The coil gap on a 4 HP Briggs & Stratton engine is typically set to about 0.012 to 0.020 inches (0.30 to 0.51 mm). This gap is the distance between the ignition coil and the flywheel, which is crucial for proper spark generation. It's important to use a feeler gauge to ensure accurate settings for optimal engine performance. Always refer to the specific model's service manual for exact specifications.
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