A jet kit is a comprehensive assortment of jets that allows you to reconfigure your carburetor’s fuel delivery either to suit some specific purpose such as the installation of an aftermarket exhaust or airbox kit, or to correct some deficiency in the way the bike runs from the factory.
What do Jets do in a carburetor?
Carburetors contain tiny nozzles—these are the “jets”—that have holes. Fuel passes through these holes to mix with air. This creates mist, which then travels to the combustion chamber, where it’s used as energy to run your engine.
What does Stage 1 jet kit do?
Stage 1 kits are designed to improve throttle response and drivability and in most cases power increases of approximately 5% throughout the entire power range can be achieved.
What does a Stage 3 jet kit do?
Whether you run a standard motorcycle, or a tuned sportbike, 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.
What does it mean to jet a carburetor?
In simple terms jetting your dirt bike’s carburetor is determining the proper air-to-fuel ratio the engine receives. Running the correct ratio of fuel and air makes your dirt bike run optimally. Installing jets of different sizes helps increase/decrease the fuel/air ration depending on what your bike requires.
How do you tell if a carburetor is rich or lean?
If the insulator near the plug tip is a nice light tan colour then it’s running approximately correct at that load/rpm. If they’re white then it’s running lean, if they’re a dark brown or worse colour then it’s running rich.
What does a Stage 2 jet kit do?
Stage 2 kits are designed for applications where individual filters cannot be installed and for applications where airbox modification improves the engine’s performance. In most cases power increases of approximately 8% can be achieved. Maximizes carburetor performance. Includes step-by-step instructions.
What is a Stage 7 jet kit?
Stage 7 kits are designed to optimize jetting for a given tuning specification or racing conditions. Maximizes carburetor performance.
What comes in a Dynojet jet kit?
- Carb Jet Kits.
- Fuel Injectors.
- Charge Tubes.
- Fuel Pumps.
How much is a dyno kit?
A dynamometer, or “dyno” as they’re called by you and I, is a device for measuring force, moment of force (torque), or power. In the automotive world, they’re used to precisely calculate the power produced by a vehicle’s engine at the wheels. A stand-alone dyno setup can cost more than $50,000.
Are jet kits universal?
Yes you can. As long as they are the same style of Keihin jets.
How hard is it to Rejet a carburetor?
Rejetting your carburetor can be a pain if you can’t seem to get the right size jets. But it’s definitely not a very difficult procedure and it can really help the performance of your motorcycle.
What happens if main jet is too big?
For example, using too large of a main jet will cause more fuel to enter the combustion chamber than it can efficiently burn. This will result in a “sputter” at full throttle. It could best be described as a rapid misfire.
What happens if main jet is too small?
Be careful: most engine jams occur when the main jet is too small. A lean fuel/air mixture will cause the engine to overheat fast.