No Spark 2001-2006 Harley FL Twin Cam 88 Wiring diagram
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- Опубліковано 5 жов 2024
- You asked and here it is. Figuring out a no spark issue on a 2001-2006 Twin Cam FL. Please like and subscribe. The link for the wiring diagram is below.
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This video made my day. Thank you for sharing knowledge.
@@travj4450 I’m glad I could help. Thank you for watching and if you haven’t, please subscribe.
Good video. Getting me started to troubleshoot.
One thing to add. It would be nice to have those drawings next to the bike and when you speak of various elect blocks, point out where they’re at on the bike.
And yeh, I’m weak when it comes to electrical. 😑
@@dougfresh1341 you’re not wrong but I just don’t want to take my bike apart to do that. If mine was broke down I’d definitely make a video showing that. Maybe one day after I retire. Thanks for watching and if you get really hung up you can reach out to me at hdrap_1999@yahoo.com
This remind me something of a couple of years ago that came to me...I don't know if I know I mentioned this before .. i may to someone else that is has a UA-cam channel. a friend of mine has a 2007 Softail and it had been in a fire we resurrected the bike. it looked really bad but the wiring harness except for in front of the gas tank was pretty good shape . the ECM was pretty good shape. so we set about cleaning and then painting the tins and we got it running and it ran good for 2 years. then one day the crank position sensor well that was the code so we changed that and it was fine, it wouldn't take throttle it would idle but no it wouldn't go any faster. then 2 weeks later it wouldn't take throttle again , this time it said it was the map sensor error and throttle position sensor error so we change those now we used aftermarket there. I did a lot of continuity tests made sure the wiring was good from the computer to the sensors make sure it was getting voltage and it was make sure the signal was going back and as best as I could using my vomit voltage was going back smaller amount he then took it to two shops. over a period of time each one said they couldn't figure it out but they would work on it on the in the winter time. the one shop did replace the map sensor with a Harley one but still no change. and they asked if he'd maybe want to buy another bike. he brought it home. I ended up changing the wiring harness with a used wiring harness. I also change the computer to another used computer I married the computer to the bike I think it took two times or it didn't take the first but I did get it to work. but again it was it would run but it wouldn't take throttle I clean the injectors.. coming from older style like shovelheads and Evo bike I was a little out of my element but I knew electrical stuff. at least I can wire a home. and I used to work on tube radios years ago and televisions. so in the end because wanted to work on it except in the winter. I switched it over to a carburetor put a thunderheart ignition and that ignition knows where the motors at through the crank position sensor and runs great but it's still bothers me that I couldn't figure it out and I know I can't figure everything out but that's my story it was just kind of an odd thing. well thanks for reading..✌️
And I read about as much as I can find out about the 07 Softail deluxe I think that's what it was apparently there was some kind of wiring problem but nobody ever had a or I never found solution anywhere I read...
That would be a hard problem to solve for anyone! Sounds like you took the same steps I would take. Thank you for sharing.
Wouldn't it make sense to just check power at the coil? Instead of going through all the tracing, Because it seems like getting power to the coil is the most important. Thank you for sharing your experience and knowledge. You are much appreciated.
This video was made for someone who asked a specific question. They had already told me they had power to the coil. Otherwise you are correct. You would normally start with power to the coil. Good eye and thank you for watching.
Amazingly talented but humble with it - respect where it's due 👌
Thank you for the kind comment and for watching.
Great video Thanks. I have no spark but only on the front cylinder changed plugs and lead so far, DTC P352/P1353
Thank you. If you need further help please email me at hdrap_1999@yahoo.com
Please don’t forget to subscribe.
Wow very thorough, this guy sounds like he has a degree in electronics or something, love the vids
Thank you!!
My bike is a 03 carburetor and loosing fire at the coil . I can ride a half hour a it dies. Let it sit 10 or 15 minutes and it’ll start up and go until it does it again. I’ve checked the coil . It’s good .
