Question about Harley Davidson FXDBI Street Bob Motorcycles

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Wiring diagram for ignitionwith ultima product onbobber bike with 135ssmotor dual fire

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  • wd4ity
    wd4ity Oct 14, 2010

    What type of ignition system does the bike have? It is Crane, Dyna, or something else. Try visiting the website for the ignition manufacturer. Look for installation instructions for the wiring diagram for your particular model ignition system.



    Good Luck

    Steve

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wd4ity
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SOURCE: I need a Wiring diagram

Have you tried going to the manufacturer's website. Most of them have a website that has a "technical help" section and they offer free downloads of the installation instructions. In these installation instructions is a wiring diagram.

Good Luck
Steve

Posted on Jun 05, 2011

wd4ity
  • 4565 Answers

SOURCE: need wiring diagram 1975 harley

Go to this site and join this Yahoo Group. They can tell you where to get a schematic and help with almost any other information you might need. http://autos.groups.yahoo.com/group/Aermacchi/

Good Luck
Steve

Posted on Jun 12, 2011

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1 Answer

Kawasaki zx750j 1991 with no spark?


only one wire is 12v other is neg , coil fires when the neg is grounded not sure if your bike has pulse generator this sends signal for coil to ground at correct time look on you tube for coil test primary and secondary there are two dual fire coils on that bike

Oct 15, 2014 | kawasaki Z750 Motorcycles

1 Answer

I have a 1995 1200 sportster. just recently put a wide glide conversion kit on it. now i got a accel super coil part#140408 that has 2 negative post and 1 positive post. My factory wiring only has to wires...


You have the wrong coil for your bike. This coil is designed to be used with a "single fire" ignition system. If you have the stock ignition system on your bike, it is the original "dual fire" ignition. Harley has used a dual fire ignition system on all their bikes except a very few years ago. Try to exchange the coil for the correct one where you bought it.

Good Luck
steve

Jun 12, 2011 | Harley Davidson XL 1200 C Sportster Custom...

1 Answer

The spark plug is only firing on the rear cylinder, I have replaced both plugs, both plug wires, and coil. all parts came from HD dealership and all parts are OEM replacement parts and still only fires on...


Swap the spark plug wires and see it the moves from the front cylinder to the rear cylinder. Your Sportster should have what is known as a "dual fire" ignition system. This means that both spark plugs fire every time the piston comes to top dead center whether the cylinder is on the compression stroke or the exhaust stroke. This causes what is known as a "wasted spark", the spark plug fires on the exhaust stroke. I don't have any experience with bikes made after year model 2000. Most of these bikes are equipped with electronic engine controls that I don't care to learn about. I work on bikes made in 1999 or earlier. I feel pretty confident that Harley still uses the "dual fire" ignition but I'm not sure if they have any other sensors on the bike that would cause the problem you have. Try what I suggested and it may give you a clue as to the problem. Other than that, I have no other suggestions. Sorry I couldn't do more.

Good luck
Steve

Jun 11, 2011 | 2006 Harley Davidson XL 1200 C Sportster...

1 Answer

Need Wiring Diagram For Ultama single fire Ignition Part#53-645


You'll have to go to Ultima's website for this information. Try this page.
http://www.ultimaproducts.com/53-643_53-644.pdf

I have no experience with the Ultima ignition systems although I have used there stroker flywheel assemblies, pistons, and oil pumps. You may wish to read this. It's interesting.
ultima-engines-your-results-23.html">http://www.hdforums.com/forum/evo-classic-models/286951-ultima-engines-your-results-23.html

Good Luck
steve

Jun 10, 2011 | Harley Davidson Bullet Classic 500...

1 Answer

Need a spark plug wiring diagram for a 2000 europe harley soortster


Your spark plug wiring shouldn't make any difference as Harley uses a dual fire ignition system. The spark plugs both fire at the same time so it doesn't make any difference which wire goes to the front or back cylinder. This is correct unless someone has changed the ignition system on the bike. However, if you will contact me directly at wd4ity@bellsouth.net , I will scan a copy of a domestic schematic and send it to you. I do not have access to European wiring diagrams but they should be the same as far as the ignition circuit goes. Don't forget to remind me of what you need.

Good Luck
steve

Apr 03, 2011 | Harley Davidson XL 1200 S Sportster Sport...

1 Answer

I have a 1979 harley sportster and have switched it over to an electronic ignition module (Dyna S) dual fire. I have a drag specialties dual fire coil with two poles (for the wires coming from the...


