Features: 1.Made of high?quality aluminum, corrosion resistant durable and has long service life. 2.Small and light, easy to install, ready to use, can bring you more convenience. 3.Fit for Keihin FCR, KOSO, OKO, PWK, and PE of the carburetor, to better meet your needs. 4.Sufficient quantity to better meet your needs, reserve some of them spare, can bring more convenience to you. 5.Sophisticated production, has good workmanship, good performance, can be used for a long time. Specification: Condition: 100% Brand New_x000D_ Item Type: Main Jet Set_x000D_ Material: Aluminiu_x000D_ Color: As the Picture Shown_x000D_ Technical Specifications of Main jets:_x000D_ 1. Size same as for Keihin 99101-357 Main Jet_x000D_ 2. Approx. 16.5mm/0.65in in length with a Approx. 6mm/0.24in Round Head_x000D_ 3. Thread: Approx. 5x0.8mm/0.2 x 0.03in_x000D_ 4. The length of thread: Approx. 5mm/0.2in_x000D_ 5. Package includes 1 each of following sizes 155,158,160,162,165,168,170,172,175,178_x000D_ _x000D_ Techinical Specifications of Pilot Jet:_x000D_ 1. Same size as for Keihin N424-21 Pilot/Slow Jet_x000D_ 2. Approx. 28mm/1.1in in length with a Approx. 5mm/0.2in Round Head_x000D_ 3. The diameter of thread is Approx. 6 x 0.75mm/0.23 x 0.03in_x000D_ 4. Package includes 1 each of following sizes 32 38 40 42 45 48 50 52 55_x000D_ Fitment the following carb(reference only):_x000D_ Aftermarket for CVK20, Aftermarket and for OEM FCR-MX,_x000D_ Fit for PD22, PE20, 26, 28, 30mm, for PJ34, 36, 38mm, for PWM 34, 36, 38mm,_x000D_ Fit for Keihin FCR, KOSO, OKO, PWK, and PE of the carburetor.? PackageList: 10x Main Jets 10x Slow Pilots