Question about Harley Davidson Harley-Davidson Motorcycle Desktop Telephone
There's no real way to check the coil, it either works or it doesn't. I've found that with my Harley's when I lose spark it's generally a bad wire or loose connection. If the wires/connections are good, then it's either the coil or the ignition module. I'd say with the newer Crane on it, that the problem is going to be with the coil. Check the voltage from the ignition module going into the coil. I'm not exact on the voltage, but as long as you have a good strong current getting to the coil, and low to nothing on the plug wire side, then the coil is bad.
Posted on Aug 06, 2008
Coils can be tested dynamically with an oscilloscope which you probably do not have so your next best approach is a ohm meter. not knowing your coil will make it hard to suggest a reading but you can get the spec's from the manufacturer or web site. the primary side could be from one ohm to 3 to 5 typically, could be more depending on coil. you can also check the ohms on the secondary by probing the primary terminal and a secondary (plug wire hole) terminal. here you should have a few thousand ohms depending on coil. if you get no readings, then the coil is bad. by the way, if you are checking voltage as pyrhyc says, you will have 12 volts on both sides of the coil. why? most ignitions will open the ground side of the coil to make it fire because as the current is pulled down, the magnetic field will colapse inducing electrical current in the secondary thus firing the plug. one redneck check is to take a 12 volt battery and hook one wire to one primary terminal and drag the other wire across the other terminal (bike wires removed for test) and watch plugs, if you get fire, check module.
Posted on Aug 27, 2008
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
Tips for a great answer:
Jan 31, 2016 | Motorcycles
Aug 25, 2014 | Harley Davidson Motorcycles
Aug 01, 2013 | Harley Davidson Motorcycles
Apr 16, 2013 | Cars & Trucks
Aug 27, 2012 | 2001 Harley Davidson XL 1200 C Sportster...
Jul 31, 2011 | 1993 Harley Davidson FXR Super Glide
Jun 12, 2011 | Harley Davidson XL 1200 C Sportster Custom...
Oct 14, 2010 | Harley Davidson FXDWG Dyna Wide Glide...
Jul 04, 2010 | Harley Davidson FLHT Electra Glide...
Oct 08, 2009 | Harley Davidson FXR Super Glide...
Nov 23, 2013 | Harley Davidson Harley-Davidson Motorcycle...
351 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: