How do I know if my Harley ignition module is bad?

Usually when the module goes bad the bike either won’t start, or starts fine when cold and starts cutting out or dies when it warms up, and won’t restart until cold. Make sure the wires aren’t loose that connect to the coil.

How do you test a Sportster ignition module?

Disconnect both spark plug wires from the spark plugs. Unscrew either one of the spark plugs and stick it back into one of the wire caps. Lay the plug down on the cylinder head or anything grounded. With key on, run your starter for two seconds and look at the end of the plug: a nice, fat blue spark = healthy coil.

Why is my coil getting hot?

If your coil is getting too hot, you’re probably pushing things a bit too far and drying your coil’s wick out before it can pull more e-liquid from your tank. You’ll know that’s happening because you’ll see burned spots on the wick when replacing your coil. If that’s the case, you need to tone things down.

Do Harley Sportsters overheat?

the bike gets hot, but never had it overheat, and i’ve been in some bad traffic. If you’re in traffic for too long, you’ll just have to pull over and let it cool down. you can put synthetic oil in as i’ve heard this will make the bike run a bit cooler.

How do you test a control module?

How to Test an Ignition Control Module

1. Remove one plug wire at the spark plug and insert an old spark plug into the end of the plug boot.
2. Check for voltage at the coil positive terminal when the ignition key is on.
3. Locate the ignition module positive (+) wire.
4. Locate the ignition module negative (-) wire.

What does a Screamin Eagle ignition module do?

This module is programmed to allow the engine to turn 7000 RPM and retards timing by 5 degrees at wide-open throttle.

How do I know if my Sportster is overheating?

The most obvious sign of an engine overheating is a hot engine:

1. High-Temperature Reading. Excessively high readings on your Harley’s temperature gauge are a good indicator that your bike is overheating.
2. Steam or Water From the Engine.
3. Loss of Power.
4. Engine Stalling.

How long can you let a Harley idle?

According to Harley-Davidson, carbureted models should be started on the enricher and allowed to idle for maybe 30 seconds; after that you can push the enricher back in as soon as the engine runs smoothly, and, of course, ride away.

What are the signs of a bad ignition control module?

Signs of a Bad Ignition Module

• Acceleration Issues. The vehicle may shake, vibrate or jerk when the gas pedal is pressed. There may be hesitation or lack of power during increases in speed.
• Temperature Problems. A faulty ignition module can cause a vehicle to overheat.
• No Power. The engine may turn over without starting.

What causes ignition module failure?

Sudden Failure. If your vehicle stalls unexpectedly during operation and will not start again, it is likely because of loose or corroded electrical connections in the ignition module. In this case, check the switch, clean oxidized terminals, and replace broken wires if necessary.

Why is my Sportster ignition not working properly?

Finally, he came across comments which indicated that detonation problems were fairly common with Sportsters because of the ignition settings and advance curves that Harley-Davidson uses in its stock ignition module. Most problems are mild and go unnoticed unless the stock ignition module begins to fail.

Where is the ignition sensor on a Harley Davidson Sportster?

The crankshaft position sensor location. The I.C.M. (ignition control module) was used on Sportsters before the year 2007. After 2007, the module became integrated into the E.C.M. (electronic control module). These modules contain internal circuitry found on most computer motherboards.

How does the ignition coil work on a Harley Davidson Sportster?

The ignition coil on later model Sportsters. The crankshaft position sensor is used to determine the crankshaft’s speed and position. The E.C.M. or ignition module uses this information to correctly time the spark at the spark plug with the piston.

What happens when an ignition module overheats?

Ignition modules that are overheating will soon completely cease to function and in the meantime can cause cause electrical shorts, engine stuttering, lower gas mileage, power loss, stalling, and gasoline odors in the exhaust.