Pièces pour motos Honda
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1983 Honda CB450SC Nighthawk · Engine Buying guide
The paper element is supplied singly, the tappet hardware comes as a screw-and-locknut set for one valve, and the main valve-cover gasket is a separate purchase. For deeper work, compare the overhaul gasket set with the joints you will open rather than judging its contents by the photograph.
Valve adjuster and its locknutEach package provides adjuster 90012-426-000 with locknut 90206-250-000 for one valve. The listed CB450 twin needs six sets to renew every position; a partial repair needs only the affected sets.Voir la pièce
Stock-style paper filter elementThis element matches the three listed Honda filter references and is supplied as one filter. Compare the installed filter assembly before treating an old or modified engine as an original arrangement.Voir la pièce
Athena main valve-cover gasketReference 12328-413-830 identifies the main cover gasket, with one supplied for one compatible engine. Separate cover washers, grommets or plugs need their own condition and reference checks.Voir la pièce
Pièces connexes : Overhaul gasket set for a broader repair · Stem seal for the listed intake positions · Silent cam chain, 412H × 110
A screw-and-nut set services one valve, while the oil filter and main valve-cover gasket each have a stated one-per-engine requirement. Keep those counts attached to the work being done. None of these package names establishes the contents of a separate overhaul gasket set.
The stem seal references 12208-413-003, 12209-KL4-005 and 12209-428-003 apply to the listed intake positions. Four are used there on the CB450 twin, whereas its two exhaust valves use a different seal specification. Identify the valve position before buying seals.
Count the valves whose adjusters need replacement and order that many sets. Each contains a screw and locknut for one valve. Six sets cover the listed CB450 twin, so a complete-engine quantity is unnecessary for a smaller repair.
The Athena gasket supplies the main cover seal. Check the exact model’s separate sealing washers, grommets and rubber plugs for hardening or damage, and order those independently when needed rather than assuming they accompany the main gasket.
Match its stated CB450SC application to the installed engine, then confirm the pieces needed at every joint you plan to open. The description gives no itemized contents list, so photograph shapes alone cannot confirm a particular seal or gasket.
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