Wiring diagram 1987 Harley Davidson FLHS

SOURCE: I have a 2005 Harley Davidson engine in a custom

I would check the coil first and see if it needs replaced .If it's new and you still have reciept ,take and get a replacement coil for the one you bought and make sure your wires coming out of everything have power be tracing the system to see if there might be something shorting.

SOURCE: Where can I find a wiring diagram (online) for a HD Dyna Ignition

Need more info but try this:http://www.dynaonline.com/skins/downloads/instruct/DP4000-HD2.pdf

SOURCE: 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.

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http://www.compufire.com/harley-main.html
http://www.dynaonline.com/skins/harley_davidson_category.aspx

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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 [email protected] .

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

SOURCE: i need the ignition wiring

I have a wiring diagram but I can't get it to you via this forum. You'll have to contact me directly off forum at [email protected] . Does your bike have two or four spark plugs? I'll send you a scanned copy, not the best in the world but it's a schematic. Make sure you tell me what you need as I get request from everywhere.

Steve

Strech

• 1562 Answers
• Posted on Apr 04, 2013

SOURCE: how to replace a speedometer cable on a 1989 FLHS

Underneath the speedometer head is a knurled nut.It SHOULD unscrew by hand, but after 24 years, you may need a pair of pliers.At the other end of the cable is a nut, unscrew with a wrench.
When installing new cable, start at lower end.
You'll probably need to turn inner cable by hand to line up end of cable with receptacle in drive unit, then tighten nut.


At top end, install into speedo head unit, and tighten knurled nut.


You might want to grease cable before installation.
Inner cable should pull out of outer sheath housing from the top.
Grease all of inner cable EXCEPT for top (where it goes into speedo head) 6", so grease doesn't get into speedo head and gum up the works!