Source smarter with
Leverage AI to find the perfect product match in seconds
Matches from over 100 million products with precision
Handles queries 3 times as complex in half the time
Verifies and cross-validates product information
Get the app
Get the Alibaba.com app
Find products, communicate with suppliers, and manage and pay for your orders with the Alibaba.com app anytime, anywhere.
Learn more

50cc scooter engines for sale

(561 products available)

About 50cc scooter engines for sale

Types of 50cc Scooter Engines

When looking for a 50cc scooter engine for sale, it’s important to know the types of engines available and how they work. 50cc engines power small vehicles like mopeds, scooters, and small motorcycles. Their main job is to convert gasoline into energy so that these small vehicles can move. There are two main types of 50cc engines:

  • Two-Stroke Engines: A 50cc two-stroke engine has two main movements or strokes while generating power. First, the piston goes down, creating space for air and fuel to enter. Then, the piston comes back up, compressing the mixture and readying it for the next cycle. These engines are lighter and simpler because they have fewer parts. They are also cheaper to make and repair. They generate power with every piston movement. However, they are not very efficient, burning more fuel and producing more pollutants. They also need more frequent maintenance and have a shorter lifespan. Because of their simple design and ability to generate power quickly, they are mostly used in situations like racing, where speed is the main goal.
  • Four-Stroke Engines: A 50cc four-stroke engine has four movements in each cycle: intake, compression, power, and exhaust. First, the intake valve opens, and the piston goes down, allowing air and fuel to enter the cylinder. Then, the piston moves up to compress the mixture. Next, the piston goes down again on the power stroke, igniting the fuel and producing energy. Finally, the exhaust valve opens, and the piston moves up again to release the exhaust gases. These strokes make the engine heavier and more complicated, with more parts like valves and a camshaft. They are more efficient, using all the fuel and producing fewer emissions. As a result, they have better fuel economy and are more environmentally friendly. Four-stroke engines also have a longer lifespan and require less maintenance. However, they are more expensive to manufacture and have a delayed power delivery compared to two-stroke engines. Because of their efficiency and environmental benefits, they are commonly used in most modern vehicles, including scooters and motorcycles.

Specifications and maintenance of 50cc scooter engines for sale

Before buying 50cc scooter engines for business, it's important to understand their specifications and know how to maintain them for better performance.

  • The engine

    The heart of the scooter is the engine, which generates power for propelling and accelerating the scooter. The 50cc engine is the standard one on most small-engined scooters. It provides enough power for short-distance travels while maintaining fuel efficiency.

  • The transmission

    Most 50cc scooters have automatic transmissions. It enables the rider to enjoy a smooth ride without the need to shift gears manually. The transmission helps to optimize engine power regardless of the riding conditions.

  • The fuel tank

    50cc scooters are designed with small fuel tanks that hold about 5 to 7 liters of fuel. The tank is connected to the engine through a fuel line and is used to store fuel that powers the engine. Fuel consumption varies depending on the engine's condition, riding habits, and load. On average, it consumes about 2 to 3 liters of fuel per 100 kilometers. With a full tank, users can ride for 200 to 300 kilometers, depending on the engine's condition and riding habits.

  • The wheels

    50cc scooters have small wheels that make the ride smooth and enjoyable. Smaller wheels are more efficient on the road and consume less fuel compared to bigger wheels. The wheels measure between 10 and 12 inches and have adequate treads for grip on different road surfaces.

  • The brakes

    Most 50cc scooters come with disc brakes in the front wheels and drum brakes in the rear wheels. The brake system provides enough stopping power for the scooter's weight and speed. The brake pads should be replaced regularly to maintain optimal braking performance.

  • The battery

    Most 50cc scooters are powered by 12-volt lead-acid batteries. The batteries provide enough power for starting the engine and powering the scooter's electrical components. Depending on the battery's condition and usage, it can last between 2 to 5 years. However, the battery's lifespan is affected by several factors, such as temperature, overcharging, and deep discharging. To enhance the battery's performance and lifespan, it should be charged regularly and maintained.

