What to do if your Harley Davidson has no spark?

Just installed 12″ bars and cam plate. Buttoned it all up and tried to start it. Motor turns over fine, however no spark. Pulled the plug wires, put another plug in wire and no spark. Took tank back off, no pinched wires. Tested B terminal of coil plug and getting 12 + Volts. Removed power commander, hook bike back to ecm, no spark.

How to know if your engine has no spark?

First Confirm Your Engine Has No Spark. 1 Disable the fuel system by removing the fuel pump fuse or relay. 2 Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. 3 Finally, Have someone crank the engine and watch for spark.

What causes a car to stall with no spark?

Consequently, An old or failing ignition pickup may cut out signal intermittently, which may cause the engine to stall. The engine may suddenly just shut off, almost as if the key had been turned off. Depending on the nature of the issue, sometimes the vehicle can be restarted and driven.

Can a spark plug be removed from a Softail?

Pull the spark plug wire from the boot (not the wire) away from the spark plug. You’ll feel it disengage from the tip. Figure 2. Do not pull on the spark plug wire. Your spark plugs may require a 13/16″ or 5/8″ socket. Turn the plugs counterclockwise with a large ratchet to remove them.

How do you replace a spark plug on a Harley Davidson?

Gapping a spark plug. Place the spark plug wire boot over the spark plug tip and push straight down. You’ll feel the boot tip snap onto the spark plug. Start your engine and listen for any rough running. This may be a misfire caused by an incorrectly installed boot. Shut off the engine and lightly twist/push down on the boots. Figure 5.

What should the spark plug gap be on a Harley Davidson Softail?

You’ll need a spark plug gap measuring and adjustment tool. Carefully pry upwards on the ground electrode to widen the gap and push the ground electrode against a hard surface to narrow it. Most mid and late 2000’s models require a 0.40″ gap. Lightly coat the spark plug threads with anti-seize.

What to do when your engine has no spark?

Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.

Why does my 2006 heritage have no spark?

I have a 2006 Heritage. There was no spark to the plugs. Was turning over real good. No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started.

Why is there no spark to my spark plugs?

There was no spark to the plugs. Was turning over real good. No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started. Then a couple of days later it did the same thing, so spark.

Why is my power commander not working on my Harley?

Check to see if you have logged any DTC’s. Leave the Power Commander un-hooked until you resolve the problem. It can stop codes from posting. Well being it started afterwards (unless it’s an intermitent thing) your coil sounds ok. It’s possible something else is causing the CPK to fail.

Why does my Harley hesitate when I start up?

One of those details might point right at a cause. – It starts just a little like it’s not warmed up right away but after it’s warm it gets bad. -If it starts to hesitate I accelerate and it goes away immediately till I let off and start cruising again.

Why does my Harley Davidson engine choke out?

I have a sputtering problem once I get on the road. I have replaced the spark plugs, replaced the fuel and the bike starts right up with the choke out, then after a few I can push the chock in and it will idle.

What makes a Harley Davidson engine sputter and cut out?

Sounds like water in float bowl or bad gas. Drain your float bowl. Try different gas. Change fuel filter. Check air filter.You might have a nest in there.

Why does my Dyna Glide not start up?

Surprisingly, a faulty fuel gauge has caught numerous owners off-guard, and upon refilling the tank, the bike has started right up. If your bike is a carbureted model and you are not getting any fuel, chances are the carb is gummed up and the jets are not flowing any fuel. A quick disassembly and cleaning is often an easy fix. Figure 7.

What to do if your Dyna bike won’t start?

Apparently, starter issues are quite common on various Dyna models, so if yours is in need of replacement, see How to Replace Starter. If you are in a bind and your starter motor is acting up, a quick tap of the solenoid with a hammer or similar small object can sometimes free the starter to start the bike.

Why does my Harley Davidson crank but not start?

There have been a few reports of a P1009 code – incorrect password also. It appears the turn signal and stalls or cranks but will not start. Try removing the ecm and security fuses, wait ten minutes and reinstall the fuses. This “reboots” the turn signal module and the motorcycle will then start from that point on.

Why is there no spark in my ignition?

An ignition module requires some type of external input in order to activate. 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.

What should the spark plug be on a Dyna?

Just disconnect it from the regulator and test the CPK side of the connector. I checked for a Dyna the primary coil side should only be between 0.3 and 0.5 ohms. I remembered 3 ohms from somewhere, maybe it was my truck. Anyhow if your coil is a sealed unit you will have to test the plug going in it.

