What is the valve adjustment / tappet clearance specs for the Honda CB550K / CB550F / CB500K? December 17, 2018 05:58 Intake: 0.05 mm (0.002” in)Exhaust: 0.08 mm (0.003” in) Related articles How to adjust the cam chain and valves on the Honda CB500K / CB550 How to set the ignition timing on the Honda CB500K / CB550 Honda CB500 and CB550 4-Cylinder Factory Service Manuals The Horn Circuit: Electrical Troubleshooting and Basics on a Vintage Honda Motorcycle What are the valve adjustment / tappet clearance specs for the Honda CB175 / CL175 / SL175 / CB200 / CL200