Motorcycle Repair/Years?


Hello Bill,  I just picked up a CL77 & CB77 rolling frames and would like to know what years they are.  CB77-1028489 & CL77-1022617  Thanks for your help.

John, Honda began using the 7 digit serial numbers in the 1965 production run. The CB is most likely a late 1965 or early 1966 model. The CL77 was probably built around the same time frame. Honda didn't make year/model distinctions during those three years of 1965-67, so you have to divide the total production numbers up, roughly by one third. They did about 54,000 CBs and 68,000 CLs during those years.

I have Restoration Guide packages for all three 250-305 series machines that will completely educate you on the major and minor changes made throughout their production runs.

Bill Silver  

Motorcycle Repair

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Bill Silver


Need help with vintage Hondas from the 1960s? I am an expert with 250-305cc bikes in particular and most all of the other pre-91 models, in general. I do NOT claim to have a great deal of experience on Gold Wings, Cruisers, ATC/ATVs and dirt bikes.


I have owned/ridden/maintained Honda motorcycles for 35 years. I have written five books on Honda repairs and collecting. I was a service manager for two Honda shops back in the 1980s.

VJMC (Vintage Japanese Motorcycle Club) of North America

VJMC newsletter, as editor for two years and as contributing editor currently.

3 years auto shop in high school, teacher's aide in Automotive Technology in Jr. College, Diesel mechanic course in college, self-taught mechanic and automotive writer.

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