How to remove spark advance from Dyna s?

1. Remove the point cover. 2. Remove the two standoffs holding the point plate to the engine. Unplug the wire going to the points and remove point/plate assembly. 3. Remove the bolt holding.the spark advance assembly to the engine and remove the assembly. 4. Remove the point cam from the advance assembly. 5.

How to turn on the ignition on a Dyna s?

1. Connect a 12 volt test light from the black coil wire to ground (engine case). 2. Rotate the engine until the front cylinder is on the compression stroke. 3. Remove the crank case timing hole plug. 4. Turn ignition on. 5.

Can a Dyna Super Glide crank but not start?

Discussion in ‘ Electrical ‘ started by 92chrisdyna, Aug 16, 2010 . 92 dyna super glide my bike cranks but wont start I have power to the coil and no spark I replaced the coil and nothing where do I go from here I am new to harleys and new to the forum and love some help from you guys thanks

Can a standard HD ignition be used on a Harley Davidson?

If not, check that the signal wires from the ignition wire to the coil are not corroded at the coil, or damaged where they come out of the nose cone. Is this a standard HD ignition?

Why is my Harley Davidson Dyna Glide not starting?

If your battery voltage and connections are in good condition, but your engine is still refusing to turn over, the problem may be in the starter circuit. Perhaps the easiest place to begin is at the starter solenoid on the right side of the motorcycle.

Why does my car have no spark when I start it?

As a result, This occurs after the ignition coil or module gets too hot. Furthermore, it could correct itself after the engine module cools. In some cases, a bad ignition coil will result in the vehicle not starting it all. A Bad Rotor Or Distributor Cap (cracks or carbon tracks that are allowing the spark to short to ground).

What causes a Harley Davidson not to start?

Some other ideas: 1 Problem with security module or key FOB 2 Problem with clutch safety switch, or its wiring (if bike has it) 3 Bad relay (like you said)

What to do when your car won’t start?

(I also sprayed fogging oil into the cylinders, turned the engine over by hand, replaced the spark plugs with new ones, replaced spark plug wires, changed the oil and filter, and replaced the battery.) When I first tried to start the engine it ran for maybe two or three seconds and then died.

What does it mean when a Chevy truck won’t start?

It has spark as evidenced by putting an old spark plug into a spark plug wire and grounding the plug After spraying a small amount of starting fluid into the air intake tube, the engine starts for just a moment, then dies Three or four years ago the truck had the Reduced Engine Power warning problem.

What causes a no spark condition open loop?

If after unplugging the 4-plug connector there is no spark or the spark still looks weak, this tells you that the problem is in the major ignition components like the stator, coils, cdi, spark plugs, spark plug wires, possibly a short in the wiring harness, a bad trigger coil or on EFI models your Injector Coils are bad (they measure 19-20ohms).

What are the issues with a no spark motor?

Other issues related to a no spark/Weak Spark/Wet Plugs issue: Wrong flywheel on it. Sled was only running on one cylinder. Low side coil on his stator read 360 ohms and it should have measured 450 ohms. The low side coil was bad. It kept fouling plugs left and right. The guy before ran ethanol, and never told the current owner.

Why does my Harley Davidson have no spark?

No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started.

How do you test the spark on a Harley Davidson?

If you have a dual coil you will have 2 more (C & D) terminals. Test each of these (C & D) to terminal (A) for the primary side ohm test. You can also do a volt test to the first (A) terminal by testing the voltage on it after the key is turned on for 2 seconds.

Are there any problems with a Harley Davidson battery?

Harley Davidson Voltage Regulator Problems – Not To Worry ! It’s not new for a Harley Davidson bike to experience electrical problems. Your Harley can have an issue with the battery and voltage regulator, which isn’t a big deal.

How to change the battery on a Harley Davidson?

Click…Click…Click is never a good sound when starting your bike, especially on a beautiful day to go ride. Not to worry, I am here to help ya with changing your battery out. What you’ll need is some patience and tools: New Battery (of course), take your old one to an auto parts store and exchange it for a new one, about $80ish. Loading…

What should the voltage be on a Harley Davidson Dyna Glide?

Use a voltmeter to measure the available voltage at the battery. A battery that is 100% charged will have approximately 12.6 volts, whereas a battery with a 0% charge will read 11.8 volts or lower. If your battery is low, charge the battery on a setting no higher than five amps for a few hours.

Is the 2003 Road King Classic still running?

