Amazon Spark Plug Tester Comparison, SHOCKING RESULTS!!!

Amazon spark plug and ignition testers. This was a fun test of all the spark testers I could buy on Amazon. I had no idea spark testing would be so much fun!! Amazon links to all four contestants are below.
Stens Tester (Winner!): amzn.to/3P5tf2m
Lisle 20610 Tester (Red Box): amzn.to/3yhRVhP
Crazy Gap Tester: amzn.to/3vNrj6V
Crazy Spark Plug Looking Tester: amzn.to/3vNrj6V
Mower Mike’s Tool Store: www.amazon.com/shop/mowermike
Mower MIke
Disclosure: The Amazon link above is an Amazon affiliate links. This means that, I do earn a very small commission (at no cost to you) if you click the link and finalize a purchase.

[@ARW981]

The glass part of isle one is reversable to fit different size spark plug connevtions

[@rc648]

The last one is more of a coil tester vs spark plug tester. You can see the color of the spark and the width and distance of the flame. You may get a spark from a coil to get it running...but, it may not be strong enough of a spark for best performance

[@paulcarpenter5078]

FYI SE stands for Small Engine, so strimmer, chainsaw or lawn mower type device. Great to see that tested the way you did. Brave man... ;)

[@MowerMike]

Was a fun one for sure

[@dporrasxtremeLS3]

Great Video! Mike! Subscribed! Tons of information on your channel! Thanks!

[@MowerMike]

Welcome aboard!!! I can’t believe I have so much out there now

[@glennmckinley3058]

sometimes the clip on ones are hard to fine a place to ground. So much plastic these days. Like on a leaf blower for example.

[@MowerMike]

Right totally agree

[@armyvet4081]

in the old briggs manuals -it shows how make a spark tester- a piece of wood and some screws- I have made many- they work

[@MowerMike]

Wow never heard of that one very cool

[@The-Armed-Pacifist]

Power of suggestion. I swear I smelled fuel rich exhaust fumes when you tested number two.

[@MowerMike]

Right never a good idea I got that door open quick.

[@wpowerwagon]

K I have one for you, with a new stihl coil, set up the air gap, with a new or used spark plugs, I get a white in color spark, I put a drop of gas on the plug and spun it and it sparked but did not lite the gas, any idea

[@MowerMike]

Can’t help ya there. I would never just hold a spark plug and pour gas on it and see if it blows up. You are on your own with that one.

[@lzh3131]

@@MowerMike🤣🤣🤣🤣

[@vicpetrishak7705]

The best one is the adjustable air gap product , it shows the strength of the coil and the spark color . Lisle 20700 . Easy people to communicate with over the phone . 1/23

[@MowerMike]

Yep super cool tester, they all are fun.

[@vicpetrishak7705]

( SE ) Spark Energy . Numbers stand for Kilovolt, thousand volt . Engine coil should produce at least 6 kilovolts , 6 X .03937 = .33622 tester air gap .

[@martyturpen4535]

​@@vicpetrishak7705 so where did you pull .03937 from? So your telling me that the 40 on my tester is kilo volts or 40,000 volts? Where did you get your answer to the math problem you provided?

[@vicpetrishak7705]

@@martyturpen4535 One millimeter is .03937 of one inch . One inch is 25.4 millimeters. 25.4 Millimeters X .03937 of an inch = .999998 of one inch . Hope this explanation is helpful . 3/4”wrench = 19 mm wrench .750 X .03937 = .74803 .00197 difference in wrench size .

[@vicpetrishak7705]

@@martyturpen4535 Typical mathematics books or internet calculator .

[@armyvet4081]

even better- an old plug wire from a car- cut it in half- join together with a piece of clear plastic hose- leave about 1/4 inch gap

[@MowerMike]

Wow now that is a cool idea. Wish I knew that one before I shot the video

[@brucec2635]

My Lisle made in Tiawan. Good. No instructions, bad.