On a 5.5 HP Briggs & Stratton engine, the valve clearance is typically set to 0.004-0.006 inches for the intake and 0.006-0.008 inches for the exhaust valves when the engine is cold. Proper adjustment ensures optimal engine performance, allowing for efficient airflow and combustion. It's essential to consult the engine's specific service manual for precise specifications, as they may vary slightly between models.
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