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Zhejiang Benling: Your Professional Motorcycle Manufacturer!
 

Zhejiang Benling Motorcycle Manufacturing Co., Ltd. and its export company Taizhou Strength Good Motorcycle Co., Ltd. were established in 2020 and located in Taizhou City, Zhejiang Province, a well-known motorcycle manufacturing base in China. Our company covers an area of more than 80,000 square meters and a construction area of more than 36,000 square meters.

 

 
Our Advantages
 

 

Advanced Equipment

Benling Company has fully enclosed light-curing paint spraying lines, scientific and advanced assembly lines, etc., and also uses CNC vertical comprehensive machining centers, precision tools, etc. to ensure smooth and high-quality production of motorcycles and parts.

Broad Sales Market

Our products are long-lasting in South Asia, Southeast Asia, West Africa, Europe, the United States, the Middle East and other regions. They have a good reputation in the market and are deeply trusted by customers.

Complete Performance Testing

Precision testing equipment and instruments such as reflex CMM, dynamometer, engine chassis dynamometer, durability test bench, etc. can strictly inspect and control the performance and quality of motorcycles.

Scientific Production Line

We have passed ISO9000 certification and our manufacturing process complies with international quality management standards, ensuring product quality consistency and customer satisfaction.

What are Scooter Spare Parts?
 

Scooter spare parts refer to the components or accessories that can be used to replace or repair various parts of a scooter. Some common scooter spare parts include engine, electrical components, braking system components, suspension system components, wheels and tires, etc.

125cc 4 Stroke Scooter Engine

Types of Scooter Spare Parts

 

4 Stroke Scooter Engine
A 4-stroke engine is a common type of internal combustion engine. Most modern internal combustion engines are 4-stroke engines that run on gasoline or diesel fuel. 4-stroke engines provide a good balance of power, reliability and efficiency. When it comes to emissions, 4-strokes mechanically separate each event, reducing unburned fuel emissions. They also separate oil from fuel, which significantly reduces carbon monoxide emissions.

 

1.Advantages

 

Higher Torque

The torque generated in the engine is higher than other traditional engines with the same amount of fuel injected. The higher torque is beneficial in making a vehicle run smoother and with a higher power. The high torque is capable of providing faster vehicles with less vibration and noise.

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Longer Life 

The life of the 4-stroke engine is more due to the better lubrication and cooling system. It decreases the wear and tear of the engine cylinder and its various parts, which is comparatively more common in other variants. Also, the better dampening makes them more stable at higher speeds and power operations.

02

Fuel Efficiency

Due to the presence of valves, the intake and exhaust are facilitated with greater efficiency, and the fuel losses are controlled. Unlike 2-stroke, there is no scavenging in these engines, and there is only time intake of fuel during the four-cycle operation.

03

Less polluting

As the exhaust is better controlled, the fresh charge is only available for combustion. This makes this engine a better option with regard to environmental impacts. The other traditional vehicles like a steam engine and 2-stroke create more pollutants than the 4-stroke engine.

04

Separate Lubrication

For lubrication and cooling, there is no need to add lubricant oil to the fuel. It decreases the cost of oil, making it more economical, and the other lubrication techniques are more efficient to safeguard the internal parts from frictional damages. Also, the power losses are minimised due to better design and technology.

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2.Shock Absorbers
 

Shock absorbers and telescopic forks are essential components on Chassis of all two-wheeler classes. Both are safety-relevant components whose functionality should be checked regularly. As standard, telescopic forks and shock absorbers usually consist of a combination of spring and damper.

 

Advantages:
Adult 4 Stroke Sport Motorcycle 350cc
 

Advantages of Dual Shocks

Simply put, two shock absorbers do a better job of hauling load compared to a single setup. They are also tuned to be softly sprung, which enables them to absorb bumps slightly better, thus offering a supple ride. A dual-suspension setup is easier to manufacture and more cost-effective. Besides, it’s also easier to maintain.

 

Advantages of Mono Shocks

The use of a single shock means using a single valve, which exerts pressure equally unlike twin shocks. To add to this, the piston in a monoshock is much wider than the one found on twin-shock absorbers. In effect, monoshocks offer better and more precise damping, which results in better handling and stability. You’d mostly find a bike using a monoshock handle better than a twin-shock motorcycle.

Electric Motorcycle for Adults Street Legal
 
Main Components of Scooter Spare Parts

 

Shock absorbers vary in design and operation across different applications but share common components. Below are the key elements of a vehicle's shock absorber:

Mount

The mount secures the shock absorber to the vehicle body and suspension. It comprises upper and lower mounts of identical design, featuring a hollow surface allowing the insertion of bushings and bolts.

Bushing

Positioned on the mountings, bushings are typically made of rubber or urethane. They absorb vibrations and incorporate separate metal parts to minimise noise and wear, making them replaceable components.

