Thanks for that. Can you post a picture of the page please? My frame is 5041877 which ties in.My parts book shows K3/K4/K5 serial numbers. Oddly enough, there are separate lines for the CL450 for General Export and Australia, but only General Export for non-European countries for the CB450. The CL450K5 frame number for Australia is shown as 5008489~, while the number for GE CB450K5 is 5013282~.
The engine numbers are not called out by region.