What is the spark plug gap for the CB350 / CL350 / SL350? December 17, 2018 02:37 Gap specification: 0.7 - 0.8 mm (0.028 - 0.032 in.) Related articles How to set the ignition timing on the Honda CB350 / CL350 / SL350 What size fuse do I need for my Honda CB350 / CL350 / SL350? Honda CB350 | CL350 | SL350 Factory Service Manuals Honda CB350 / CL350 / SL350 engine valve (rocker arm) & cam chain adjustment Honda CB350 Points Modification Guide (also applies to CL350 / SL350)