Spark Plugs and Wires
Lawn Mowers and Garden Tools

What is the correct spark gap for a Briggs and stratton 5hp lawnmower?


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Answered 2012-04-26 13:54:38

The spark plug should be gaped at .030"(76mm)


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The correct gap for the spark plug of a Briggs and Stratton 6.75 Lawnmower engine 0.030. Most new plugs come with that gap, but it is best to check to make sure.

It is probably a Briggs & Stratton engine. You will need to supply the model number from the engine to get a correct gap.

The proper spark plug for 4hp Briggs & Stratton is a J8 which I use in all my motors.

45 thousands to 60 thousands, if you dont have a gauge use a match book cover, its 45 thousands thick, small engine mech,

not getting fire 4.75 briggs statton lawn mower

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front right of engine, from driver seat perspective, follow the 1/4 inch spark cable down to where plug is

what plug size fits a 3.75 briggs and stratton,and a 19.5 briggs engine and what is the gap. thank you

official site for Briggs and Stratton Spark Plugs is: The proper spark plug will depend on the type of 6.5 HP motor that you have. Briggs and Stratton made several different ones and the best way to get the proper plug will be to call an authorized Briggs and Stratton repair shop with the mower make and model numbers.

The spark plug gap for a Briggs and Stratton 13 horsepower engine should be .030 inches. A spark plug for this engine may be purchased at an auto parts store.

The spark plug gap for a Briggs and Stratton 13 horsepower engine should be .030 inches. A spark plug for this engine may be purchased at an auto parts store.

Go to this link and it outlines all Briggs and Stratton engine types and spares including spark plugs. Most common plug used in B&S is a RJ19LM

The Briggs and Stratton part number for a standard spark plug is 496018S. You can either buy this exact plug or call around to local lawn mower shops or auto parts providers (NAPA, O'reilly's...) and get them to cross reference the part number to see what other plugs will work.

.030 Refer to your owners manual of remove the old plug and just replace it with an identical plug.

Briggs & Stratton Ignition Coils have NO documented measurement for the primary windings, however readings of between 0.3 and 0.7 ohms are common. The secondary windings should measure between 2K and 4K (including the resistance of the spark lead)

would depend on what motor and HP - Briggs & Stratton? check the number on the spark plug and see what the standard gap is for that plug. Most all plugs are pre-gapped when you buy them. But most small Briggs & Stratton plugs are gapped at 30 thousands ( 0.030 )

694385 is a platinum plug also sold as Briggs 5066 and 5066H. Non-platinum Champion equivalent is RC12YC.

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