Honda motorcycle parts
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1982 Honda CB900F Supersport · Steering Head Parts Buying guide
The tapered kit serves the steering bearings, while the stem nut and thread-on head lock nut have different references. The separate washer belongs to its matching stem hardware and should be assessed independently.
Tapered steering conversion kitIncludes upper and lower tapered bearing races; made in Japan.View part
Thread-on steering head lock nutReplaces reference 90302-425-830 for the listed steering-head application.View part
Individual steering stem nutReplaces reference 90304-425-000; washer is a separate purchase.View part
Related parts: Steering stem washer
The tapered kit includes upper and lower bearings with races. Inspect the stem and bearing seats, and use the kit’s installation guidance together with the Honda assembly procedure. Tapered-bearing setup needs a correct adjustment and final free-movement check; the stem top nut and adjusting hardware have different jobs.
The main stem nut is reference 90304-425-000, with washer 90503-425-000 offered separately. The thread-on head lock nut uses 90302-425-830. These are distinct hardware choices; compare the actual location and condition of each before deciding which items belong in the order.
Adjustment can address incorrect free play, but it cannot repair pitted or notched bearing surfaces. Inspect the bearings and races when the steering feels rough or catches at center. Avoid tightening until the steering binds to hide worn parts.
No. They occupy different positions and have different references: 90304-425-000 for the stem nut and 90302-425-830 for the head lock nut. Match the assembly drawing and inspect the threads; do not apply one fastener’s tightening procedure to the other.
Follow the bearing kit and Honda assembly guidance, then verify smooth steering without excessive play or binding. Check cable and hose movement through the steering range too. Recheck the installation as the kit instructions require rather than assuming a new bearing is correctly adjusted by feel alone.
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