Does gasoline evaporate in summer?

Is a physical condition certificate required for driver's license renewal?

According to Article 57 of the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses', a physical condition certificate is required for driver's license renewal. Materials required for driver's license renewal: The motor vehicle driver should apply for renewal at the vehicle management office of the driver's license issuing location or elsewhere within 90 days before the expiration of the current driver's license. When applying, the driver needs to fill out an application form, provide identity proof, and the current driver's license. Level of the physical condition certificate required: A physical condition certificate issued by a county-level or higher medical institution, or a military medical institution at or above the regimental level. Therefore, as mentioned in the description, a physical condition certificate is required for renewal. Generally, there are dedicated medical examination facilities near the vehicle management office for convenience. For specific details, it is advisable to consult at the service hall of the vehicle management office.

18

1

Share

What Causes the Little Princess Motor to Slip?

The reasons for the Little Princess motor slipping are as follows: Insufficient Battery Power: Try borrowing a friend's motorcycle battery to test. If the issue resolves, it's a battery problem. You can either replace it with a new one or take it to a repair shop for charging. Gear Damage: Remove the cover on the kickstart side and inspect the drive plate teeth, motor shaft teeth, and motor head teeth for any damage. Examine carefully, especially for wear on the motor teeth. It's best to remove the motor head for a thorough inspection. Replace if damaged. Weather Conditions: In cold weather, the viscosity of the lubricating oil increases, leading to higher resistance during startup. Theoretically, this could cause the motor to rotate slower during startup. However, a well-charged, good-quality battery should not exhibit this issue.

12

3

Share

Is it necessary to have a fire extinguisher in a family sedan?

It is necessary to have a fire extinguisher in a sedan. When driving in hot weather, experiencing car malfunctions, or encountering short circuits, the risk of car self-ignition increases significantly. In such situations, having a fire extinguisher in the car allows for quick fire suppression and ensures personal safety. Dry Powder Fire Extinguisher: For cars, dry powder fire extinguishers and water-based fire extinguishers are recommended. Dry powder fire extinguishers are fast and effective in extinguishing fires, affordable, and widely applicable. Water-based fire extinguishers are further divided into water-based clean water extinguishers, water-based foam extinguishers, and water-based mist extinguishers, featuring advantages such as no dust, suffocation prevention, excellent fire suppression, and being non-toxic and environmentally friendly. Water Mist Fire Extinguisher: For electrical fires, water-based mist extinguishers are more suitable; for fuel fires, water-based foam extinguishers are preferable.

14

1

Share

Does a Four-Cylinder Engine Need Cylinder Replacement if One Cylinder Gets Water Ingress?

It depends on the extent of engine damage. From a repair perspective, the engine needs to be disassembled for inspection. If water enters the engine block, severe cases may cause damage to the engine block, in which case the middle cylinder needs to be replaced. Introduction to Cylinders: The cylindrical chamber inside the engine, where a piston is driven by the pressure or expansion force of the working fluid, or similar but non-cylindrical parts in certain special types of engines. Types of Cylinders: In pneumatic transmission, cylinders are pneumatic actuators that convert the pressure energy of compressed gas into mechanical energy. Cylinders can be divided into two categories: those performing reciprocating linear motion and those performing reciprocating swinging motion. Reciprocating linear motion cylinders can further be classified into four types: single-acting, double-acting, diaphragm-type, and impact cylinders.

6

0

Share

Is the Jog i compliant with China III standard equipped with electronic fuel injection?

Yamaha Jog i scooter adopts a closed-loop electronic fuel injection system. According to relevant environmental protection technical requirements, motorcycles meeting China III standard and subsequent standards must employ closed-loop electronic fuel injection technology. Principle of electronic fuel injection system: The Electronic Fuel Injection (EFI) system uses the Electronic Control Unit (ECU) as its control center. Various sensors installed on the engine measure different operating parameters, and based on pre-programmed control algorithms in the ECU, precisely control the fuel injectors' fuel delivery quantity. This ensures the engine obtains the optimal air-fuel ratio combustible mixture under various operating conditions. The electronically controlled fuel injection systems used in different vehicles often exhibit significant structural differences and possess distinct characteristics in control principles and operational processes. Operating conditions of electronic fuel injection system: The cylinder block, cylinder head, crank-connecting rod mechanism, valve train, intake and exhaust systems, fuel supply system, and electronic control system work in coordination to directly complete the working cycle. Although the lubrication system and cooling system don't directly participate in the working cycle, they are indispensable for long-term normal operation. The starting device provides initial conditions for transitioning from static to dynamic state. During usage, their working conditions must be given sufficient attention, as failure to maintain normal operation cannot be guaranteed and may even cause severe damage to components.

5

4

Share

Will paper in the exhaust pipe catch fire?

Generally, it won't, unless under special circumstances, such as the paper being right on the exhaust manifold or at the turbocharged exhaust position, where there is a chance of burning. Introduction to the exhaust pipe: The exhaust pipe is part of the engine's exhaust system. The exhaust system mainly includes the exhaust manifold, exhaust pipe, and muffler. Usually, the three-way catalytic converter for controlling engine pollutant emissions is also installed in the exhaust system. The exhaust pipe generally includes the front exhaust pipe and the rear exhaust pipe. Semi-backpressure pipe: This type of pipe has lower backpressure, and the smoothness of exhaust is better than that of a backpressure pipe. Simply put, it is between a backpressure pipe and a straight pipe, with moderate backpressure to achieve starting torque. The exhaust smoothness is better than that of a backpressure pipe, and of course, the mid-to-high speed torque is also greater than that of a backpressure pipe.

18

0

Share

Does gasoline evaporate in summer?

Is a physical condition certificate required for driver's license renewal?

What Causes the Little Princess Motor to Slip?

Is it necessary to have a fire extinguisher in a family sedan?

Does a Four-Cylinder Engine Need Cylinder Replacement if One Cylinder Gets Water Ingress?

Is the Jog i compliant with China III standard equipped with electronic fuel injection?

Will paper in the exhaust pipe catch fire?

Can I Replace Just Two Tires on a Small Car?

Is the Wuji Motorcycle Domestic or Joint Venture?

What does in-store dual warranty mean?

Where is the thermostat located on the Hafei Lobo?