Used 125cc engine

Types of Used 125cc Engines

Used 125cc engines have become more popular because of their affordability and low-running costs. They are perfect for people who want to save money and the environment. The 125cc engine is a good middle ground between power and efficiency. It can handle urban traffic and gives good mileage. There are different types of 125cc engines:

• Used 4-stroke engines

  The four-stroke engine is the most common engine type. It uses four distinct strokes to complete one cycle. The strokes are: intake, compression, power, and exhaust. These strokes happen in four separate steps. The used 125cc four-stroke engines are popular in cars and motorcycles. They are known for their fuel efficiency and low emissions. The four-stroke engines have a smooth and steady power delivery. Used 125cc four-stroke engines generate less noise and are more reliable. The maintenance intervals for used 125cc four-stroke engines are longer. The downside of the used 125cc four-stroke engines is that they are heavier.

• Used 2-stroke engines

  The two-stroke engine has a simpler design. It uses two strokes to complete one cycle. The strokes are: compression and power. The strokes happen in one single step. The used 125cc two-stroke engines have more power in a smaller size. They are lighter and good for quick acceleration. The two-stroke engines have a good power-to-weight ratio. Used 125cc two-stroke engines have high emissions and noise levels. They are not very fuel efficient.

• Used diesel 125cc engines

  The used diesel 125cc engines are good for high-torque delivery. Diesel engines are more reliable and have a longer lifespan. The used diesel 125cc engines have better fuel efficiency than petrol engines. The downside of the used diesel 125cc engines is the higher initial cost and more emissions.

• Used liquid-cooled 125cc engines

  The used liquid-cooled 125cc engines use a liquid cooling system. The cooling system circulates a coolant through the engine. The liquid-cooled engines are good for high-performance tasks. They have a constant engine temperature, even during heavy loads. The liquid-cooled 125cc engines are more efficient and have a longer lifespan.

• Used air-cooled 125cc engines

  The used air-cooled 125cc engines are the most common and affordable. The air-cooled 125cc engines use the ambient air to cool the engine. The air-cooled 125cc engines are simpler and have a low initial cost. The used air-cooled 125cc engines have low running and maintenance costs.

Specifications and Maintenance of Used 125cc Engine

Used 125cc engines have different specifications depending on the types, models, and manufacturers. However, here are some general specifications of typical Used 125cc engines.

• Engine displacement:

  It is the total volume of all the cylinders in the engine, expressed in liters or cc. A 125cc engine has a 125 cc engine displacement, which allows it to produce sufficient power for driving.

• Cylinder configuration:

  Some used 125cc engines have a single-cylinder configuration, while others have a twin-cylinder configuration. The 125cc engine with a single-cylinder configuration is more common and widely used in motorcycles and scooters.

• Fuel system:

  Used 125cc engines have different fuel systems depending on the manufacturer. However, most of them have a carburetor for fuel metering and air mixing. Others use electronic fuel injection for precise fuel delivery.

• Ignition system:

  Used 125cc engines with ignition systems generate the spark needed to ignite the air-fuel mixture in the engine cylinder. The ignition system could be a traditional ignition coil and spark plug or a more modern electronic ignition system.

• Cooling system:

  Some used 125cc engines have water cooling, while others have air cooling. The cooling system prevents overheating of the engine during operation.

• Transmission:

  Used 125cc engines are typically connected to manual or automatic transmissions, which allow the rider or driver to change gear and control the power delivery to the wheels.

• Emission standards:

  Used 125cc engines are designed with emission control technologies that limit harmful emissions. This makes them comply with the current emission standards.

Here are some tips on how to maintain a used 125cc engine.

