Nationally Permitted Vehicle Modification Scope?

Why is there oil in the motorcycle air filter?

If the motorcycle air filter is a sponge foam filter element, it is normal to have a small amount of engine oil on it. Here is some relevant information about motorcycle air filters: 1. The significance of the air filter: Air passes through the filter and enters the cylinder through the intake valve (throttle), enabling the gasoline to burn. The intake valve opens and closes in synchronization with the piston movement. Therefore, the oil in the filter is the engine oil ejected through the intake valve during piston movement. 2. Excessive oil is abnormal: If there is too much oil, it may be because the motorcycle has been tipped over, causing the engine oil to flow back into the air filter through the breather tube. Additionally, check if there is too much oil in the engine, if the cylinder gasket is damaged, or if pressure is blowing oil from the engine breather tube into the air filter. For scooters, some cylinder head covers may have issues that can also cause similar situations.

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How to wire a motorcycle without a key?

If it is an AC ignition system, you can start the engine by kick-starting after disconnecting the wiring from the key lock. If it is a DC ignition system, connect the red power wire to the power supply wire that provides electricity to the entire vehicle. Below are some relevant information about motorcycles: 1. Basic components: Consist of five parts - the engine, transmission system, running gear, steering, braking system, and electrical instrumentation; 2. Working principle: There are four-stroke engines and two-stroke engines. Four-stroke engines are widely used, meaning the piston completes four reciprocating movements for each ignition in the cylinder. Two-stroke engines require the piston to move up and down twice for each ignition by the spark plug. The intake process of a two-stroke engine is completely different from that of a four-stroke engine. A two-stroke engine undergoes two compressions, and the mixture first flows into the crankcase before entering the cylinder.

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What is the S gear?

S gear stands for Sport gear. When the car is in S gear (Sport mode), the transmission can shift freely, but the shifting timing is delayed, keeping the engine at high RPM for a longer period. This allows the car to maintain a low gear and high RPM for an extended duration, resulting in greater torque output and acceleration. Below is an introduction to the gears of an automatic transmission car: 1. L gear: Low gear, which limits speed. When engaged during uphill driving, it maintains a state of high RPM and low gear. 2. S gear: Sport mode, where the transmission can shift freely but with delayed timing, keeping the engine at high RPM for a longer period, allowing the car to maintain low gear and high RPM. 3. D gear: Drive gear, used for forward movement of the car. 4. N gear: Neutral gear, used during brief stops. 5. P gear: Park gear, used when parking; engaging this gear stops the car's braking system, preventing it from rolling. 6. R gear: Reverse gear, used when backing up. However, R gear should only be engaged when the vehicle is completely stopped. Engaging R gear while the car is moving slowly can cause severe damage to the transmission.

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What is the fuel consumption of the 2021 Malibu XL 1.5T?

The fuel consumption of the 2021 Malibu XL 1.5T is 7.3 liters per 100 kilometers. Here are some methods to reduce fuel consumption: 1. Check the air conditioning system in summer: Air conditioning malfunctions are a significant cause of high fuel consumption. Poor cooling performance can lead to increased fan speed and lower temperature settings to achieve a comfortable cooling effect. 2. Frequent hard braking: Frequent hard braking is a primary reason for persistently high fuel consumption. While ensuring safe driving, make full use of the vehicle's inertia. 3. Avoid excessive air conditioning in small-displacement vehicles: For vehicles exposed to the sun, it is not advisable to turn on the air conditioning immediately upon entering. First, open the windows and set the fan to a higher speed without turning on the air conditioning to expel the hot air inside the car. Wait until the vehicle has cooled down moderately before turning on the air conditioning.

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What are the differences between Michelin Primacy LC and Primacy 4?

