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Oct 15, 2012 - Uploaded by ChrisFix
How to correctly gap a spark plug. This is a fast and easy video on how to gap a spark plug and spark plug gap ...
Briggs & StrattonFollow this step-by-step image guide to locate spark plugs in different Briggs & Stratton engine types. ... Spark Plug Type & Gap Chart for Briggs & Stratton Engines. Now that you've found the part you'd like to replace, you can use the chart below to identify the genuine Briggs & ...
More than likely you need new spark plugs, or you have a bad Coil on plug. To test each coil on plug, read the following:
A commercial coil tester, available from many tool suppliers, is an excellent way to test suspect coils. If the coil can generate a spark on the tester, the coil should be in good condition.
An ohm meter can also be used to test coil winding resistance. Primary-side resistance, from coil minus to coil plus, is typically between 0.3 and 1.0 ohm on electronic ignition type coils.
Secondary resistance values vary widely, so consult a specifications chart for the engine you are servicing. If a spec chart isn't available, compare secondary readings among all the coils to see if any one is higher than the others. A high resistance indicates deterioration in the wiring. Surprisingly, a coil with high resistance may still fire the spark plug, but the voltage produced will be higher because the current must jump the open wiring in addition to jumping the spark plug gap.