Coil Spring

Not all shock absorbers include a coil spring. Those that do are known as coil-over-shock absorbers or spring coil shock absorbers. These shock absorbers resemble suspension struts, often leading to confusion between the two.

Piston and Piston Rod

The piston within the shock absorber contains openings or valves that regulate the flow of oil through passageways, coordinating with the movement of the shock absorber. The piston rod guides the piston's motion within the shock absorber cylinder.

Cylinder

Serving as the body of the shock absorber, the cylinder is a cylindrical tube containing compression oil and housing the piston that moves within.

Bolts

Bolts function as fasteners securing the shock absorber to the vehicle's body at one end and the suspension at the other. Proper torquing of these bolts is essential to prevent loosening during operation.

 

Working Principle of Scooter Spare Parts
 

The 4-stroke engine also referred to as a 4-cycle engine, powers an array of outdoor power equipment:

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Step 1: Intake Stroke

Air and fuel enter the small engine through the carburetor. It’s the job of the carburetor to supply a mixture of air and fuel that will allow for proper combustion. During the intake stroke, the intake valve between the carburetor and combustion chamber opens. This allows atmospheric pressure to force the air-fuel mixture into the cylinder bore as the piston moves downward.

Step 2: Compression Stroke

Just after the piston moves to the bottom of its travel (bottom dead center), the cylinder bore contains the maximum air-fuel mixture possible. The intake valve closes and the piston returns back up the cylinder bore. This is called the compression stroke of the 4-stroke engine process. The air-fuel mixture is compressed between the piston and cylinder head.

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Step 3: Power Stroke

When the piston reaches the top of its travel (top dead center), it will be at its optimum point to ignite the fuel to get maximize power to your outdoor power equipment. A very high voltage is created in the ignition coil. The spark plug enables this high voltage to be discharged into the combustion chamber. The heat created by the spark ignites the gases, creating rapidly expanding, super-heated gases that force the piston back down the cylinder bore. This is called the power stroke.

Step 4: Exhaust Stroke

When the piston reaches bottom dead center again, the exhaust valve opens. As the piston travels back up the cylinder bore, it forces the spent combustion gases through the exhaust valve and out of the exhaust systems. As the piston returns to top dead center, the exhaust valve closes and the intake valve opens and the 4-stroke engine process repeat. Ever repetition of the cycle requires two full rotations of the crankshaft, while the engine only creates power during one of the four strokes. To keep the machine running, it needs the small engine flywheel. The power stroke creates momentum that pushes the flywheel’s inertia keeps it and the crankshaft turning during the exhaust, intake and compression strokes.

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Maintenance Tips for Scooter Spare Parts
 

 

 

Check the Locking Screw Regularly:
If you notice that the suspension is stiff or loose, you should check the screws. Another sign that there is something wrong with the screws is hearing strange noises coming from them. Check the screws once a month to ensure they aren't loose and they haven't gotten tightened too tight. Due to riding, the suspension could become loose over some time but adjusting it is easy. Check to see if the screws are too loose or too tight. Some parts can get cracked or damaged if you don't check these monthly. Make slight adjustments with a universal kit or screwdriver and go for a short ride to ensure it is smooth. If the locking screws are too tight, you will know by how stiff the suspension feels on the bumps and if it is loose, you might lose your balance on turns or rough terrain. If the ride is still stiff, the spring might have to get replaced. This is not a simple task, and you may need a professional to do this for you effectively. The screws and the spring get removed. Read the manufacturer's manual to ensure you have the correct dimensions for the new spring. If you use one that is even slightly off in size, it won't fit.

 
 

Lubrication:
During a ride, the coil will move up and down multiple times. The part gets greased by the manufacturers to ensure it is well-lubricated. If you hear strange noises when you go over a bump, you will likely need to lubricate the shock absorber. When the suspension is dry, it can also damage the part.

 
 

Cleaning:
Especially the hydraulic shock absorber, if it is not cleaned in time after an off-road ride, dirt, and debris may scratch the oil seal, resulting in oil leakage. The oil leakage is irreversible, unlike hydraulic brakes, there is no way to replenish the oil. You can only replace a new hydraulic set, or use it as just a common spring shock absorber. So, after a long-term ride, please make sure to clean the debris and mud out. Use warm water and a lint-free soft cloth, or a soft brush. Please do not use solvents, degreasing agents, detergents and other chemicals, that may damage the shock absorbers and void the warranty.

 

 

Our Factory

 

Our factory not only has advanced production lines, assembly lines, and inspection lines but also provides customers with technical designs and solutions. Teams and engineers with more than ten years of experience can design and manufacture non-standard equipment or provide other special technical services.

 

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Ultimate FAQ Guide to Scooter Spare Parts
 
 

Q: What is the most important part of a scooter?