2003 Road King Classic was running fine. Had someone stop over and let him take it for a spin. Stalled once and had to get it fired but easy no problem. Followed the guy back home 1/2 a mile he jumped on it once and going back and then in the garage turning it off. Next day tried to start it up and it would not.

Why is my Harley Davidson Road King not starting?

If you have a Tachometer, disconnect it. A bad tach can interrupt proper coil function. i have problem error code U1301 in Harley Davidson Road King 2009 and test everything not starts . I have a 92 FXRSP, I recently replaced my switches and I had a new battery.

What kind of ohm test does a dual coil Harley Davidson do?

The second (B) being the ION sensor (anti knock thing I think), just leave it out of the test. If you have a dual coil you will have 2 more (C & D) terminals. Test each of these (C & D) to terminal (A) for the primary side ohm test.

Where is the spark plug on a Harley Davidson ignition coil?

The primary is the area on the Harley Davidson ignition coil where the wires from the motorcycle’s harness are connected. The secondary of the coil is the area/towers where the spark plug wires plug in. There are two types of coils used on most Harley-Davidsons. Dual fire and single fire. Dual fire coils send spark to both cylinders, all the time.

How does a single fire coil work on a Harley Davidson?

Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time. Harley Davidson Ignition Coils are known to fail. The longevity you get from your coil may depend on usage, demand on the coil or environmental conditions.

What should the ohms resistance be on a Harley Davidson ignition coil?

The specified ohms resistance for the primary of a 2000 carbureted Softail will not be the same as the primary of a 2005 Ultra. Therefore, it is important to use the correct electrical manual for your ride. When testing your Harley Davidson ignition coil you will be testing ohms resistance.

Can a Sportster have spark and still not start?

Not sure how you can have, both, spark & fuel and still no start. You absolutely have to be missing one of them. You need to go back and verify that the Sportster not getting spark. Are you getting fuel to your float bowl? If so, is the float height correct? Confirm that your needle valve is not hanging up. Verify that your gas cap is vented.

Why does my Harley Davidson bike not start?

If the engine doesn’t crank, it could be because of a failure at any of those stages, a weak battery, or a bad starter. If the motor cranks and still won’t start, then it is likely a fuel or spark issue. A few tests can be performed to quickly track down the problem.

Why is my Harley Davidson Sportster not charging?

If a new battery fixes your problem, confirm the charging system is working properly by performing the same test with the engine running. A normal reading is near 14 volts. If you find a different value, move to Step 6. Even if your battery’s charge level is normal, it may not have the capacity under load to supply enough amperage.

Why is my Harley Davidson Sportster not starting?

Place your Sportster in second or third gear for the best results. A battery that can’t start your engine may no longer be recharging properly because of its age and current state of charge. The ground cables that connect the battery to your Sportster frame must also be undamaged and free of corrosion.

What should the Run switch read on a Harley Davidson Sportster?

Remove the kill switch from the right handlebar grip. Measure the resistance/continuity of the switch with the switch unpressed using the same method described for testing the run switch. The reading should be 0.1 ohms or less. Press the switch and measure again. The reading should now be “OL” or infinite, meaning no connection is present.

Where is the starter on a Harley Davidson 883 Sportster?

Connect your red probe to the solenoid positive wire. This is a fat 12 or 14 gauge wire on the cylindrical portion of the starter. Connect the black probe to a known good ground. 12v should be present in this wire at all times. Figure 3. The starter location on a 883 Sportster.

What does it mean if your Harley is not starting?

Harley Wobble – Read More 2. Harley Not Starting – Read More 3. Harley Started to Misfire – Read More 4. Oil Dripping from Harley Air […] […] Harley Wobble – Read More 2. Harley Not Starting – Read More 3. Harley Started to Misfire – Read More 4.

What to do if your Harley Davidson is not starting?

If you only have spark on the front cylinder, swap plug wires (front to rear, rear to front ). Now see if you (only) have spark on the rear cylinder. If you do not have power to the coil; Use a small jumper wire and power your coil directly from the battery. This will will bypass your harness and switches.

What causes a Harley Davidson to not turn over?

If the bike does not turn over, the issue can be battery, starter, starter relay. If turns over, but no start, determine if the issue is electrical or fuel related. Check for spark.

Why does my Harley Davidson engine not start?

If you see that the engine cranks up normally but does not start, this might be caused by either no fuel, no spark, or no compression. To check whether or not it is caused by no spark, use the following method.

