Air Fuel Mixture Screw Set for FCR PWK Carburetor Pilot- Screw Adjuster for CRF- TRX-YZF Motorcycle Dit Pit Bike ATV Features: new and high quality Multi-colors to select. Quality material, has long service life. Comes with spring, washer and O-ring. Universal for FCR PWK carburetor motorcycle, dit pit bike, ATV. Allows for quick-, easy- adjustment with no tools needed to adjust on the track or trail. Specifications: Material: Metal Color: Yellow/Silver/Green/Red/Blue/Black Applicable Model: for CRF- TRX- YZF- WR- WRF- KLX- KX- RMZ- 250 450 525 Package Includes: 1 Set Air Fuel Mixture Screw Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. _x000D_ _x000D_