Question about Harley Davidson Harley-Davidson Motorcycle Desktop Telephone

1 Answer

Riding down the freeway on my 1985 FXR, it was 115 degrees, bike stopped running. Have gas, don't have spark at plugs. New coil. New battery. New wires.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 216 Answers

Lotta possibilities....likely something vibrated loose. i'd start with something simple. after u check electrical connections and fuses,,,,, is the ignition module black lead secured to the frame ? all coil wires secure ? Pull the key ignition....check connections/ crossed? secure ?

Posted on Aug 17, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Issue with Harley regarding cam bearing - 2000 Road King Classic


our bike is out of warranty by 8 years.....should i ask for warranty on my 1987 FXR? or should i just man up!

Sep 29, 2009 | Harley Davidson KNG America 026711...

5 Answers

Plugs Fowling 79 shovel


Install a Dyna, or equivalent, electronic ignition.

Jun 07, 2009 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

1999 Fatboy backfiring & no spark


The guy with the same problem..Your leaving your enrichner (choke) out thats where the 2000rpm and soot comes from...Original fellow I think you may have an intake leak around your manifold or carb.

Apr 21, 2009 | Harley Davidson Harley-Davidson Motorcycle...

2 Answers

1991 harley FXR won't start; replaced bad starter. it still won't start


- If the starter is turning the motor , I dont understand why u replaced the relay and the ignition....but - thats water under the bridge now .... Open the primary and check the jack shaft... put a pliers on it - pull it out and turn it 1/4 turn a few times - make sure its not binding. Take a look at the bushing on the outer primary.... may need to bevel the edges a little. Make sure the battery is charged enough to give the engine a few strong turns. Let me know what you find

Oct 21, 2008 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

Wiring harness 1974 sportster???


I am assuming your bike is stock, or close to it. In 1974, all h-d's used a battery coil ignition with wasted spark. Battery positive flows from the ignition switch to the coil, through the coil primary winding to the points, then open or shorted to negative (through the chassis) depending on the points being open or closed. When the engine is turning over, this is what happens: The small cam that operates the points has the points in the closed position, so battery current is flowing through the coil primary, through the closed points to negative. This causes the primary winding inside the coil to set up a magnetic field. When the cam starts to open the points, the current tries to bridge the gap. If we let this happen, the big arc between the point surfaces would burn up in a hurry, and the plugs would not fire for the following reason: The ignition coil is a transformer. It has a primary and secondary winding.The secondary winding has many more turns of wire than the primary. When the secondary winding "cuts" magnetic lines of force a larger voltage is induced in the secondary. In the case on your sporty, we are boosting 12 volts to over 10,000 volts. This depends on 2 things: The number of lines of force and the speed they are cut. So, when the points just start to open, the condenser absorbes the current until the points are open enough to prevent arcing. Then the current flow through the primary winding stops. The magnetic field quickly collapses, cutting through the secondary windings that are connected to the spark plugs. The resulting high voltage (pressure) Jumps the gap on both plugs and lights the fire. One of the cylinders is on the exhaust stroke so that spark is wasted. So: ignition on : 12v at coil positive. With points closed, 0 volts at coil negative. If you read voltage here, the points are dirty or open or the wire from the coil to the points is open. Points open: 12 volts at coil negative. To check for spark, you don't have to crank the engine. Just manually opening the points should fire the plugs. After you get the plugs firing, post again and I will tell you how to razor tune this thing. It should start instantly with a perfect idle. Hope this is clear.

Oct 14, 2008 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

2001 ultra classic motor miss


Electrical problems and **** in the gas tank can cause misfires. It sounds more electrical in your case. But draining and flushing the gas tank is a cheap fix. Could also be a coil or spark plug problem. Check for a faulty, fouled or cracked plug, check for a good spark, check the coil for carbon tracking. Check the plug wire connections too and the wires.

Oct 03, 2008 | Harley Davidson Harley-Davidson Motorcycle...

2 Answers

No rear spark, put on new coil, new plug wires and new crank position sensor, still only running on front cylinder.


I had almost the same thing happen on my 03 sportster it was the ignition modual dont know what year yours is but 03s are bad about messing up harley said they fixed the problem on the replacements

Sep 01, 2008 | Harley Davidson Harley-Davidson Motorcycle...

1 Answer

Bike won't start


Start by narrowing it down to fire or fuel problem. Pull a sparkplug, ground it to the head, and crank the engine. If there is no spark, then test the plug wires, coil, then ignition module in order down the line until you find where the power stops. If you have spark, then check the petcock to carb for fuel. If there is no fuel from the petcock, then it will be the petcock filter or the petcock is bad. If you do have fuel to the carb, but no to the cylinders, then the carb may need to be cleaned and/or rebuilt. Try these and let me know.

Aug 19, 2008 | Harley Davidson Harley-Davidson Motorcycle...

2 Answers

88 inch motor will not run properly.


Is the front cylinder firing? put a spark tester on it or pull the plug and ground it to the motor head or something and roll it over and see if it fires. If not then chances are the ignition is bad.

May 30, 2008 | Harley Davidson Harley-Davidson Motorcycle...

Not finding what you are looking for?
Phones Logo

Related Topics:

182 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Phones Experts

kakima

Level 3 Expert

96467 Answers

Brian Mathews

Level 1 Expert

20 Answers

Brudog1

Level 1 Expert

35 Answers

Are you a Harley Davidson Phone Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...