Very good spark tester. Easy to use and easy to see. The wire is long enough you can easily position it on most pieces of equipment so it is clearly visible. The squeeze clamp used to attach to the plug or to ground to the engine is high quality, many of the cheaper ones use a low quality squeeze clamp that fails. It is very similar to a Briggs and Stratton spark tester i had used for many years until it was broken. No complaints, very happy with this Oregon In Line Spark Tester, will buy again if i ever need another one.
Verified purchase: Yes | Condition: New
Tester works great! Thought I had a bad ignition coil by using an automobile spark tester. Turned out that the unit had a stuck ring resulting low compression. Fixed ring engine runs great!!
Verified purchase: Yes | Condition: New
Worked as advertised. Ignition showed to be good. Repaired carburetor, lawn mower running. Saved me time and effort. Thank u, thank u, thank u!
Verified purchase: Yes | Condition: New
Works great! Spark visible when using it, that I could not see when, instead, just using the spark plug, [plug isn't the problem, as I tried a new one too]. Used on a B/S engine, on a DR Power string mower.
Verified purchase: Yes | Condition: New
Does as advertized. Have tested on chainsaws and lawnmowers and visble spark is noted. Strongest spark is observed when grounded rather than clamped to spark plug.....then can be awkward to position and see while pull cranking the engine. Side ground (cyclinder kill ground) is unnecessary on single cylinder engines and can accidently kill runnung engine. A useful but awkward tool.
Verified purchase: Yes | Condition: New
Spark tester works, but there are no instructions, only a vague picture of how to use it. I googled how to use this spark plug tester, and there was a guy who created a video about how to remove the tester from its package! How silly is that? That was the only on-line instruction I could find.
Verified purchase: Yes | Condition: New
I would highly recommend the purchase of the Oregon 42-087 Line Spark tester. Simple to use, high quality product. This item saves time in troubleshooting starting problems. Thank You
Verified purchase: Yes | Condition: New
Works very well easy to use great product.
Verified purchase: Yes | Condition: New
This is a much better alternative than holding the coil wire in hand to see if you get jolted! LOL All kidding aside, this is a simple easy to use product that serves it's intended purpose. There are better spark testers that illuminate rather than spark that are easier to get a visual proof of spark, but for the price, this was my choice. I've only used it to confirm spark on a 26cc 2 cycle engine. The spark on a larger coil may be easier to see, but I can't confirm that at this time. The fundamental design of of it will work indefinitely. You'll never have to replace it. I recommend this Oregon spark / ignition tester.
Verified purchase: Yes | Condition: New
I bought this item to help me troubleshoot an issue with my push mower from starting. Once I found I was getting a spark, it eliminated my thoughts on what items that could be bad and helped me look at the others that might be causing the issue.
Verified purchase: Yes | Condition: New
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