Custom processing is the purpose of PWK main jet hole, main jet and auxiliary jet Idle port size 32-80 (mm) model KE N424-21 applicable models PWK PWM CVK PD FCR carburetor article number SCL-2018090003-ZH specification A #32-55,B #58-80 can be used for PWK carburetor, suitable for FTER MARKET FCR, CRS, PWM, suitable for Mikuni VM22 VM24 VM26 product name: Main Jet Slow/Pilot Jet For PWK Keihin OKO KOSO PE Carburetor Vice injectors carburetor modified vice injector idle speed Measuring Hole Product Details: Brass Applicable: FTER MARKET FCR, CRS, PWM PE-20-28PE (Motocross) PJ PDVG (Motocross) (ATV) PWK (Motocross) PWM (Motocross 21mm – 42mm Carburetor )