Cam-chain work on your 1981 Honda CB650 starts with identifying the chain and tensioner components fitted. The selected chain is specified as 412 × 112 links, and the genuine Honda damper is a separate service part for this system.
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The chain and tensioner damper address different parts of the cam drive. Use their exact references and an inspected repair plan before ordering, particularly when earlier engine work is undocumented.
The selected silent chain is 412 × 112 links with reference 14401-426-024. Retain that specification when comparing the fitted chain and planning service. Installation method and joining requirements should follow the correct chain instructions and CB650 service information.
Inspect the tensioner system
The genuine Honda damper is referenced as 14501-323-000. It is a separately supplied tensioner component, so check the condition of the entire mechanism before deciding the order. A new damper does not establish that the rest of the assembly is serviceable.
Ordering questions
Which parts need inspection beyond the cam chain?
Inspect the chain, guide, tensioner mechanism, damper and associated hardware as a system, and order the parts the inspection identifies. A new chain alone does not establish that the surrounding tensioning components are serviceable.
Is the tensioner damper included with the chain?
The chain and genuine Honda tensioner damper are separate listings. Select the damper separately when inspection identifies it as part of the required cam-drive work.
Can I add any silent-chain rivet link?
No joining equivalence is established merely by the words silent chain. Confirm the exact link and chain compatibility before ordering, and use the applicable joining instructions for the selected chain.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.