Briggs & Stratton — To Check for Spark
Testing & diagnosis · ignition system
From a Briggs & Stratton service manual — check it applies to your exact model before use.
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Procedure
- Remove the ignition cable from the plug and remove the plug
- Hold the ignition cable terminal about 3/16 inch from any metal part of the cylinder head
- Turn the engine; if the spark jumps the gap the entire ignition system except the spark plug is O.K.
- If no spark develops, check the cable and refer to magneto adjustments
Source: Briggs & Stratton service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.