Specifications Hign-concerned Chemical:None Special Features:Carburetor Main Jet Slow Pilot Jet Item Weight:0.13kg External Testing Certification:CCC Model Name:For PWK Keihin OKO KOSO CVK Item Type:Carburetor Material:brass Origin:Mainland China Easy and Direct Replacement:Stable Performance & Durable Service. Pilot Jet Model:#32,#35,#38,#40,#42,#45,#48,#50,#52,#55 Carburetor Main Jet Model:#120 , #125 , #130 , #135 , #140 , #145 , #150 , #155 , #160 , #170 (PWK 28mm-42mm),#100 , #105 , #108 , #110 , #115 , #120 , #125 , #130 , #135 , #140 (PWK 21mm-34mm),#100,#105,#108,#110,#115,#120,#125,#130,#135,#140 30Pcs Carburetor Main Jets and 10Pcs Slow Jets Pilot Jet Kit Fits for PWK Keihin OKO KOSO CVK Carburetor Slow Jet / Pilot Jet Model #32,#35,#38,#40,#42,#45,#48,#50,#52,#55 Thread Size: 6mm x 0.75mm Nut diameter: 5mm/0.19" Length: 28mm/1.1" Carburetor Main Jet Model #100 , #105 , #108 , #110 , #115 , #120 , #125 , #130 , #135 , #140 (PWK 21mm-34mm) Thread pitch: 4.7 x 2.5 mm Nut diameter: 5.7 mm Carburetor Main Jet Model #100 , #105 , #108 , #110 , #115 , #120 , #125 , #130 , #135 , #140 (PWK 21mm-34mm) #120 , #125 , #130 , #135 , #140 , #145 , #150 , #155 , #160 , #170 (PWK 28mm-42mm) Pitch 5mm 0.8, the amount of the total length of the hole 16.5mm, which cap the length of 11.5mm, thread length 5mm, nut diameter 6mm