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How To Test Ignition Coil On Leaf Blower

By : Your One & Only Leaf Blower Expert, Mr. Efrain E. Silva!

The first thing to take out is the spark plug — go ahead and do this by simply just pulling off its rubber boot. Then after that, I need you to clamp your alligator clip ( which is found right on your basic ignition tester ) right over to your spark plug. Make sure that you then insert the tester’s other end right into the inner part of the rubber boot’s connector, all in all. Done? Keep reading… there is more to do, my friend….

How To Test Ignition Coil On Leaf Blower

Then you are going to need to just pull on that starter rope… but WAIT. Do NOT do so before you first make sure you are fully in the clear… and what do I mean by that? Well, I mean, the ignition tester leads can truly shock you and send you for the surprise of your life if you are close to them as you do this. So back up a bit and keep your distance. Still with me? Let’s keep going….

Next, you are going to want to watch your tester’s transparent window as you pull that rope. If blue sparks shoot out through the terminal area, even if ever – so briefly ( while, at the same time, your engine starts up ) , then you can note that the coil and plug now both work. Next, you are going to need to take out the alligator clip from that spark plug and then be sure to clamp it up nicely on a bolt… which one, though? Well, you are going to want to go with the one that lies on the cylinder head of the leaf blower…. see it? Good.

Now, after doing this, you need to then pull your starter rope once more. Now, in this case, unlike with last time, if the same blue sparks come up really quickly, then that means that you need to change out the spark plug. Get a new one and put it in, or have an expert do it. But if you get no spark at all, then you can know for sure that either the coil itself has, indeed, burned itself out…. OR the plug lead no longer works. In either case, it’s not good. Now, then, here comes the last and final step, my friend ( are ya still with me? ) …..

You are going to need to replace that plug lead, re – test it and then watch for that spark again. If it does NOT show up, in this instance, then that means the coil IS bad. You need a new one.

If you have tried all these steps, and noticed one or either of these conditions, then please take whatever action you need to take asap. A bad ignition coil, spark plug, lead, or anything else is not something to take for granted. Safety and efficiency, with your leaf blower, are important.