@@tchogworks1987 that sounds like a bad crank position sensor. The other check you can try is as soon as it dies spray it with some starting fluid to verify that it’s not a fuel issue so you don’t waste money and time.
Hi, I ran 12 volts positive to A on my coil and then ran a wire from C touch ground with it and released several times but no spark on spark plug. Only sparks are when I ground the wire running from C. (I’m trying to test this coil as you explained)
Have you checked the resistance of the secondary? You can have a good primary on the coil and a bad secondary.
@@Rapsgarage I’m going to check it tomorrow I’m getting a multimeter from the harbor freight
Trouble shooting Single Fire Coil ignition system Harley Davidson Dyantek
ua-cam.com/video/8KEuAPyecsk/v-deo.html
Harley Ignition Coil, Points, electronic, Plugs and Plug Wire troubleshooting the system
ua-cam.com/video/IBok3aml3QM/v-deo.html
Check out both these videos. This should help. If you need more help let me know
Hi Rap's I own a 98 1200 sporster and pretty sure that I have the same problem that you're describing here in this video,she cranks and dies in a few, everything is good but the bike not maintained sparks and I'm pretty sure that my ECU under my seat is faulty ,some time I got sparks and some times not,stator new,coil module new,gas is ok rebuild carb good wires,hard sparks sometimes
I don’t believe you have a an ignition module under the seat. If you need further help email me your phone number at hdrap_1999@yahoo.com
@@Rapsgarage what I meant to say is the ECM
@@frankgarcia3018 I don't think your bike has an ECM. I downloaded the wiring diagrams and looked at them. If you need further help, let me know.
@@Rapsgarage I do she's running a screaming eagle one,I replaced all that was wrong with her,but the ECM,which I will soon
Yes this is the guy that wrote you that about that road king I have replaced everything on this bike EMC crank sensor coil everything works on this bike but I don't have any juice going through the fuse for the fuel pump and there's no spark other than that everything works write down to the burglar alarm please help me I'm out of answers
Email me your phone number at hdrap_1999@yahoo.com. It’s easier over the phone.
awesome video. stumbled upon it trying to diagnose my 2006 FLHXI. i was having the same issues, and have 12v at the system relay, but 0 volts at the coil. am i right to assume that theres a broke or grounded wire from the system fuse to the coil? also have continuity from the power pin A and ground. any advice would be greatly appreciated.
Sounds like you have a bad relay. Can you hear the fuel pump cycle? Don’t forget the relay has 12v power on the contacts and 12 v power on the relay coil to fire it when you put the key switch on and the run switch on. I can help you over the phone if you’re interested. Email me your phone number at hdrap_1999@yahoo.com
Thanks for the info
Glad it helped. If you haven’t, please like and subscribe.
2009 street glide….no constant 12v to A….it gets 12v while the fuel pump is running….is that normal…
Sorry it took me a few days to get back to you. The computer tells the "System Relay" to turn on/off. The system relay is what supplies power to the coil and fuel pump. I'm not positive but I think that whay=t your saying is correct. As you crank the bike it should supply 12vdc to both and it should stay there until the bike is turned off. I think the reason they do it this way is because if your in an accident you want the bike to turn off and you want the fuel pump to turn off. That way if your bike is on it's side you don't pump 5 gals. of fuel all over the ground. If your saying that when your bike is running and for no reason it shuts off because you loose that power then I'd start checking power at the System Relay and go from there. See the attached link for the wiring diagram for your bike. Please let me know if I can help further. Thank you for watching.
serviceinfo.harley-davidson.com/sip/service/document/5536?baseUrl=%2Fservice%2Fdocument%2F5536#152c4f46-d9df-47b1-bf3d-3fb75f08410c!!1!6
BTW how your bike is wired is different then what's in this video.
