Kei-hin 40mm PWK 39 Genuine Carburetor Carb CR LT 500R 250R 2 strokes + jets April 17, 2025 admin Kei-hin 40mm 39PWK cnc smooth bored to 40mm Carburetor Carb Honda CR500R CR500AF kx500 Lt500r. Categories: kei-hin Post Tags: 250r 40mm 500r carb carburetor genuine jets kei-hin strokes