How often do I need to replace the ignition points on my CB450 / CL450 / CB500T? Common Motor December 17, 2018 05:32 Follow Inspect and set every 1,500 miles / 2,400 km. Consider replacing after 6,000 miles / 9,600 km. Related articles How do I set the ignition timing on my CB450 / CL450 / CB500T? What spark plug do I need for my CB450 / CL450 / CB500T? What size fuse do I need for my Honda CB450 / CL450 / CB500T? What type of fork oil and how much fork oil should I use in my CB450 / CL450 / CB500T? How do I rebuild a Honda CB450 / CL450 Carburetor? Comments 0 comments Please sign in to leave a comment.