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What Causes Motorcycle Idle Instability and Stalling?

1 Answers
EleanorDella
07/30/25 1:27am
The reason for motorcycle idle instability and stalling is excessive idle speed. Effects and solutions for low idle speed: Excessive idle speed makes ignition and starting difficult. Generally, a motorcycle engine can ignite at over 200 RPM, meaning it has already started but stalls due to the idle speed being too low to stabilize. Slightly increasing the idle speed can solve the problem. Reasons for stalling during gear shifting: Stalling can also occur during gear shifting, which is another sign of low idle speed. Of course, some chain-driven engines have a significant difference between cold and hot idle speeds. For example, the idle speed may be only 1,200 RPM when cold but exceed 2,000 RPM when hot, causing many people to hesitate to adjust it slightly higher. This is also one reason why consumers prefer pushrod engines due to the poor performance of domestic chain-driven engines.
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What is the original spark plug model for the Haval H6?

Haval H6's original spark plug uses the Champion RC8PYCBX single platinum. Spark plugs are installed on the side or top of the engine. In the early days, spark plugs were connected to the distributor via ignition cables, but over the past decade or so, engines in small cars have mostly been modified to connect the ignition coil directly to the spark plug. If the spark plug is damaged, it can directly cause various issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant problem is difficulty in ignition, which affects the normal use of the vehicle. Severe erosion of the spark plug, blistering or damage at the top, melted or eroded electrodes all indicate that the spark plug is damaged and should be replaced. Spark plug replacement cycle: Under normal maintenance conditions, replacement is recommended after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine, so it is advisable to follow the user manual. Generally, platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers.
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Do previous failed attempts count when switching from C1 to C2?

Yes, switching from C1 to C2 only involves updating the information. The content and items of the exams remain the same, so the number of failed attempts will naturally be counted. If you still fail to pass the remaining exams after the conversion, the previous exam results will become invalid. Additional information: 1. Procedure for switching from C1 to C2: For the driving test, you need to apply in advance to the driving school and proceed with the subsequent steps after negotiation. Although switching from C1 to C2 is considered a downgrade, due to the higher price, fuel consumption, and maintenance costs of automatic transmission cars compared to manual transmission cars, an additional fee of 500-600 yuan is required for the conversion. 2. No need to retake exams when switching from C1 to C2: The content, items, and process of the exams for C1 and C2 are the same, and the operation for C2 is even simpler, so there is no need to retake the exams. For switching from C1 to C2, the driver's license is considered a downgrade, and the previously passed subject results will be retained in case of a downgrade.
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Which is Better: MT Transmission or AT Transmission?

MT transmission and AT transmission each have their own advantages. Below are the introductions and differences between MT transmission and AT transmission: 1. MT transmission: Advantages: Simple structure, lower manufacturing and maintenance costs, high reliability, fuel-efficient, and high transmission efficiency. Compared to other transmissions, manual transmission offers more driving pleasure, allowing drivers to freely control engine speed and gear shifting. Disadvantages: Compared to automatic transmission, manual transmission operation is more cumbersome, and gear shifting can be noticeably jerky. On congested urban roads, driving for extended periods can be tiring. Additionally, hill starts with a manual transmission can be a nightmare for beginners. 2. AT transmission: Advantages: AT transmission is easy to operate, providing a comfortable driving experience. It also features automatic speed and torque adjustment based on road conditions, making driving relatively easier and effectively preventing engine overspeed and overload. Among automatic transmissions, it has the highest reliability, mature technology, and relatively lower R&D costs. Disadvantages: Due to its complex mechanism and heavier weight, vehicles equipped with AT transmission are relatively more expensive. The precision and high technical content of AT transmission make repairs more complicated. Additionally, AT transmission has relatively lower transmission efficiency and higher fuel consumption.
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What is the actual fuel consumption of the Changan CS75?

The actual fuel consumption of the Changan CS75 is 6.6 to 7.0L/100km. Additional information: Methods to reduce fuel consumption are as follows: 1. Regular maintenance: Regular maintenance can reduce the failure rate of the car and also lower fuel consumption. Maintenance includes regularly replacing parts such as spark plugs, oil filters, brake fluid, radiator coolant, air filters, power steering fluid, and transmission oil. Keeping the vehicle in optimal condition helps reduce fuel consumption. 2. Avoid heavy acceleration: Heavy acceleration only shortens driving time by 4%, but increases fuel consumption by 37%-40%. On typical urban roads, the speed is usually maintained at 50 km/h, with engine RPM generally around 2000-2500. On highways, the speed is usually between 90-110 km/h. For every 10 km/h increase in speed, fuel consumption increases by 10%. Avoid heavy acceleration as RPM is the biggest factor affecting fuel consumption. 3. Reduce weight: For every 100KG increase in vehicle weight, fuel consumption increases by 4%~5%. 4. Maintain proper tire pressure: Checking tire pressure not only benefits fuel consumption but also ensures driving safety. Develop a habit of checking tire pressure daily. Generally, the front tire pressure should be 2.2-2.3, and the rear tire pressure should be 2.4-2.5.
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What Maintenance Does a New Car Need at 20,000 Kilometers?

New car maintenance at 20,000 kilometers requires replacing the oil filter, fuel filter, air filter, and inspecting the car's brakes. Here is a partial introduction about new car maintenance: 1. Oil Filter: Replace the oil filter and fuel filter. This can prevent impurities from mixing into the engine during use and avoid oil line blockages. Generally, semi-synthetic oil should be changed every 5,000-8,000 kilometers, synthetic oil every 8,000-10,000 kilometers, and mineral oil should not exceed 5,000 kilometers. 2. Air Filter: Replace the air filter if it wasn't changed during the 10,000-kilometer maintenance. At 20,000 kilometers, it must be replaced. The air filter's function is to block dust particles from being sucked into the engine during the intake process. If it was replaced at 10,000 kilometers, it can be cleaned. 3. Brake Pads: Inspect the car's brake pads to see if they are severely worn or contaminated with oil. Brake pads are generally replaced every 30,000-50,000 kilometers, but at 20,000 kilometers, they should be checked. Ask the mechanic how much longer they can be used. If the brakes fail, it can lead to serious consequences and is extremely unsafe.
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What is the maximum speed of an 800W motor with a 1000A controller?

Electric vehicles with 800W motors generally have a speed range of 35km/h to 40km/h, which is a speed limit set by manufacturers to ensure battery life. Typically, 60V electric vehicles are limited to speeds below 35km/h, while 72V electric vehicles are limited to speeds below 40km/h. By removing the voltage limit of the controller and increasing the current, the motor's speed can be increased. After removing the speed limit, the maximum speed can reach around 50km/h. Additional content, precautions: 1. Charging: Avoid charging for too long. In summer, high temperatures increase the risk of battery thermal runaway. It is best to charge for 6-8 hours. If the battery is not used for a long time, it is recommended to recharge it every two months to prevent irreversible sulfation due to prolonged discharge, which can kill the battery. After six months to a year of use, it is advisable to add supplementary fluid to the battery to extend its lifespan. 2. Pay attention to riding with or without brakes: Riding with brakes engaged causes the motor to heat up, leading to demagnetization of the magnets, resulting in reduced power and shorter battery life. If the motor makes noise, repair it promptly and check the bearings to prevent steel particles from rolling out and cutting the coils, which can render the motor useless.
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