Prevent idle mixture screw leaks with this Twin Power™ repacking kit. The Twin Power™ Fuel Mixture Repacking Kit allows you to maintain your carburetor for peak performance. This kit includes spring, O-ring and washer and fits all Keihin FCR MX carbs

• Essential component for complete carb rebuilds, priced affordably for frequent service
• Direct fit fot CV carbs, ensuring smooth low-speed operation and emissions compliance
• Precision O-rings and seals eliminate air/fuel leaks at idle adjustment screws