Here is an introduction to the differences between Michelin Primacy LC and Primacy 4: 1. Different product specifications: Michelin Primacy 4: The usual product specification is 215/55R17; Michelin Primacy LC: The usual product specification is 235/55R17. 2. Different speed ratings: Michelin Primacy 4: The speed rating is V (maximum 240 km/h); Michelin Primacy LC: The speed rating is H (maximum 210 km/h). 3. Different technical features: Michelin Primacy 4: The tread pattern adopts a variable pitch block design. Four longitudinal grooves divide the tread pattern into five blocks, with the middle three blocks having the same pattern. All the pattern blocks use a variable pitch design, which can disrupt noise during tire operation, playing a role in noise reduction; Michelin Primacy LC: The Primacy LC tire adopts the "Silent Rib" technology. Compared to the already noise-reducing Energy MXV8, it can effectively reduce tire noise by up to one decibel. At the same time, it can also reduce interference to human ears.

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How to Handle Violations for Not Wearing Seat Belts in the Back Seat?

According to the "Road Traffic Safety Law": On ordinary roads, passengers who do not wear seat belts will be fined 5 yuan; on highways, the fine is 20 yuan for not wearing a seat belt. Whether driving on ordinary roads or highways, seat belts should be worn, and rear-seat passengers also need to wear seat belts during high-speed driving. Below are precautions for driving on highways: 1. Check the car before entering the highway: Before driving on the highway, inspect the car's braking system and tire pressure/wear to avoid emergency braking failures. Both underinflated and overinflated tires are unsuitable for high-speed driving and can easily lead to blowouts, which can be fatal at high speeds. Therefore, thorough vehicle inspection is essential. 2. Wear seat belts: Seat belts should be worn whether driving on ordinary roads or highways, and rear-seat passengers must also wear them during high-speed driving. 3. Drive in the designated lane: Highways have clearly marked lanes for large vehicles, small vehicles, etc. After overtaking, promptly return to your lane and avoid occupying other lanes for extended periods. Additionally, emergency lanes should not be occupied without special reasons. 4. Maintain a safe speed and avoid speeding: The dangers of speeding are well-known, leading to irreversible consequences both locally and on highways. 5. Overtaking precautions: Exercise caution when overtaking on highways. Always use turn signals before overtaking and pass from the overtaking lane, avoiding the bad habit of overtaking from the right. After signaling, check the road conditions behind you before overtaking. When conditions permit, accelerate and maintain a lateral distance of about 1.5 meters from the vehicle ahead. Leave sufficient distance to merge back into the lane after overtaking to prevent rear-end collisions. 6. Maintain longitudinal distance between vehicles: Generally, on dry roads with good braking conditions, the distance (in meters) between vehicles should not be less than the speed (in km/h). For example, at 80 km/h, maintain at least 80 meters; at 100 km/h, maintain at least 100 meters. Always pay attention to roadside distance markers. In rain, fog, snow, or wet road conditions, double the distance. 7. Observe traffic signs: Always watch for roadside and overhead signs/markings while driving, and stay slightly to the right to avoid crossing the right lane divider, providing enough lateral space for overtaking vehicles. 8. Do not occupy emergency lanes during accidents: Traffic incidents are inevitable on highways. If other vehicles cause blockages, avoid occupying emergency lanes to ensure rescue vehicles can access the scene. 9. Avoid fatigue driving and take timely breaks: Fatigue driving is extremely dangerous on highways. When fatigued, reaction times slow, making it difficult to handle emergencies correctly.

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Nationally Permitted Vehicle Modification Scope?

Why is there oil in the motorcycle air filter?

How to wire a motorcycle without a key?

What is the S gear?

What is the fuel consumption of the 2021 Malibu XL 1.5T?

What are the differences between Michelin Primacy LC and Primacy 4?

How to Handle Violations for Not Wearing Seat Belts in the Back Seat?

What to Do If You Lose Your Subject 1 Score Sheet?

How to Identify the National Emission Standard Mark on a Car?

How to Handle Traffic Violations Using Study Points?

How to Check if a Car is an Accident Vehicle?