How often do I need to set the ignition timing on my CB450 / CL450 / CB500T? December 17, 2018 05:31 Every 1,500 miles / 2,400 km. Related articles How do I set the ignition timing on my CB450 / CL450 / CB500T? What size fuse do I need for my Honda CB450 / CL450 / CB500T? Honda CB450 / CL450 / CB500T Factory Service Manuals How to change the oil on the Honda CB450 / CL450 / CB500T How to clean the oil filter on the Honda CB450 / CL450 / CB500T