What transmission does the Haval H2 use?

What are the structures of a motorcycle carburetor?

A simple carburetor consists of three parts: upper, middle, and lower. The upper part includes the air intake and float chamber, the middle part has the venturi, jet, and spray tube, and the lower part includes the throttle valve. Function of the carburetor: The carburetor mixes air and gasoline in the correct proportion to provide combustion power for the cylinder. The carburetor has a throttle piston that moves up and down to control the amount of air intake. A needle valve passes through the main fuel jet in the middle of the throttle piston. The up and down movement of the throttle piston simultaneously drives the needle valve to control the fuel quantity. When the throttle is applied, the throttle cable drives this throttle piston to move up and down, providing combustion power to the cylinder and controlling the engine speed. Working process of the carburetor: The carburetor is a mechanical device that mixes a certain proportion of gasoline with air under the vacuum generated by the engine's operation. Essentially, it atomizes the gasoline and mixes it with air.

6

0

Share

What is the appropriate torque for a motorcycle oil drain bolt?

Motorcycle oil drain bolt torque is generally 22N-27N for cast iron oil pans and 15N-22N for all-aluminum oil pans. Motorcycle oil draining method: Open the waste oil pipe screw at the bottom of the carburetor, pull out the oil pipe connected to the carburetor, connect a section of pipe, and use a bottle to catch the oil. Precautions for motorcycle oil draining: When draining gasoline from the fuel tank, it should be stored in a sealed container. Otherwise, the "light components" in the gasoline will decrease over time, causing difficulty or failure in starting the motorcycle. At the same time, the gasoline in the carburetor should also be completely drained to prevent impurities in the gasoline from clogging the carburetor's metering holes, oil passages, and other components.

7

5

Share

Will modifying a motorcycle with a dog bone affect handling?

Modifying a motorcycle with a dog bone will not affect handling. Installing a dog bone can help preserve the vehicle's original performance. Function of a motorcycle dog bone: The purpose of a motorcycle dog bone is to alter the length of one or more connecting rods to reduce the shock absorber, thereby lowering the seat height. Installing a dog bone can significantly preserve the motorcycle's original performance. Working principle of a motorcycle dog bone: The dog bone modification on a motorcycle's suspension is primarily for psychological comfort, especially for riders unfamiliar with handling or who don't understand handling dynamics. Therefore, whether to lower the bike or not doesn't matter much—once skills improve, the dog bone can be removed without the hassle of lowering the front end. If the rear is lowered, the steering head angle will increase, enhancing stability but reducing agility. If the rider doesn't feel discomfort, the front fork height can remain unchanged, as lowering it too much may affect ground clearance and risk hitting the oil pan.

20

5

Share

Can a motorcycle still undergo annual inspection if it hasn't been inspected for a long time?

A motorcycle can still undergo annual inspection if its driving license has expired for half a year within the usage period. Annual inspection process: Bring relevant documents and materials; the acceptance window will review the materials and enter relevant information into the remote inspection system; if the vehicle has unresolved violations, they must be handled first, and the inspection can only proceed after the violations are cleared; ride the vehicle to the off-line inspection area for off-line inspection, then proceed to the inspection workshop for on-line inspection; after passing the inspection, submit the inspection report and other materials to the inspection officer for vehicle inspection; after all inspections are passed, pay the inspection fee, have the deputy certificate of the driving license stamped, and receive the inspection compliance mark. Annual inspection time: For motorcycles used within 4 years, inspect once every 2 years; for those used over 4 years, inspect once every year. The annual inspection time for motor vehicles is determined based on the initial registration date of the new vehicle. For example, if the initial registration date on the motor vehicle driving license is June 2007, then the annual inspection time is every June.

13

4

Share

Is There a Purchase Tax for Motorcycles?

Motorcycles themselves do not require a purchase tax, but the purchase tax must be paid when registering the motorcycle; failure to pay will prevent registration. Calculation Method for Motorcycle Purchase Tax: The applicable tax rate for motorcycle purchase tax is the same as for cars, calculated at a rate of 10%. The method is to multiply the taxable price by the purchase tax rate of 10%. Purchase tax = (Vehicle price ÷ (1 + 17%)) × purchase tax rate. For imported new vehicles, the taxable price is calculated as: Customs duty-paid price + Customs duty + Consumption tax. New Purchase Tax Law Provisions: The purchase tax for vehicles is levied at a standard rate of 10%. The taxable price is based on the price paid by the buyer to the seller, including all additional fees, excluding VAT. Generally, the invoices for vehicles sold in the market include VAT, so when calculating the purchase tax, 17% VAT must first be deducted.

18

4

Share

What are the suitable motorcycle oil grades for summer?

During summer when temperatures are higher, motorcycles are better suited for using higher viscosity engine oils such as 0W40 or 15W40 grade oils. If summer temperatures aren't extremely high, 15W30 grade oil can also be used. The number after W indicates higher temperature resistance (larger number means better high-temperature performance), while the number before W indicates better low-temperature performance (smaller number means better cold-weather performance). Motorcycle oil grades refer to: The smaller the number before W, the better the low-temperature performance; the larger the number after W, the better the high-temperature performance. Except for 5W30, other grades can be used in summer or spring/autumn; 5W30 is winter-grade oil, suitable for temperatures below -20°C. Motorcycle oil is the abbreviated term for motorcycle engine lubricating oil. Motorcycle lubricants typically include engine oil (referred to as motorcycle oil), gear oil, and shock absorber oil. Functions of motorcycle oil: Lubrication and friction reduction: During engine operation, friction occurs between pistons and cylinders, main shafts and bearings. Excessive friction may cause seizure while accelerating component wear. Oil film between friction surfaces prevents rapid wear. A sufficiently thick oil film separates moving parts, reducing engine friction loss and extending engine life. Cooling: Beyond air-cooling and water-cooling systems, oil also provides cooling. High operating temperatures are dissipated as oil carries heat back to the oil tank before releasing it into the air. Vibration damping: Operating engines create impact forces between components. Oil distributes localized impacts, reducing vibration and shock loads on parts, thereby slowing wear and aging. Sealing: Oil forms a seal between piston rings and pistons, reducing gas leakage and preventing contaminant entry. Rust and corrosion prevention: Lubricant forms protective films on metal surfaces, shielding against water, air, acids, and harmful gases to prevent corrosion and rust. Cleaning: Quality oil circulates carbon deposits, sludge, and metal particles back to the oil pan, cleaning engine components through continuous flow.

14

0

Share

What transmission does the Haval H2 use?

What are the structures of a motorcycle carburetor?

What is the appropriate torque for a motorcycle oil drain bolt?

Will modifying a motorcycle with a dog bone affect handling?

Can a motorcycle still undergo annual inspection if it hasn't been inspected for a long time?

Is There a Purchase Tax for Motorcycles?

What are the suitable motorcycle oil grades for summer?

What are the speed limit regulations for urban lanes?

What is the capacity of a plastic oil drum in liters?

What are the requirements for adding a driving license?

Can I turn on the air conditioning immediately after starting the car in summer?