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Designed specifically for use in closed-course racing, the ALL BALLS CV Carburetor Rebuild Kit for 1990-1999 Harley Evolution Big Twin motorcycles offers a comprehensive solution to restore and optimize your carburetor performance. This kit includes high-quality components based on US models, with careful consideration needed when installing on non-US bikes to ensure compatibility. All rubber parts, including O-rings and gaskets, are made from NBR rubber, which provides excellent resistance to ethanol fuel, enhancing durability and longevity in demanding riding conditions. The kit contains essential components such as gaskets, O-rings, float bowl, carburetor cap, accelerator pump screws, and an extended fuel mixture screw with spring, washer, and O-ring, enabling precise tuning of your carburetor for optimal fuel delivery and performance. The included accelerator pump diaphragm, spring, and boot, along with a float needle valve featuring FMK tips, ensure reliable operation and fuel regulation. To accommodate various tuning needs, the kit also offers an emulsion tube, slide needle, and multiple main and pilot jets—three of each—to fine-tune both stock and modified engines for peak performance. Whether restoring a vintage motorcycle or customizing your bike for racing applications, this rebuild kit provides all the necessary components for a thorough overhaul, helping your Harley run smoothly, efficiently, and reliably. Proper installation and tuning of these parts can significantly improve throttle response, power delivery, and fuel efficiency, making it an essential upgrade for serious riders and enthusiasts alike. Trust ALL BALLS’ reputation for quality parts designed for high-performance motorcycle maintenance and rebuilds.
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