A: Brakes. The brakes are the most important part of an electric scooter because it helps the rider stay in control while traveling. There are different types of brakes but the most common are mechanical brakes and electronic brakes. Mechanical brakes are used to slow down.

Q: What is a 4-stroke scooter engine?

A: A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction.

Q: How do I know if my scooter is 2-stroke or 4-stroke?

A: The easiest way to identify a 4 stroke and 2 stroke engine just by looking at it is to see where the inlet goes to, that is, where the carburetor is attached. If it is attached to the cylinder block, it is a two stroke. If it is attached to the cylinder head, it is a four stroke.

Q: Is a 2-stroke or 4-stroke lighter?

A: A 2-stroke engine is considerably lighter than its equivalent 4-stroke counterpart. If you need a lightweight engine, then a 2-stroke engine is what you need. A four-stroke engine has more internal parts, which is part of the reason it is heavier.

Q: What are the strokes of a 4-cycle engine?

A: 4-stroke engines have four valves so that pistons can go through four events to complete one 4-stroke cycle. A piston motion, either upward or downward, is defined as an event. After these four events, the cycle is complete and ready to restart. The intake and exhaust valves regulate the air/fuel mixture that enters and exits the cylinders. During the 4-stroke cycle, the intake and exhaust camshafts open and close the intakes and exhausts at precise times.
1. Intake Stroke
Piston descends the cylinder bore from top dead center (TDC) to bottom dead center (BDC).
Intake valve is open and the exhaust valve is shut.
Downward motion of the piston creates a vacuum (i.e., negative air pressure), which draws the air/fuel mixture into the engine through the open intake valve.
2. Compression Stroke
Piston moves up the cylinder bore from BDC to TDC.
Intake and exhaust valves are both closed.
Upward motion of the piston compresses the air/fuel mixture in the combustion chamber.
3. Power Stroke
Spark plug fires and ignites the compressed air/fuel mixture just before the end of the compression (i.e., previous) stroke. This ignition/combustion forces the piston down the cylinder bore and rotates the crankshaft, propelling the vehicle forward.
Piston moves down the cylinder bore from TDC to BDC.
Intake and exhaust valves are both closed.
4. Exhaust Stroke
Piston moves up the cylinder bore from BDC to TDC. The momentum created by the power stroke keeps the crankshaft moving and the other three strokes going in sequence.
Intake valve is closed and the exhaust valve is open.
Final stroke pushes the spent gases and exhausts out of the cylinder. The cycle is now complete and the piston is ready to begin the intake stroke.

Q: What is the difference between 2-stroke and 4-stroke scooter engines?

A: Two-Stroke Bike Engines Two-stroke engines are simpler and lighter than four-stroke engines. They have fewer parts and require less maintenance, making them more affordable. Two-stroke engines generate power every time the piston moves up and down, which means they produce more power in a smaller engine capacity. However, two-stroke engines have a few disadvantages. First, they are not very fuel-efficient and tend to consume more oil than four-stroke engines. This results in more pollution and contributes to air deterioration. Second, they are not as reliable as four-stroke engines, and they have a shorter lifespan. Four-Stroke Bike Engines Four-stroke engines are more complex and heavier than two-stroke engines. They have more parts and require regular maintenance, making them slightly more expensive than two-stroke engines. However, four-stroke engines are more fuel-efficient and generate more torque at lower speeds, making them ideal for everyday use. Four-stroke engines have several advantages over two-stroke engines. Firstly, they are more fuel-efficient and eco-friendly. They generate less pollution and have lower emissions, making them a better choice for the environment. Secondly, they are more reliable and have a longer lifespan than two-stroke engines.

Q: Do scooters have shock absorbers?

A: Dual suspension uses both front and rear suspension to absorb bumps and shocks. They offer the smoothest ride quality, but are also the heaviest and most expensive suspension type. They're typically found on high-end electric scooters designed for very high speeds or both on and off-road use.

Q: How do I know if my motorcycle shock absorber is bad?

A: If you are experiencing uneven tread wear, you most likely have a worn shock. A worn shock can cause your motorcycle to lean to one side, causing more wear on the side of your tire. If you notice that your motorcycle is swerving to one side when you apply the brakes, your shocks should be an area you check.

Q: When do I need to replace my shock absorbers?

