How often do I need to replace the ignition points on my CB350 / CL350 / SL350? December 17, 2018 02:57 Inspect and set every 1,500 miles / 2,400 km. Consider replacing after 6,000 miles / 9,600 km. Related articles How often do I need to set the ignition timing on my CB350 / CL350 / SL350? How to set the ignition timing on the Honda CB350 / CL350 / SL350 Honda CB350 Points Modification Guide (also applies to CL350 / SL350) CB350 / CL350 / SL350 Spark Plugs Honda CB350 | CL350 | SL350 Factory Service Manuals