Compression Pressure
Check compression with engine at normal operating temperature, spark plugs removed and throttle wide open. Crank engine at least 4 "puffs" per cylinder. Lowest pressure should be at least 85% that of highest cylinder.
Check compression with engine at normal operating temperature, spark plugs removed and throttle wide open. Crank engine at least 4 "puffs" per cylinder. Lowest pressure should be at least 85% that of highest cylinder.