When it comes to motorcycles, ensuring proper fuel flow is crucial for optimal performance. One of the settings that plays a role in this is the PRI (Priming) setting. But what exactly is this setting and what is its purpose?
What is the PRI Setting?
The PRI setting, often found on fuel injection systems, controls the fuel supply to the engine. It’s designed to address two situations:
- Fuel draining: If the motorcycle has been sitting for a while, fuel in the float bowls may evaporate, leaving the engine with insufficient fuel.
- Long fuel drain: In situations where the fuel system has been drained completely, the PRI setting ensures that fuel can be quickly delivered to the engine when it’s restarted.
How does it work?
The PRI setting essentially allows fuel to flow from the fuel tank to the carburetors regardless of whether the engine is running. This ensures that there’s always fuel available in the engine, even after it has been drained or left for a period of time.
When should the PRI Setting be used?
The PRI setting should only be used under the following conditions:
- When the motorcycle has been drained of fuel.
- When the motorcycle has been sitting for a prolonged period of time, leading to fuel evaporation from the float bowls.
Consequences of leaving the PRI Setting on permanently:
Leaving the PRI setting enabled unnecessarily can have negative consequences, such as:
- Increased fuel consumption.
- Rich fuel-air mixture, leading to potential engine damage.
Conclusion
The PRI setting plays a vital role in ensuring fuel availability for motorcycles in specific situations. Understanding its purpose and when to use it is crucial for optimal motorcycle performance.
