Dynojet offers a wide range of kits to fit any application. Several types (stages) of kits are available to fit your specific needs. No matter what you ride, Dynojet Carburetor Jet Kits can provide you with a simple and affordable solution to all your carburetion problems. Dynojet Jet Kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy. Each Dynojet Jet Kit includes comprehensive instructions which show step-by-step installation and testing procedures to ensure a perfect setup every time. This is backed by free telephone and Internet support to Dynojet customers. Kit installation and Dynamometer services are available in many parts of the world. Stage 1 Jet Kit: Intended for motorcycles with a stock engine using the stock airbox, air filter and stock pipe.