What would you like to do?

How do you test a motorcycle coil that has two leads and is not externially grounded?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

Basic coil tests are for Primary and Secondary ohms (resistance) values and I.B. or an Insulation Break meaning you have a short.

Refer to your owners manual for what type of coil you have. Different models have different ohms ranges.

This test would be for a typical 3-5 ohms single lead externally grounded coil. You can usually identify an Externally grounded coil as they are grounded by the mounting fixture itself.

TOOL REQUIRED - VOLTMETER that will read ohm values
2. If the coil is in the bike disconnect wires from the two terminals to isolate it.
3. Once you set your Voltmeter scale to ohms connect the red and black leads to each terminal. You should read between 3 and 5 ohms if that is the spec for your bike. You have now tested the primary circuit of your coil. If you read Infinity ohms replace the coil, you have an open circuit or break in your coil winding.
4.Now take your black lead off one terminal and connect it to good ground, battery negative cable or non-painted frame bolt. Your meter should now read 0 or OFL (off line). If you do get a reading here your coil has a break in the insulation and is shorting out. Your only option here is to replace the coil.
5. Repeat step 4. for the other secondary terminal. Red on terminal, black to ground. It should also read OFL.

Another quick test option regardless of type of coil is to check Volts going to the coil with battery connected. If you have a 12vdc system and you are getting close to 12vdc at the coil terminal and nothing is coming out of the coil you either have a bad coil or connection.
10 people found this useful
Thanks for the feedback!

How do you test a moped coil?

  In order to test a moped coil you need to use an ohmmeter. First you test the primary coil by touching the leads (2 wires with points on the ends that come off the ohmme

How do you test an alternator on motorcycle?

put a voltmeter on the battery and test voltage, then start the cycle and check again. A battery at rest should be at about 13 volts, with the engine running it will be at 1

How do you test condenser on motorcycle?

An easy way to test them is to connect the pig tail to the positive terminal of a 12 volt battery and the body to the negative terminal. This charges them up. Now ground the p

How do you test pickup coil on a ATV?

A pickup coil for an ATV may be tested by measuring the resistance across the coil's electrical leads and comparing this value against the expected range specified in the ATV'

How do you test an ignition coil?

How to test an ignition coil This testing procedure is valid for just about any automotive coil. Using an ohmmeter, check the resistance between the side terminals of the coi

How do you check your ground connection on a motorcycle?

  Check your connection at the battery and where it bolts to the frame. Make sure they do not have corrosion or paint stopping a metal to metal connection. If all is good,

Can there be two motorcycle clubs with the same?

The Vagabonds MC are in Australia, Belguim and were in Canada. None of these 3 are affiliated and all wear different patches. The Vagabonds in Australia travelled to Canada be

How do you test a capacitor only by using a multimeter and two leads?

You can test a capacitor using a multimeter and two leads by placing the multimeter in ohms mode. It works best with a needle type meter, not a digital meter. Connect the lead

What is on motorcycle license test?

Typically you will have a riding test and a written test. Depending on the state, the riding test will likely include stopping, cornering, swerving, and tight turns. The writt

How do you test a pickup coil?

Answer   without more information regarding make, model and engine we are working on, it will be impossible to answer this question specifically, however, there is a gene