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Description:
lign="left">4. Test Method1). Place the spark plug on thepedestal;
2).Power-on;
3). Pressthe key switch, the red LED will illuminate and the good spark plugwill generate a strong spark and the bad will generate a faint oneor not .
4).Loosen the key switch, take the spark plug down the tester bypinching the bottom of it.
Auto Ignition Spark Plug Tester MST-880 In Stock