O-ring fuel joint for Keihin FCR MX carburetors. This fits : all Keihin FCR MX carburetors. MXParts:your #1 source for Keihin FCR carburetors and parts ! Genuine Keihin, high quality parts. Keihin part number : W9351-13057 (018-755).
On a 2008 ktm 450, upon reattaching the carb after doing a top-end replacement, I noticed a leak at the fuel inlet. After finding a schematic for the FCR carb, i learned about these 3 orings. I ordered them a d they appeared quickly. I installed them and now there is no leak. Thanks!
The o-rings are difficult to find and Yamaha no longer has them available for purchase. Must have three of these special o-rings to connect a vital part to the carb so gasoline can flow.