A: Bouncier Suspension
As your motorcycle's shocks begin to fail, they will also be unable to absorb the bumps in the road. This will lead to a rougher, bouncier ride, indicating that your shocks have worn out. A good shock absorber should make your suspension feel tight and adsorb bumps in the road, giving you a very comfortable ride.
Braking isn’t as Good as It Used to be
Many motorcycle owners do not know that the shocks in their motorcycles affect how well their braking system performs. When the shocks wear out, the suspension will play more, leading to an imbalance in proper weight transfer when stopping. This can cause your motorcycle to take longer to brake when you have worn shocks.
Uneven Tread Wear
Checking your tires is a vital part of your motorcycle’s routine maintenance. The tire pressure, tread level, and tread wear pattern tell you much about your motorcycle. If you are experiencing uneven tread wear, you most likely have a worn shock. A worn shock can cause your motorcycle to lean to one side, causing more wear on the side of your tire.
Motorcycle Swerves When Braking
If you notice that your motorcycle is swerving to one side when you apply the brakes, your shocks should be an area you check. Worn shocks can cause swerving and knocking noises when braking due to the suspension not being as tight as it used to be and weight being transferred incorrectly. This can present a dangerous safety risk if not taken care of immediately. 
Shock is Leaking
The last sign of a worn shock is leaking, seen down the side of a shock or at the seals of the shock. This indicates that a seal has broken down and hydraulic fluid is leaking out of the shock. In this instance, you will need to replace the shock as soon as possible to prevent complete shock failure and damage to surrounding components from the leaking fluid.

Q: What are the purpose of shock absorbers?

A: Shock absorbers are an integral part of a vehicle's suspension. A shock absorber is designed to absorb or dampen the compression and rebound of the springs and suspension. They control the unwanted and excess spring motion. Shock absorbers keep your tires in contact with the road at all times.

Q: Is suspension good for electric scooters?

A: The force exerted on the suspension can be high when jumping on the scooter, so it is crucial to invest in a reliable and durable suspension system. Overall, hydraulic suspension can greatly enhance the riding experience of an electric scooter, providing greater comfort and stability on bumpy roads.

Q: How to lubricate the shock absorber?

A: Start by folding the electric scooter so you can access the shock absorbers easily. Use a spray can to apply the grease or lubricant safely. Don't apply too much, or it might leak. Apply small amounts of grease to the shock absorbers every six months or every 30-hour ride. This applies to all moving parts of an electric scooter to ensure optimum performance. If your folding scooter for adults gets put away for the winter, the lack of use might decrease the grease quality. Lastly, if strange sounds come from the suspension, the first thing to do is apply lubricant. If this doesn't automatically stop the sounds, there may be other problems with the suspension.

Q: Rear Suspension vs. Front Suspension or Both – Which is Better?

A: The average electric scooter has either a front or rear suspension. Ensure you have checked the specs of the fast electric scooter for adults. The parts of an electric scooter will get advertised on the maker's website so check those before purchase. Full suspension is required for optimum performance.

Q: How to choose a scooter engine?

A: It's important to consider the climate, the terrain you'll be riding, and the weight of the rider when choosing an electric scooter motor. If you plan on tackling hills frequently, or riding in adverse conditions, it's best to opt for a scooter with a higher wattage motor, higher peak power rating, and higher torque.

Q: Why is suspension important in e-scooters?

A: Suspension is one of the most important factors to take into consideration before buying any vehicle – and electric scooters are no exception. If you ever find yourself riding on a bumpy road or a steep hillside, you’d best be on an e-scooter with suspension. Why? Because otherwise, there is a good chance that you lose balance due to the impacts from the surface. Electric scooter suspension, much like regular automobile suspension, has several parts that give it the dampening properties that it has. All these parts are equally crucial in ensuring a comfortable ride.

Q: Is a 4-stroke engine more fuel efficient?

A: Four-stroke engines are more efficient due to less demand for fuel. Fuel is consumed once every four strokes versus two. Four-stroke engines are better for the environment due to reduced emissions. A two-stroke engine releases burnt oil into the air in addition to the exhaust produced.

Q: What is the expected lifespan of a 4 stroke scooter engine?

A: If it's a four stroke it should last the same as any motorcycle engine, although the larger capacity motorcycle engines tend to last longer as they are usually so lightly loaded. They are not designed to last, so 3–4 years, maybe 40 000 miles tops!

Q: What type of fuel does a 4 stroke scooter engine use?

A: The mechanics of a 4-stroke engine can be found both in engines that run on gasoline and in engines that run on diesel or gas oil, but this does not mean that we can mix fuels, since they work completely different.

Q: How many cylinders are in a 4 stroke scooter engine?

A: A four-stroke engine typically has four cylinders. Originally Answered: how many cylinders are there in a four stroke engine? Four strokes are a measure of the number of strokes taken for the combustion of air-fuel mixture (also called 'charge') in a cylinder.

Q: Can scooter shock absorbers improve my ride quality?

A: Yes. In simple terms, the goal of shock absorber for an electric scooter is to take the impact of the friction between the road surface and the wheel. This ensures a smoother ride, so the rider is comfortable and won't lose control when riding. It opens up riders to a new class of scooters that are more reliable and adaptable to different surfaces.

We're professional scooter spare parts manufacturers and suppliers in China, specialized in providing high quality products and service. If you're going to wholesale high-grade scooter spare parts with competitive price, welcome to get more information from our factory.

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