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Lisle 50850 Ignition Spark Tester

by Lisle

Price: CDN$ 9.50 & FREE Shipping on orders over CDN$ 25. Details
Only 2 left in stock (more on the way).
Ships from and sold by Gift-wrap available.
9 new from CDN$ 6.48
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System Requirements

  • Media: Automotive
  • Item Quantity: 1

Product Information

Technical Details
Item Weight23 g
Product Dimensions13.3 x 8.9 x 2.5 cm
Item model number50850
Manufacturer Part Number50850
Additional Information
Best Sellers Rank #15,207 in Automotive (See top 100)
Shipping Weight141 g (View shipping rates and policies)
Date First AvailableNov. 1 2011
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Product Description

50850Ignition Spark TesterQuickly checks spark at plug wire. A handy tool to check ignition spark without removing the spark plug. The tool is specially calibrated to measure ignition voltage. Works on both standard and electronic ignition systems. Easy to use. Simply adjust calibration screw to proper gap size. Attach spark plug wire to end of tester. Clamp tester on engine to ground. Crank engine and check for spark. Skin-packed. Shipping wt. 3 oz.

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Most Helpful Customer Reviews on (beta) 6 reviews
1 of 1 people found the following review helpful
Functional Dec 29 2012
By Benjamin A. Baine - Published on
Verified Purchase
It does as it is intended to do, it measures spark output... We got to use this right after giving it to my Dad at christmas.... My car wouldn't start again there was no spark....boom one ignition coil later we are back in business.... :)
1 of 1 people found the following review helpful
Spark tester Feb. 20 2014
By fish - Published on
Verified Purchase
Its ok , but the clip that holds this to ground came apart, wouldnt recomend it for more than one use.
By Ron A. Vessells - Published on
I bought a bunch off these. I am a mechanic, and can alway use spark testers. These where inexpensive, but each one I used, the clip fell apart. Lisle dropped the ball on this design. They make many fine tools. This one should not have gone into production with that clip. Do yourself a favor spend $2.53 more and get the Thexton (THE404). I have used Thexton spark checkers for years and they have never broken yet. The body of the lisle spark checker is nice, the screw in piece is heavy duty, and I like how it adjust better than the Thexton. If lisle would have put a clip on that doesn't fall apart the first time you use the tool, then they would have blown the Thexton out of the water in terms of price and quality.
2 of 3 people found the following review helpful
Save your cash. Not worth your effort to read about it, let alone try to use Nov. 27 2013
By Christopher - Published on
Verified Purchase
Not worth the money. Screw in post is not retained once the proper gap is adjusted. Post also in not retained to be perpendicular to the base, so there's no guarantee that what you are testing is the gap that you wanted. Clamp is right on the piece, so if you don't have plentiful spark plug wire length, it becomes complicated to find a close ground that isn't the battery post. Bought this to test the spark on my motorcycle. Shocked myself a couple of times, it is an extremely simple tool, but was not constructed/designed to make any part of it easy to use/fool proof. Will test my spark the old fashioned way from now on.
These work fine if you know what you're doing Nov. 22 2014
By Gene Coutolenc - Published on
These work fine if you know what you're doing, and they are certainly cheap enough. Best to use a clip lead or ground wire to it to provide the ground. I check the spark at a wider gap than the plug, because the gap in compression is always harder to fire than a spark in free air, so it's irrelevant what the plug gap is anyway. Easy to spread out and check for a weak spark plug wire feed. If you want it to stay in place use a little blue loctite or thread dope.