Ignition Coil Resistance Chart: (How To Test) 2023
The ignition coil isn’t working well, and you want to replace it, but you have no idea about the Ignition Coil Resistance, right?
No need to panic; it’s the right blog post for you!
In general, the ignition coil resistance on the mower is around 2400 ohms to 5000 ohms.
The maximum resistance can be more like 5050, which is in Husqvarna, and 5200 in Kawasaki.
Below, we’ll share a resistance chart of various brands so you can pick the right ignition coil.
In addition, we’ll also discuss how you can measure the resistance on any ignition coil, so let’s dive into the details!
Why is the Measurement of Ignition Coil Resistance Important?
Ignition coil resistance is an important measurement for a number of reasons.
First, you can’t select an ignition coil without knowing the resistance of the last one. If you pick without measuring, it won’t work correctly.
The reason is, in order for the spark plugs to ignite accurately, a certain level of resistance needs to be present in the coil.
This resistance must remain at a certain level, not high or low.
If the resistance is low or high, it can make the ignition coil components damaged.
That’s why the measurement of ignition coil resistance is important because that’s the only way you can pick the right ignition coil.
Also Read: How to Bypass the Ignition Switch On Riding Mower? [Easy Guide 2023]
How to Measure the Ignition Coil Resistance?
Here comes the next important point, how you can measure the ignition coil resistance. The answer is you have to do a small test with a multimeter.
Usually, the resistance of a working ignition coil will be different, but it will be around 2500 – 5000 ohms.
While testing if the resistance is low from 2500 ohms or high, like 6000 ohms, it shows the ignition coil isn’t working properly.
Also Read: What Is the Purpose of Choke Symbols on the Lawn Mower?
Briggs and Stratton Ignition Coil Resistance Chart
| Mower Brand | Minimum and Maximum Resistance |
| Kawasaki | 2750 ohms – 5200 ohms |
| Briggs & Stratton | 2500 ohms – 5000 ohms |
| Husqvarna | 2550 ohms – 5050 ohms |
| Kohler | 2400 ohms – 4900 ohms |
| Stihl | 2400 ohms – 5000 ohms |
Also Read: 5 Common Kawasaki Lawn Mower Engine Problems [Fixed]
Step By Step Guide to Test Your Ignition Coil Resistance
You can follow the step-by-step process below to understand how you can test your ignition coil resistance.
Remove the Ignition Coil from the Mower
The first thing you need to do is to remove the ignition coil from the mower. But before you do this, wait until the engine cools down.
Once it cools down, wear safety gloves and remove the blower housing from the mower by removing the screws.
- Afterward, rotate the freewheel to move the magnet to the ignition coil.
- Disconnect the wire and remove the mounting screws of the ignition coil.
- Lastly, remove the ignition coil from the mower.
Test the Resistance
Now it’s time to test the resistance of the ignition coil. To do this, follow the steps below.
- Set the multimeter by setting its switch to 20k.
- Make sure the positive and negative wires of the multimeter are plugged in.
- Hold the ignition coil and stick the positive wire to the plug end.
- Then hold the negative wire and touch it to the mounting place.
- You’ll see the resistance on the multimeter.
- It will be around (2500 – 5000 ohms) 2.5 to 5 in the multimeter.
- If it’s low, like 1.7, or high, like 6.8, the ignition coil isn’t working, and you need to change it.
Frequently Asked Questions (FAQs)
How many ohms should a mower ignition coil have?
The mower ignition coil resistance should be between 2400 – 5000 (2.4 – 5 ohms).
If so, there must be an issue with the ignition coil, and it’s time to change it.
What is a good coil reading in a mower?
The good coil reading in a mower is around 2.4 – 5 ohms. Nor should it be lower than 2.4 lies 2 or 1.5, or 1.6, nor should it be high like 6.
How do you test a lawn mower coil with a multimeter?
First, remove the ignition coil from the mower. Then insert the positive wire into the plug’s end and the negative wire into the mounting place.
If the resistance is normal between 2.4 – 5, then the ignition coil is good; otherwise, it’s better to change it.
Conclusion
The summary of the ignition coil resistance chart of mowers will be: Kawasaki coil resistance is between 2750 – 5200, Briggs & Stratton is 2500 – 5000, Husqvarna 2550 – 5050, Kohler and Sithyl is between 2400 – 5000.
As you can see, in all mowers, we’ve mentioned above, the resistance is around 2400 – 5000 (or a little bit high).
So that’s your answer; even if you don’t know the exact resistance, you can test if it’s between 2.5 – 5; the ignition coil is good; otherwise, bad.
