Honda motorcycle parts
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1982 Honda CB900F Supersport · 16mm Lock Nut Buying guide
Honda reference 90231-KCS-651 and its stated supersessions identify the offered hardware. Compare the required location rather than assigning every clutch or oil-filter-rotor use in the broad description to this motorcycle.
The product description names several superseded references and applications across different motorcycles. Use the appropriate parts information to confirm the nut for the exact location being serviced. A general clutch-and-rotor description is not a reason to assume the CB900F has every listed arrangement.
A replacement nut cannot restore a damaged shaft thread or an incorrect assembly stack. Confirm the exact location in the parts information, inspect the mating components and use the Honda service procedure for holding, tightening and locking. The broad clutch-and-filter-rotor product description spans other Honda designs.
No. The original F has a paper-element oil filter in a center-bolt housing. Confirm this nut’s required location and reference in the fitted clutch assembly; do not transfer centrifugal-filter-rotor uses from other motorcycles to this one.
No. Inspect the shaft threads, nut engagement and associated locking parts before assembly. A damaged thread or incorrect stack of parts needs correction first. Follow the Honda holding and tightening procedure instead of using extra force to make the nut secure.
Identify the actual assembly and check its parts information for the required nut and locking method. The original CB900F year and the general 16mm description cannot verify hardware in a different clutch or engine.
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