Question about Harley Davidson XL Sportster 883 Motorcycles
There is power to the coil but no spark to plugs
Posted by Anonymous on
Hi Anonymous, the CKP sensor needs compression to send correct signal to the ICM/ECM, make sure both spark plugs are in heads and use a grounded third plug to check for spark or hold spark plug cable close to spark plug in head. If still not getting spark the usual suspects are:
1. Fouled spark plugs.
2. Battery voltage below 8.7 volts, loose or broken battery cables especially ground cable to frame.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, MAP or BAS sensor.
7. Faulty ignition switch.
Posted on May 21, 2015
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Disconnect the small wires on either side of the spark plug wire tower. Then, turn the switch on and check the wires for voltage. If you don't have any voltage, check the "Run/Stop" switch. The voltage for the "Run/Stop" switch comes straight from the "ignition" circuit breaker under the seat. The voltage to the circuit breaker comes directly from the ignition switch. The voltage for the ignition switch comes directly from the battery.
If you have voltage to the coil but still no spark, it sounds like your timer/pickup is bad on your engine. It is located under the small round plate on the right side of your engine camchest cover.
Posted on Jan 10, 2010
If your handy working on stuff you can find the problem. You need a test light and a volt OHM meter, and basic understanding on how to use both or collect a friend that knows some and you'all can figure it out together. First you need to remove the seat and the gas tank so you can get to the wiring and the battery. Realize that if the battery is low the engine cranking might be that the voltage is too low to let the inghtion come on. First check the battery as it should be 12.6 volts for a charged battery, if the battery is lower than 12 volts as it's cranking it could be below 9 volts and it won't spark, as the voltage is too low. If the voltage is low then you could jump start the bike with your car and with the car running the voltage will be even higher ( 14.5 volts ) and the bike should crank and spark if it's OK and if the plugs are in and thier not too wet from cranking it with the spark off, it'll fire up and run. If this doesn't happen. and theirs still no spark then your looking for real problems. Remember if you try something I tell you and you find something you need to ask me about all you have to do is add a comment and I'll be contacted by email that you need my help and I'll reply with a continued answer to your problem. I answer these problems cause I like to and helping you keeps me thinking and improving the answers I give so I want to help you till your running, and running right. Batteries go down as they sit and their still good but need to be charged up. It's wisest to charge the battery with a battery charger as charging the battery by running the engine puts undue strain on the charging system and could possibly wreak the charging system. I put a new battery in my bike every year as it's cheap insurance against charging and ingation system problems. Your battery as new as it is may only need to be charged or the warrentee may replace it. Lets say this is'nt the problem and with good voltage you still don't have aspark. You need both plug wires connected to a plug or the head or the spark will feed back the coil and possibly blown the ingition module. Bike bandit shows a picture of it but they don't have it for resale. You need to check the power wire to the coil to see if it's hot with the key on. anytime the key is on. the coil can be shorted but it's not likly as it ran the last time you ran it and they usally fail as it's running. ( overheat) If the wire is'nt the same as battery voltage ( measure with the voltmeter) then the wire is bad or the ingtion switch is bad or dirty or a blown fuse. If in doubt check all the fuses ( with the test light) a fuse can look good and be bad. they can look bad and they usally are. If you don't have a volt meter and you want to ride an old Harley you'll need a test light and volt mater and even the ones you get at a discount store are good enough to find the lack of power. any 12 volt ligh that lights as connected to the battery will work it's just the ones you can but at the store are so much easier to use. if you find something and need to ask somemore just ask buy adding a comment and i'll come back and help you somemore. John
Posted on Mar 27, 2011
SOURCE: 98 sportster crank no start
Check the fuse for the ignition circuit . It should be either under the seat ro behind the triangular plate on the left side of the bike. If the fuse is good, check the "Run / Stop" switch. The power for the ignition coil comes straight from this switch. Disconnect the pink wire from the coil and check for battery voltage on the whtie/black wire.
Posted on Apr 18, 2011
Tips for a great answer:
Dec 04, 2014 | 2002 Mitsubishi Galant
Mar 29, 2014 | 1986 Chevrolet Celebrity
Feb 24, 2013 | Motorcycles
Mar 18, 2011 | Yamaha FJ 1100 Motorcycles
Dec 03, 2010 | 1997 Honda CB 500 S
Nov 12, 2010 | 1995 Dodge Dakota
May 20, 2010 | 1992 Pontiac Bonneville
Feb 24, 2010 | 1984 Ford F 250
Jan 29, 2009 | 2001 Honda XR 400R
274 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: