Honda motorcycle parts
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1974 Honda CB350F1 · Valve Stem Seals Buying guide
Honda lists eight valve stem seals through engine 2001334 and four from engine 2001335. Replacement heads or previous work make inspection of the fitted guide arrangement important.
The head and exhaust-guide change at engine 2001335 coincides with the seal quantity changing from eight to four. Individual seals are available for a counted order; the Kibblewhite package contains eight. Do not assume all eight supplied seals belong on every F1 head.
The individual replacement and Kibblewhite eight-piece Viton set share the stated 12209-333-005 reference. Choose package quantity after checking the fitted head. A later F1 requiring four seals can leave unused seals from an eight-piece package; that is not a reason to add seals to other positions.
The Honda catalog specifies eight through engine 2001334 and four from 2001335. Check the fitted head as well as the number, since a later replacement can alter the relevant arrangement.
The replacement seal is sold individually. Count the positions required by the fitted head and the engine-number application before ordering, rather than assuming a full-engine package is supplied.
The eight-piece Kibblewhite package uses Viton seals. Its material and package size do not change Honda’s four-seal requirement from engine 2001335 or establish the arrangement of a replacement head.
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