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Motorcycle Repair/CA160 6mm transmission bushing locating pin sheared

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Question
Hi Bill, I'm rebuilding my 1965 CA160 and the bushing locating pin on the lay shaft (part number 90702-200-000) is sheared off. I can't find any NOS ones online and though I found some in a case at the local salvage place, they were already bent up, even with only 8000 miles on the motor. I understand this is a common problem on these and that a part like this is designed to break first and protect other parts from breaking.

My question is this: How much trouble am I asking for if I replace these pins with a solid steel pin? If it matters, I'm not going to be racing this bike - just countryside touring.

Thanks in advance!

Answer
Bob, I ran across a problem like this for a CB160 engine last year. As long as the pin isn't feeding oil into the bushing there, then a solid pin should work just fine.

To keep the CB160 from bending its dowel pin again, I used a 7mm pin from a CB77 engine, which has a thicker wall, as well as a larger OD for improved strength and reliability.
90705-259-020 PIN, KNOCK (7 X 12) I just drilled the bushing and case hole out carefully and installed the new pin as-is, if I recall correctly.

Bill Silver

Motorcycle Repair

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Bill Silver

Expertise

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.

Experience

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.

Organizations
VJMC (Vintage Japanese Motorcycle Club) of North America

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

Education/Credentials
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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