What is the spark plug gap for the CB450 / CL450 / CB500T? Common Motor December 17, 2018 05:13 Follow Gap specification: 0.7 - 0.8 mm (0.028 - 0.032 in.) Related articles What spark plug do I need for my CB450 / CL450 / CB500T? The White / Yellow Wire Stator Coil Mod - How To Increase Charging System Output : CB175 / CB350 / CB360 / CB450 What size fuse do I need for my Honda CB450 / CL450 / CB500T? How often do I need to clean or change the oil filter on a CB550K / CB550F / CB500K? Honda CB350 / 360 / 450 Ignition Wiring Comments 0 comments Please sign in to leave a comment.