10-Piece Hexagon Carburetor Main Jet Kit for Keihin FCR OKO KOSO PE PWK

Get your engine running at peak performance with this 10-piece Hexagon Carburetor Main Jet Kit, engineered specifically for Keihin FCR, OKO, KOSO, PE, and PWK carburetors. Whether you are re-jetting after installing an aftermarket exhaust, fine-tuning for high altitudes, or simply refreshing old, clogged components, these precision brass nozzles provide accurate and consistent fuel flow. Crafted from high-grade solid brass, each hexagon main jet is built to resist fuel degradation, ethanol wear, and thread damage under regular maintenance. Their precise machining guarantees consistent spray atomization, helping you dial in optimal air-fuel ratios, eliminate bogging, and maximize throttle response across the rev range. An essential workshop accessory for dirt bike, ATV, scooter, and go-kart enthusiasts, this multi-pack gives DIY mechanics and motorsport hobbyists the flexibility needed for fast, hassle-free carburetor tuning.