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Carburetor Rubber Passage Plug - Set of 2 - Honda CB/CM400/450 CX/GL500


Product Description

Carburetor passage plug made of Viton rubber. Viton is the best material available for carburetor parts because it will not swell after contacting fuel. This little plug goes on top of the hole between the main jet and the pilot jet. Once the stock plugs harden they don't do their job anymore. It's a strange system, but since it's Honda, they must have known what they were doing.

Height: 8.8mm
Diameter at top: 8mm
Diameter at bottom: 5.9mm

Sold as a set of 2.

Honda Part Numbers (Part of the Gasket Set): 16010-425-671, 16010-469-004, 16010-425-305

Fits Honda:

CM250C - 1982
CB400A Hawk Hondamatic - 1978
CB400TI Hawk - 1978-1979
CB400TII Hawk - 1978-1979
CB400T Hawk - 1980-1981
CM400A Hondamatic - 1979-1981
CM400C Custom - 1981
CM400E - 1980-1981
CM400T - 1979-1981
CB450SC Nighthawk - 1982-1986
CB450T Hawk - 1982
CM450A Hondamatic - 1982-1983
CM450C Custom - 1982
CM450E - 1982-1983
CX500 - 1978-1979
CX500C  - 1979-1982
CX500D - 1979-1981
GL500 Silver Wing - 1981-1982
GL500 Silver Wing Interstate - 1981-1982

Product Reviews

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  1. Better than the originals 5 Star Review

    Posted by on 20th Apr 2018

    Swapped these in while rebuilding the carbs in my 1983 CM450A. Honestly I probably could have gotten away with reusing the old ones, but less than $3 for complete peace of mind was well worth it.

    These plugs have a much snugger fit than the originals they replaced. I cannot say if that is a design difference or if the old ones were worn over time, but either way these are better than the originals because of the tighter fit.