Vintage Motorcycle: Honda CM450 Valve Adjustment

Adjusting the valves on a 82' cm450 is an important part of maintaining a well running machine. Let this guide walk you through the procedure. Quick Reference: Cylinder Head Bolts 23 ft-lb Intake Valve Clearance 0.08-0.12mm (0.003-0.005in) Exhaust Valve Clearance 0.12-0.16mm (0.005-0.006in) 00:00 Shifter, Foot Peg and Case cover 00:21 Spark Plugs, Cam Breather and Valve Cover 00:43 Overview 01:25 Cylinder Head Bolts 01:35 Setting TDC 02:10 Check Valve Clearance 02:20 Adjust Valve Clearance 03:10 Reinstallation