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The RFX FXMS 10100 55BU is a precision-engineered fuel mixture screw designed specifically for Keihin FCR carburetors. Its primary purpose is to replace the standard hard-to-reach fuel screw, enabling quick and easy adjustments directly at the track without the need for complex tools or disassembly. Constructed for durability and ease of use, this screw ensures precise fuel mixture tuning to optimize engine performance in racing or recreational riding scenarios. The screw features a high-quality O-ring for a secure fit and reliable sealing, preventing fuel leaks and maintaining optimal carburetor function. Available in vibrant colors such as red, orange, and blue, it allows for quick identification and customization of your carburetor setup. The blue variant, as highlighted here, offers an excellent combination of visibility and functionality, making adjustments straightforward even in challenging conditions. The compact design ensures compatibility with a range of applications where quick access and reliable sealing are priorities. Whether you're fine-tuning your engine for peak performance or performing routine maintenance, this fuel mixture screw provides a dependable solution that simplifies the process. Crafted by RFX, a trusted brand in aftermarket motorcycle and ATV components, it guarantees quality and performance for serious riders and enthusiasts alike.
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