Why does my ignition coil on my Harley not fire?

The main reason that causes the ignition coil to not fire is that when anything hinders coil voltage from the channel to the electrode gap at the end of the spark plug. This can involve damaged, worn out, poor quality spark plug or a cracked distributor. How do you replace an ignition coil?

What to do if there is no spark at the end of the spark plug?

If no spark is present at the end of the spark plug wire, the air/fuel mixture cannot ignite. Remove your spark plug wires from the spark plugs. Insert a spark tester into the wire and attach the tester to ground. Remove the fuel pump fuse. Refer to the article Fuse Box Information for fuse locations.

Why are my spark plugs not working on my motorcycle?

Spark plugs may not create a spark when the ceramic case is cracked, the electrode tip is broken, or the electrode is worn. If the engine has been running poorly for some time, the plugs may be covered in soot or fuel. To check, clean, and replace the spark plugs, refer to the article How to Replace Spark Plugs and Plug Wires.

Why is my spark plug not working on my Harley Davidson?

A spark tester. Spark plugs may not create a spark when the ceramic case is cracked, the electrode tip is broken, or the electrode is worn. If the engine has been running poorly for some time, the plugs may be covered in soot or fuel.

What causes a motorcycle to have no spark?

If it is determined that your motorcycle has no spark; do not just assume that the problem is your coil. There may be an underlying issue. You may have a dead short effecting voltage delivery to your coil. You may have a bad sensor, ECM or TSSM.

Can a spark plug make a motor run poorly?

Spark plugs with the gap set too small on them can make the motor run poorly. If you have no spark and your trigger tests ok, your stator tests ok and you have tried a new set of coils then we’re possibly looking at a bad CDI box. There is no real good way to test the CDI other than swapping the box out with a known good CDI box.

Where does the power go on an EFI sled?

The other 2 yellow wires in the 4-prong connector sends the power to the lights/hand warmers/tachometer. When you unplug this 4-prong connector (3 prong on the 1998-1999 500/600 EFi sleds) you are bypassing all of your switches (Throttle Safety Switch, Kill, Tether ect..) and all of your lights, hand warmers ect..in your handlebars.

What to do if your motorcycle won’t start?

It appears the turn signal and stalls or cranks but will not start. Try removing the ecm and security fuses, wait ten minutes and reinstall the fuses. This “reboots” the turn signal module and the motorcycle will then start from that point on. The historic codes will remain for 50 starts or until cleared.

Why is the spark plug on my motorcycle not working?

If your timing is off and the spark gets to the end of the spark plug a little too late then the exhaust valve in your cylinder head will have started to open, and the spark plug finally sparks.

Why is one cylinder on a Harley Davidson not firing?

IMO you are correct, by swapping the primary side wires you effectively “switched coils” and the side not firing is now firing so one would conclude the coil (both) are good. aside from making sure wiring is intact I would next start thinking the ignition pickup was bad.

Are there any street legal Mini Chopper bikes?

Street Legal Mini Chopper 49cc, 50cc, 250cc, 125cc. Free Shipping USA & Canada – Belmonte Bikes

What kind of spark plug does a Harley Davidson use?

NGK and Autolite among others have always been a preferred performance plug for Harley motorcycles. In addition it is often more convenient to use aftermarket spark plugs aside from the enhanced performance. All sparkplugs listed meet or exceed manufacturer specifications.

How can you tell if a Harley Davidson ignition coil is bad?

Harleys’ that run on a single-coil engine will make cranking sound, but there will be no spark from the cylinders. If your bike stalls while working, this is another sign that indicates there’s something wrong with the ignition coil. When some irregular sparks are sent to plugs from the coil, the issue occurs.

How does the spark plug work on a Harley Davidson?

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.

If you can start the bike this way; the start switch is probably bad, or a wire may be damaged. Let us know what you find. Sounds like you know what you are doing. You are not going to believe this – but – it was the battery in the key fob. The bike has to have a signal from the key fob before it will allow the bike to start.

Why does my 1999 Road King not start?

I haveA 1999 road king have not rode it in about three years ,gas tank had treatment ,has been started and ran fine however tried to start, will start with choke on. Sprayed carburetor with carb cleaner still starts only on choke ,goes off when choke is taken off. I appreciate the post for valuable information.

What do you need to know about spark plugs?

Unplug your right side switches from the main harness. With a jumper lead, put 12 volts to the black (or black w/red tracer) wire and see what your results are. Also, find your starter relay. Make sure that the red wire (#30 in the relay plug) is correctly powered when ignition switch is on. Make sure that the black wire #85 has a good ground.

