What is the spark plug gap for the CB550K / CB550F / CB500K? Brenden December 17, 2018 05:54 Follow Gap specification: 0.6 - 0.7 mm (0.024 - 0.028 in.) Related articles What spark plug do I need for my CB550K / CB550F / CB500K? What is the valve adjustment / tappet clearance specs for the Honda CB550K / CB550F / CB500K? How to change the oil and oil filter on the Honda CB500K and CB550 How to set the ignition timing on the Honda CB500K / CB550 How to adjust the cam chain and valves on the Honda CB500K / CB550 Comments 0 comments Please sign in to leave a comment.