What is the spark plug gap for the CB350 / CL350 / SL350? Common Motor December 17, 2018 02:37 Follow Gap specification: 0.7 - 0.8 mm (0.028 - 0.032 in.) Related articles What spark plug do I need for my CB350 / CL350 / SL350? What size fuse do I need for my Honda CB350 / CL350 / SL350? How often should I change my front fork oil on my CB350 / CL350 / SL350? How often do I need to replace the ignition points on my CB350 / CL350 / SL350? Honda CB350 Specs Comments 0 comments Please sign in to leave a comment.