  • The oil system

    The oil system lubricates engine parts to minimize friction and wear, increasing the engine's efficiency and lifespan. It consists of the oil tank, oil pump, oil filter, and oil lines. Users should check the oil level regularly and change the oil after the recommended mileage to maintain optimal performance.

How to choose 50cc scooter engines for sale

There are several factors to consider before buying any 50cc engine; here are some of them:

  • Purpose:

    What is the engine intended for? If it is meant for a business scooter, a strong and durable engine is needed. If it is for personal use, the need for a strong engine may not be that important.

  • Brand:

    Consider the brand of the engine. Is it a well-known and trusted brand? Buying an engine from a trusted brand is a good idea because it will run for a long time without problems. If it is a brand that is not known or trusted, the engine may not last long.

  • Price:

    Always have a budget before buying a 50cc engine. There are many engines on the market to choose from, so it is important to stick to the budget. Consider the features of the engine before buying, as the high-priced ones have advanced features that may be affordable but useful in the long run.

  • Fuel efficiency:

    Always choose an engine that has great fuel efficiency. This helps to save money and protects the environment by reducing emissions. Before buying, check the engine specifications to know its fuel efficiency.

  • Maintenance:

    Consider how easy or hard it is to maintain the engine. Before purchasing, do some research to know the maintenance requirements of the engine. Choose an engine with low maintenance requirements and with readily available parts.

  • Warranty:

    Get an engine that has a good warranty period. This gives the buyer confidence that the manufacturer trusts the engine they produced. Also, if there is a fault in the engine, it can be replaced or repaired.

  • Features:

    Check out for the features of the engine, such as its power output, fuel efficiency, and torque. Choose an engine that has features that will meet the needs and requirements.

  • Installation:

    Consider how easy or hard it is to install the engine. Before purchasing, do some research to know the installation requirements of the engine. Choose an engine that is easy to install.

How to DIY and Replace 50cc Scooter Engines

It is always advisable to have a professional mechanic work on the 50cc scooter. However, if the engine's damage is not severe, it is possible to replace or repair it by DIY. Before starting any repair or replacement on the 50cc scooter engine, make sure to read the user's manual to understand how the engine works and to know the tools required for the specific task.

Below are the general steps to follow when replacing a 50cc scooter engine.

  • 1. Take apart the body panels of the 50cc scooter to get access to the engine.
  • 2. Remove the battery and its cables connected to the engine.
  • 3. Disconnect all the wires connected to the engine, including the starter motor and ignition coils.
  • 4. Drain all the fluids from the engine, including engine oil, gasoline, and coolant.
  • 5. Loosen the bolts and nuts holding the engine in place and carefully lift the engine out of the frame.
  • 6. Take the engine and dispose of it according to the local regulations.
  • 7. Take the new engine and prepare it by connecting all the necessary components, such as the carburetor, exhaust, and electrical wiring.
  • 8. Carefully lower the new engine into the scooter's frame and secure it with bolts and nuts.
  • 9. Reconnect all the electrical wiring and the engine's cooling system.
  • 10. Refill the engine with the required fluids and oil.
  • 11. Reconnect the battery and body panels.
  • 12. Start the scooter to ensure everything is working properly.

Q and A

Q. Are there any differences between electric and gas 50cc engines?

A. Yes, there is a difference. A gas engine uses gasoline to power its combustion engine, while an electric engine uses batteries to power an electric motor. Their power delivery is different, with gas engines having more torque and power than electric engines.

Q. How fast does a 50cc engine scooter go?

A. The average speed for a 50cc engine scooter is 30 mph. However, 40 mph is achievable with some modifications and a well-tuned engine.

Q. How long does a 50cc engine last?

A. The 50cc engine can last for 2 to 3 years with proper maintenance and low mileage usage. The engine's lifespan will reduce with high mileage and improper maintenance.