The original wires, one blue and one white, were with the points ignition. The white wire should be the "Hot" wire. Now, look at your wiring diagram. The two white wires should go together to one side of the coil and the blue to the other. There is no positive or negative side of the coil, just two small primary winding terminals. Make sure the white wire from the ignition system is the "hot" or power wire for 12 volts. If you connect the ignition unit up backwards, it will damage it. To make sure the white wire on the bike is the hot wire, simply turn the ignition switch on and check this wire with a test light or volt meter. It should show battery voltage on it. That should be your setup, two white wires on one end of the coil and a blue wire on the other.

Good Luck
Steve

Nov 16, 2010 | 1979 Harley Davidson XLH 1000 Sportster

1 Answer

I need a wiring diagram for a electronic ignition module.


If I understand correctly, Your bike has points in it now and you want to go to electronic ignition. If that's what you want to do, I would suggest that you go with one of the aftermarket ignition units. They're more versatile, costs less, and easier to install.

There are two types available. Your bike has a mechanical timing advance unit behind the points breaker plate. One type of electronic unit eliminates this mechanical part and makes the system truly maintenance free while the other type retains the mechanical advance unit and cost less. A prime example is Crane Cam's HI-1 unit that retains the mechanical advance and their HI-4 unit that eliminates it. Most bikes made after 1984 do not have the mechanical advance units. Since your bike does not have any of the original components left on it, I would suggest that you get one of the units that goes in the "nose cone" of the engine. It simply replaces the everything in there if you get the unit that does not use the mechanical advance. The Mechanical advance units are prone to wear and since no one ever services them, I'd suggest getting rid of it. You'll have to purchase a "timing cup" from Harley, costs about $20, a lot less than $100 bucks for needle bearing mechanical advance unit. Get the shorter screw that goes with it as well.

All you have to have with either unit is a "hot" wire going to the coil. The coil must have a primary resistance of somewhere around 3-4 ohms where a points type coil has a primary resistance of 4-6 ohms. To determine the resistance of your coil use a Digital Volt Ohm Meter and measure the resistance between the two small terminals on the coil. To wire the ignition units is usually just a two or three wire hookup that is very simple. They all come with wiring instructions.

Now, the next thing is whether you wish to stick with "dual fire" ignition or go to "single fire" ignition. Dual fire is the system that almost all Harley's come equipped with from the factory. In this type of system, both spark plugs fire when the pistons are top dead center. Since one piston is on the exhaust stroke, that spark is of no consequence and therefore is considered a 'wasted spark". In a "single fire" system, the spark plugs fire independently when each piston comes to TDC on the compression stroke. It requires either two coils or a "two in one" type coil. This added coil increases the cost of the system and to be honest with you, I cannot tell a difference between the two systems. With that in mind, I opt to go with the less expensive and simplier "dual fire" system.

http://www.cranecams.com/?show=browseParts&lvl=2&prt=4
http://www.compufire.com/harley-main.html
http://www.dynaonline.com/skins/harley_davidson_category.aspx

Custom Chrome online catalog. http://www.customchrome.net//icatalog/full.aspx?Page=571

Ok, this will get you started. Installing an electronic ignition system in an older Harley is easy to do. The difficult part is deciding which one to go with. Once you do that, no problem. If you have anymore questions, drop me a line at wd4ity@bellsouth.net .

To see how to hook up one of the units, go to their website and look for a "Technical" page. Go to that page and look for "installation Instructions". Print them out and it'll tell you everything you need to know. If not, I've got some different types of systems installation instructions that I can scan and send to you.

Good Luck
Steve

Jul 04, 2010 | Harley Davidson FLHT Electra Glide...

1 Answer

I need a wiring diagram for a 2002 883 harley sportser


If you are going to install a new ignition unit, all you basically need to know is which wire is the "HOT" wire. Disconnect all the wires to the coil, turn the ignition switch on and use a test light to find the "power" wire. Once you know which wire this is, you'll need the wiring schematic for the particular type of ignition unit you're installing on your bike. Usually, if you got the website for the manufacturer, they'll have "installation instructions" under their "Technical" section. Usually, with a dual fire ignition system, there are only three wires to hook up. Good Luck!

Feb 22, 2010 | 2004 Harley Davidson XL 883 Sportster

2 Answers

I need wiring schematic


I bought a cbr 600 , but bike came with the wirers not connected. Rectafire, was also not connected? need diagram or help really badly!!!!

Jun 26, 2009 | 1994 Honda CBR 600 F(2)R

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