What causes a Harley Davidson to not start?

Open up the nose cone end and see if it is just really dirty in there which can happen if the seal is leaking oil. If not, check that the signal wires from the ignition wire to the coil are not corroded at the coil, or damaged where they come out of the nose cone.

Why is my starter not working on my Harley?

That black wire with the red tracer should be sending 12v to the starter relay. Be sure that this wire is not damaged or pinched anywhere in its travel. This will be more common when wires have been routed through the bars, or switch housings/switches have been changed. Don’t forget to use your multimeter inside the switch housings too.

Where does the spark go on a dual fire coil?

Dual fire coils send spark to both cylinders, all the time. Regardless of which cylinder is on the compression stroke. Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time.

How to test no spark on Harley Davidson?

Test each of these (C & D) to terminal (A) for the primary side ohm test. You can also do a volt test to the first (A) terminal by testing the voltage on it after the key is turned on for 2 seconds. It should read 12 volts to grd. If it doesn’t then you have to go deeper into the codes thrown.

Can you use Iridium plugs on a Harley?

Iridium plugs should only be used with electronic ignitions. Visit CV Performance for Harley NGK, Champion, and Autolite spark plugs . Enjoy the Ride!

What kind of spark plug does a Sportster have?

Harley Spark Plug Cross-Reference Harley Spark Plug Cross-Reference XL Sportster 1000 XL Sportster 900 Shovelhead 1975-1981 Panhead/Shovel 1947-1974 Screamin’ Eagle 2413 EVS13S SH12S ACCEL – – 2410A – AC Delco 42F/42-6FS 42F/42-6FS 44NS/44XLS – Autolite 4123 4265 –

How to eliminate spark problem from fuel problem?

Easy way to eliminate spark problem from fuel problem is to remove air filter and squirt some gas in intake while spinning starter. If it fires, you know it’s a fuel problem, not spark. Click to expand… Hello Breeze and thank you for educating me a bit more….

Where are the spark plugs on a Harley Davidson?

One on the back of the coil. and also the plug that goes to my fuel pump. ” A bit of confusion, are you using the word “plug” differently? Spark plugs, or connectors? If you have the Sparkplugs out, and grounded to the head, you will not see spark. The ECM must see compression for spark to occur.

How to check your Harley Davidson 10, 000 mile service?

Harley Davidson 10,000 Mile Service Checklist 1 Monthly Visual Inspection 2 Clean the Terminals 3 Look for Loose Connectors 4 Check for Leaks

How to check spark plugs on Harley Davidson Sportster?

Insert a spark tester into the wire and attach the tester to ground. Remove the fuel pump fuse. Refer to the article Fuse Box Information for fuse locations. Crank the engine and watch for spark. If spark is consistently present, the problem most likely lies with the spark plugs and you should continue to Step 2.

Why is my Harley Davidson Sportster not igniting?

One of the most common sources of electrical problems is the battery. Test the battery’s state of charge and current capacity by reading Step 2 of the article Electrical Diagnostic Guide. If no spark is present at the end of the spark plug wire, the air/fuel mixture cannot ignite.

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.

How to get the trouble code on a Harley Davidson Sportster?

If a module has a “Y” next to it, a trouble code is present. Press and hold the odometer button for five seconds and the trouble code will be displayed. Record the code for later. Figure 1. The trip button on 2014 and newer Sportsters.

How does a wasted spark system work in an engine?

The wasted spark system is an ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke. The extra spark during the exhaust stroke has no effect and is thus “wasted”.

What happens to the extra spark during the exhaust stroke?

The extra spark during the exhaust stroke has no effect and is thus “wasted”. This design halves the number of components necessary in a typical ignition system, while the extra spark, against much reduced dielectric resistance, barely impacts the lifespan of modern ignition components.

How does a Citroen 2CV wasted spark system work?

Ignition system of a flat-twin Citroën 2CV. The wasted spark system is an ignition system used in some four-stroke cycle internal combustion engines. In a wasted spark system, the spark plugs fire in pairs, with one plug in a cylinder on its compression stroke and the other plug in a cylinder on its exhaust stroke.

Where is the ignition coil on a Harley Davidson?

Are there any mechanical errors on a motorcycle?

Even common motorcycle mechanical errors like faulty spark plugs, alternator failures, or a worn clutch can sometimes leave you scratching your head.

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