ITEM NAME:10pcs Carburetor Main Jets With 10 Slow Pilot Jets for PWK Keihin UKY Descriptio n Description: Product Name:Carburetor Main Jet / Slow Jet Material:Metal copper Technical specifications of Main jets: 1. Size same as Keihin 99101-357 Main Jet 2. 16.5mm in length with a 6mm Round Head 3. Thread: 5mmx0.8 4. The length of thread: 5mm 5. package includes 1 each of following sizes 155, 158, 160, 162, 165, 168, 170, 172, 175, 178 Techinical specifications of Slow Jet: 1. Same size as Keihin N424-21 Slow Jet 2. 28mm in length with a 5mm Round Head 3. The diameter of thread is 6mm x 0.75 4. package includes 1 each of following sizes 32 35 38 40 42 45 48 50 52 55 Fitment the following carb(reference only): Aftermarket CVK20, Aftermarket and OEM FCR-MX, PD22, PE20, 26, 28, 30mm, PJ34, 36, 38mm, PWM 34, 36, 38mm, PWK28, 33, 35, 38, 39mm, PWK36 Quad Vent, PWK 35, 38 Quad Vents/Air Strikers, Honda ATC200 (81-83), ATC250R (83-84), FL350R Odyssey (1985), CRF450R (02-05) TRX450R (2006), CR500R, CBR1000F Hurricane (87-88) KX250, KX500 with Keihin PWK carburetor. Please compare with old jet before.KX250, KX500 with Keihin PWK carburetor. PWK 35, 38 Quad Vents/Air Strikers, Honda ATC200 (81-83). Technical specifications of Main jets 10x Slow Jets. 10x Main Jets. Techinical specifications of Slow Jet.