main jet

简明释义

主喷嘴

英英释义

例句

1.To fine-tune the engine, I need to check the Main Jet size.

为了微调发动机，我需要检查一下主喷嘴的尺寸。

2.If the Main Jet is clogged, the motorcycle may not start properly.

如果主喷嘴被堵塞，摩托车可能无法正常启动。

3.The Main Jet plays a crucial role in the carburetor's efficiency.

在化油器的效率中，主喷嘴起着至关重要的作用。

4.He replaced the Main Jet with a larger one for better fuel flow.

他用一个更大的主喷嘴替换了旧的，以获得更好的燃油流动。

5.The mechanic adjusted the Main Jet to improve the engine's performance.

机械师调整了主喷嘴以提高发动机的性能。

作文

In the world of motorbikes and performance vehicles, understanding how the engine operates is crucial for any enthusiast. One of the key components that play a significant role in the engine's performance is the carburetor, particularly its main jet. The main jet is a vital part of the fuel delivery system, responsible for regulating the amount of fuel that enters the engine at higher throttle positions. When a rider accelerates, the demand for fuel increases, and the main jet ensures that the engine receives the right mixture of air and fuel to perform optimally.The main jet works in conjunction with other jets in the carburetor, such as the pilot jet and the needle jet. While the pilot jet manages fuel flow at lower throttle openings, the main jet takes over when the throttle is wide open. This means that tuning the main jet is essential for achieving the desired performance characteristics of the vehicle. A correctly sized main jet allows the engine to run smoothly, providing sufficient power without running too rich or too lean, which can lead to engine damage.For those who are interested in modifying their bikes for better performance, changing the main jet is often one of the first steps taken. Riders may choose to increase the size of the main jet to allow more fuel into the engine, which can enhance power output, especially in modified engines that require more fuel due to increased airflow from aftermarket parts like exhaust systems and intake manifolds.However, it is important to note that simply increasing the size of the main jet isn't always the best solution. Tuning involves finding the right balance between air and fuel. If the main jet is too large, the engine can run excessively rich, leading to poor fuel economy, fouled spark plugs, and potential long-term damage. Conversely, if it is too small, the engine may run lean, causing overheating and severe engine damage.To properly tune the main jet, riders often rely on a process called plug reading. This involves examining the color and condition of the spark plugs after running the bike. A properly tuned engine will show a tan or light brown color on the spark plug, indicating the ideal air-fuel mixture. If the spark plug appears black, it suggests that the main jet is too large, while a white or blistered appearance indicates that it is too small.In conclusion, the main jet is a critical component in the carburetor of any performance vehicle. Understanding its function and how it interacts with other elements of the fuel system is essential for anyone looking to optimize their engine's performance. Whether you are a casual rider or a serious enthusiast, paying attention to the main jet can make a significant difference in how your vehicle performs on the road or track. Proper tuning and adjustments to the main jet can lead to enhanced performance, better fuel efficiency, and ultimately a more enjoyable riding experience.

在摩托车和性能车辆的世界中，理解发动机的运作对于任何爱好者来说都是至关重要的。一个在发动机性能中起着重要作用的关键组件是化油器，尤其是它的主喷嘴。主喷嘴是燃料输送系统中的一个重要部分，负责调节在较高油门位置进入发动机的燃料量。当骑手加速时，对燃料的需求增加，主喷嘴确保发动机接收到合适的空气和燃料混合物，以实现最佳性能。主喷嘴与化油器中的其他喷嘴（如引导喷嘴和针喷嘴）协同工作。当油门开启较小的时候，引导喷嘴管理燃料流动，而当油门完全打开时，主喷嘴接管。这意味着调校主喷嘴对于实现车辆所需的性能特征至关重要。合适尺寸的主喷嘴使发动机运行平稳，提供足够的动力，而不会过于丰富或过于稀薄，这可能导致发动机损坏。对于那些希望通过改装摩托车提高性能的人来说，更换主喷嘴通常是采取的第一步。骑手可能选择增大主喷嘴的尺寸，以允许更多的燃料进入发动机，这可以增强功率输出，特别是在由于增加了来自后市场部件（如排气系统和进气歧管）的气流而需要更多燃料的改装发动机中。然而，值得注意的是，简单地增大主喷嘴的尺寸并不总是最佳解决方案。调校涉及找到空气和燃料之间的正确平衡。如果主喷嘴太大，发动机可能会运行得过于丰富，导致糟糕的燃油经济性、火花塞积碳以及潜在的长期损坏。相反，如果它太小，发动机可能会运行得过于稀薄，导致过热和严重的发动机损坏。为了正确调校主喷嘴，骑手通常依赖于一种称为火花塞阅读的过程。这涉及在骑行后检查火花塞的颜色和状况。调校得当的发动机会在火花塞上显示出淡棕色或浅棕色，表明理想的空气燃料混合物。如果火花塞呈黑色，说明主喷嘴太大；如果呈白色或有起泡现象，说明它太小。总之，主喷嘴是任何性能车辆化油器中的关键组件。理解其功能及其与燃料系统其他元素的相互作用，对于任何希望优化发动机性能的人来说都是至关重要的。无论你是休闲骑手还是严肃爱好者，关注主喷嘴都能对你的车辆在公路或赛道上的表现产生重大影响。对主喷嘴进行适当的调校和调整，可以提高性能、更好的燃油效率，并最终带来更愉悦的骑行体验。