Hey man , I’ve got a question for you. My 03 Dyna does not want to get spark and I have replaced the ignition, coil, spark plugs, voltage regulator, and crankshaft sensor. It just wants to crank and crank but won’t turn over. Maybe you have some idea of what it could be ? It’s getting plenty of fuel as well
Is it carbureted or fuel injection? Also, Harley offers the wiring diagram online for free go to Google put in your year bike and put in wiring diagram. I would check to make sure it has 12 V power coil. I would then start checking that you have 12 V power at the module for the spark. If it’s fuel injection, that would be the ECM. If you have further trouble, you can send me your phone number and I can help you over the phone. My email address is. hdrap_1999@yahoo.com
Check all of your fuses
@@Rapsgarage okay sweet thank you very much I really appreciate it. I will test that out tomorrow and get back to you
Are you saying to check the voltage on the ignition module itself ?
Yes, there should be constant power plus a switch power then check the 12 V on the coil also and then check the grounds on the ignition module.
07 flhx my rear jug isn't firing thought was the coil so replaced that still same problem, front jug is firing so is the ecm not sending the ground signal tothe back coil to fire forbthe back jug?
How did you verify the rear isn't firing? If that's true id put a volt meter on the wire for the rear cylinder at the coil and see it it's pulsing from 12vdc then to ground. If it's not I'd check the wire coming the computer to the coil and verify it's good and not broken. The other test I'd do is connect a ground wire to the rear coil post and removing it the see if you have spark. This checks the coil you have. Just because it's new doesn't mean it's good. If you need further help please email me your phone number to hdrap_1999@yahoo.com and I can call you to walk you through it. Check out me video on how a coil works. This will help you a great deal.
Harley Ignition Coil, Points, electronic, Plugs and Plug Wire troubleshooting the system
ua-cam.com/video/IBok3aml3QM/v-deo.html
Also check out this video too.
Trouble shooting Single Fire Coil ignition system
ua-cam.com/video/8KEuAPyecsk/v-deo.html
Thank you
Hello, I have a 80 shovel head. No spark, new coil, wires only getting 7 .7 volts to the coil. Any ideas
That’s not enough voltage to the coil. Check your battery first then I’d check your main on/off switch. Check to see if you have a good 12 V to the switch and then see if you have 12 V coming out of the switch. If it’s not there then I start checking the wiring to see if you have a bad wiring connection.
You can always email me your phone number to hdrap_1999@yahoo.com and I can call you and help you over the phone
So what if you have 12 vpower to A for a few seconds then drops to mv and fluctuates as you crank starter
I think on fuel injection bikes it fires the fuel pump until the engine starts. That way if the bike falls over it shuts the engine off and the fuel pump off so it doesn’t pump gas all over the ground in the event the fuel line is broken. The coil has to have power in order for the bike to run.
Make sure if you’re using a digital voltmeter it’s not auto-scaling. If you need more help let me know.
It could also be a bad relay.
Replace ecm relay and crank sensor Heres something puzzling tap starter button 4-5 times rapidly then plugs start to fire. But if I just hit starter button once. No spark
I would put a voltmeter on the power to the coil and see what that is doing when you’re trying to start it. If you need additional help, email me your phone number to hdrap_1999@yahoo.com. I can help you further over the phone.
Please help me
Email me your phone number and I can call you. It’s much easier over the phone.
hdrap_1999@yahoo.com
New:
*battery
*crank sensor
*coil
*cleaned ignition switch
*new earth on battery
Checked fuel tap, gets fuel
Checked spark with spark tester, no spark
Checked main ignition circuit breaker, read 12v
Im stuck
Do you have 12 volts on the coil?
Watch this video. ua-cam.com/video/IBok3aml3QM/v-deo.html
@@Rapsgarage yepp. 12,7
@@Rapsgarage will do! Is there any way to see if its the ignition cables? To measure power when cranking on the coil
In my video, I show you how to check the plug wires. I would doubt that both of them went bad at the same time.