Why can't the motorcycle throttle up?

1 Answers
StMaya
07/30/25 7:46am
The reasons why a motorcycle can't throttle up are as follows: 1. Lean air-fuel mixture: There are many causes for a lean mixture, mainly including: the fuel needle adjusted too low; the fuel level set too low; partial blockage of the main jet; loose carburetor connection causing air leaks; air filter not installed; insufficient fuel supply from the tank fuel switch. 2. Poor crankshaft case sealing in a two-stroke engine: failure of the crankshaft oil seal on the generator side causing air leaks; leakage at the crankshaft case seam joint; air leaks at the joint between the crankshaft case and cylinder or incorrect piston installation direction. 3. Reed valve issues in a two-stroke engine: damaged reed valve; reverse installation of the rotary valve, causing carburetor backfire.
Was this review help?
13
0
Share
More Forum Discussions

What Are the Tips for Balancing an Electric Bike?

Keep the bike upright, gradually start the throttle, but ensure the bike has sufficient power to move. If the throttle is too low, the bike can easily wobble, making it difficult to maintain balance. When practicing turning, master the transition of the throttle and adjust the speed appropriately. In case of an emergency, pull the emergency brake handle. An electric bicycle refers to a personal transportation device that integrates mechanical and electrical components, based on a regular bicycle, equipped with a motor, controller, battery, throttle handle, brake handle, and display instrument system, using the battery as an auxiliary power source.
9
1
Share

How to Keep the Same License Plate When Changing Cars?

Method for keeping the same license plate when changing cars: Follow the process for canceling the registration of a motor vehicle to complete the scrapping and deregistration of the original vehicle. Within six months after the vehicle is scrapped and deregistered, submit an application to retain the license plate, along with the scrapping certificate of the original vehicle and the registration documents of the vehicle corresponding to the license plate, to the vehicle management office. The vehicle management office will review the documents. Eligible owners will have their applications accepted, the original license plate recorded, and a temporary license plate printed and issued to the vehicle owner. To apply for the use of the original motor vehicle license plate number, the following conditions must be met: 1. The application must be submitted within six months after the transfer or cancellation of registration; 2. The vehicle owner must have owned the original vehicle for more than three years; 3. All traffic violations and accidents involving the original vehicle must be resolved.
9
4
Share

How to Transfer ETC from Old Car to New Car?

The specific steps to transfer ETC from an old car to a new one: 1. Bring the vehicle license and ID card, fill out a change form. There is a button on the back of the ETC device—pressing it will pop it out, rendering the device inactive. 2. Re-match at the purchase location, go to the ETC customer service to update the data. If selling or changing cars, deregister first. 3. Bring the ETC card and OBU device to the ETC service center for removal. Use the removal receipt issued by the center to cancel the contract with the bank. 4. The old license plate must be under your name and used for at least three years. Complete the vehicle transfer and deregistration procedures for the old car, then register the new car with an external inspection. 5. Apply to use the original vehicle license plate and submit it to the processing officer. Note: The name and ID number on the new car invoice must match those of the old car.
8
0
Share

What are the requirements for upgrading from a C1 to an A2 driver's license?

A2 driver's license cannot be obtained directly through initial application; it can only be acquired through license upgrading. The conditions for upgrading are as follows: The applicant must hold a C license for more than three years without accumulating 12 penalty points in the previous two cycles, or hold an A3 or B2 license for more than one year without accumulating 12 penalty points in the previous cycle, to upgrade to a B1 license. After holding a B1 license for more than three years without accumulating 12 penalty points in the previous two cycles, or holding an A1 license for more than one year without accumulating 12 penalty points in the previous cycle, the applicant can upgrade to an A2 license. Physical requirements for upgrading to a B1 license: Age: Between 21 and 50 years old; Height: At least 150 cm; Vision: Uncorrected or corrected visual acuity of at least 5.0 on the logarithmic visual acuity chart for both eyes; Hearing: Able to distinguish the direction of sound sources with each ear at a distance of 50 cm from a tuning fork; Upper limbs: Both thumbs must be intact, and each hand must have at least three other fingers intact, with normal limb and finger movement functions; Lower limbs: Both lower limbs must be intact with normal movement functions, and the length difference should not exceed 5 cm. C1 driver's license: The C1 driver's license is a type of motor vehicle driver's license. It permits driving small and mini passenger vehicles, light and mini cargo vehicles, and light, small, and mini special-purpose vehicles. Small passenger vehicles can carry up to 9 people. Age requirements for application: The minimum age for a C1 driver's license is 18 years old, with no upper age limit. However, applicants aged 70 or older must pass tests on memory, judgment, and reaction abilities.
8
2
Share

What are the penalties for driving a scrapped vehicle on the road?

If caught driving a scrapped vehicle on the road, the driver will face fines, revocation of their driver's license, and confiscation of the scrapped vehicle. According to relevant regulations: 1. The state implements a mandatory vehicle scrapping system, with different scrapping standards based on the safety and technical conditions of the vehicle and its intended use; 2. Vehicles that should be scrapped must promptly undergo deregistration procedures; 3. Vehicles that have reached scrapping standards are not allowed on the road; 4. Large scrapped buses, trucks, and other commercial vehicles must be dismantled under the supervision of the traffic management authorities; 5. The traffic management authorities will confiscate and forcibly scrap any assembled or scrapped vehicles found driving on the road.
17
1
Share

Is Dual Clutch Manual or Automatic?

Dual clutch is automatic. Automatic transmissions include: traditional automatic transmissions, CVT transmissions, and dual clutch transmissions. Any transmission that does not require manual operation and completes gear shifting automatically is collectively referred to as an automatic transmission. Car transmissions can be divided into manual transmissions and automatic transmissions, with the latter further categorized into AT automatic transmissions, AMT semi-automatic transmissions, DTC dual clutch transmissions, and CVT continuously variable transmissions. Throughout the process from starting the car to normal driving, the driver can operate the clutch as needed to temporarily separate or gradually engage the engine and the drivetrain, thereby cutting off or transmitting the power output from the engine to the drivetrain. Its function is to allow the engine and the transmission to gradually engage, ensuring a smooth start; temporarily disconnect the engine from the transmission to facilitate gear shifting and reduce impact during shifting; and act as a separator during emergency braking to prevent overloading of the transmission and other drivetrain components, thus providing a certain level of protection.
12
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.