SOHC.co.uk Forums > CB350/400
400 four main jet o ring
ozzybud:
These are a perfect proven fit.1.2mmx3.5mm buna n70
Qty 36 was under $8.00 us
McCabe-Thiele (Ted):
According to Google serach
The main jet O-ring for the Honda CB400/4 is a 4.2mm x 1.1mm O-ring. This is the correct size for the secondary main jets in the Keihin carburetors used on this model, and it is also the size for many other Honda motorcycles from that era, such as the CB350, CB500, and CB550.
Dimensions: \(4.2mm\) (inner diameter) x \(1.1mm\) (cross-section).
Part Number:OEM part number 91301-426-010.
Bryanj:
Yup, just try buying them anywhere except Honda, or Julied who sells full carb sets for not a lot
McCabe-Thiele (Ted):
Fowlers have them in stock - not cheap.
www.fowlersparts.co.uk/search/part/91301-426-010
AshimotoK0:
--- Quote from: McCabe-Thiele (Ted) on December 01, 2025, 02:09:12 AM ---Fowlers have them in stock - not cheap.
www.fowlersparts.co.uk/search/part/91301-426-010
--- End quote ---
That must fit the main jet of a rather large marine engine Ted ;D ;D
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