stalling engine. Flickering dash lights. No sound from starter motor. Car does not start.

What does a bad coil pack sound like?

Engine misfiring will be seen in a vehicle whose ignition coils have failed. Trying to start the engine of such a vehicle will result in engine misfiring that sounds like a coughing, sputtering noise. When driving at high speeds, jerking and spitting will be seen in the behavior of the vehicle.

How long should an ignition coil last?

The ignition coil on your car is supposed to last around 100,000 miles or more. There are a number of factors that can lead to this part become damaged prematurely. Most of the newer cars on the market have a hard plastic cover that is designed to protect the coil from damage.

What is considered high mileage for a Harley?

For small sports bikes, 20,000 to 30,000 is on the high side. For larger bikes, 50,000 miles and up is considered high motorcycle mileage. But before you write off any models, consider that a properly maintained bike can last well past 100,000 miles!.

What Harley models are being recalled?

Here is a list of the specific models impacted: 2008-2011 Harley-Davidson Road King (FLHR) 2008-2011 Harley-Davidson ROAD KING POLICE (EFI) (FLHP) 2008-2011 Harley-Davidson ROAD KING POLICE (EFI) (FLHPE) 2008-2011 Harley-Davidson ELECTRA GLIDE STANDARD POLICE (EFI) (FLHTP).

Is feathering the clutch bad motorcycle?

If a person is at a stop light or sign on a slight grade, where a lot of feathering of the clutch does takes place, then feathering will not hurt the clutch. Most MSF riding courses recommend that you come to a complete stop and hold the hand brake, feathering is still not recommended.

How do I know if my motorcycle spark plugs are bad?

What are the signs of bad motorcycle spark plugs? The signs of bad motorcycle spark plugs include your motorcycle misfiring, backfiring, or frequently having a flooded engine. You can also look for physical signs on the spark plugs themselves which may include burn marks, broken tips, rust, and corrosion.

How often should you change spark plugs on a Harley?

In modern motorcycles, spark plugs should be replaced after every 15,000 to 16,000 miles of riding your motorbike. However, if your bike is sputtering, running rough, or even losing power, just think about inspecting and replacing the spark plug.

How can I tell if my Harley is running lean?

The first sign you’ll have of a motorcycle running lean is if you are having a rough idle. If you start the motorcycle and it has a difficult time staying on by itself or you notice a rough sputter while it’s in a stationary position, this is a good indication of a lean mixture.