Twin Power Big Twin and XL with CV Carburetor Idle Mixture Needle Repack Kit

Prevent idle mixture screw leaks with this Twin Powerâ„¢ repacking kit. The Twin Powerâ„¢ 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