• Use the right fuel: Used 125cc engine owners should use high-quality fuel with the octane rating recommended by the manufacturer to enhance optimal performance. Also, they should avoid using low-quality fuel that could damage the engine over time.
• Change the oil regularly: Oil change is important in maintaining the health of used 125cc engines. Therefore, engine owners should check the oil level regularly and change the oil at the intervals recommended by the manufacturer.
• Keep the air filter clean: Air filters prevent dirt and debris from entering the engine, which helps maintain optimal engine performance. Therefore, used 125cc engine owners should check the air filters regularly and clean them as needed. They should also replace them when worn out.
• Check the spark plug: Spark plugs are an important part of the used 125cc engine's ignition system. Engine owners should check the spark plugs regularly and clean or replace them to ensure efficient combustion of the air-fuel mixture.
• Coolant level: Used 125cc engine owners should check the coolant level in the cooling system and top it up as needed. This helps prevent overheating of the engine during operation.
• Inspect the fuel system: Used 125cc engine owners should inspect the fuel system components such as fuel lines and filters for leaks or damage. They should also replace worn-out parts to prevent fuel system failure.
• Regular maintenance by professionals: Used 125cc engine owners should take their engines for regular maintenance at professional service centers. This ensures that the engines are maintained in good working condition and reduces the risk of mechanical failure.

How to Choose Used 125cc Engines

There are various factors to consider when choosing a used 125cc engine to ensure it meets business and customer needs. They include the following:

• Brand and Manufacturer:

  Look at the brand and manufacturer of the 125cc engine. Well-known brands have a good reputation for making high-quality engines that last a long time. Engines from these trusted brands tend to run more smoothly and reliably than those from lesser-known companies.

• Condition and Mileage:

  The state and how far the used 125cc engine has been driven are important. An engine in good condition with low mileage is a better pick. The engine's condition tells how well it was taken care of. An engine with minor wear and tear or damage is more likely to keep running well. Low mileage means the engine has not been driven as much, so it will probably last longer before needing repairs. An engine with high mileage or one in bad shape could break down soon. This would mean spending extra money on fixes or replacement.

• Type of Cooling System:

  Used 125cc engines for motorcycles can have air or liquid cooling. Air-cooled engines are cooled by airflow. They are simple and work well enough. But in hot weather or when riding slowly, they do not cool as effectively. Liquid-cooled engines use a fluid to transfer heat away. Liquid cooling works better in all conditions, especially extreme heat. For reliability, liquid cooling is better than air cooling.

• Fuel Efficiency:

  Check how well the 125cc engine uses fuel. An engine that gets high miles per gallon (MPG) is more efficient. This means the motorcycle can travel further on a tank of gas. Good fuel efficiency saves money on gasoline over time. It is better for the environment, too, as it produces less pollution by using less fuel. Compare the MPG ratings of different 125cc engines to see which ones use fuel the best.

• Torque and Power Output:

  The amount of power an engine generates is important. If customers need a motorcycle for carrying heavy loads, look for one with high torque. For riding on hilly roads, an engine with more power is needed. But keep in mind that engines with higher torque or power may use fuel less efficiently than those with lower ratings.

• Ease of Maintenance:

  Consider how simple it is to do maintenance on the 125cc engine. Some engines have features that make repairs or tune-ups faster and easier. For example, an engine with easy access to parts that need work on them often saves time and money on maintenance. Research which motorcycles have engines that require less effort to take care of properly.

• Emissions Standards:

  Look at the emission rules for the area where the motorcycle will be ridden. Different places have regulations about how much pollution vehicles can emit. Ensure the used 125cc engine meets the emission standards of the location. Otherwise, the motorcycle may not be legal to drive on public roads in that region.

How to DIY and replace Used 125cc Engine

There are several ways to replace a 125cc engine, whether in a motorcycle or any other vehicle. However, before going through the steps, it is important to note that replacing an engine requires mechanical knowledge.

To replace a 125cc engine, gather the following tools:

• Socket set
• Wrench set
• Screwdriver set
• Torque wrench
• Engine hoist or stand
• New engine (used or rebuilt 125cc engine)
• Motorcycle shop manual

After gathering the tools, follow the steps below:

• 1. Prepare the Vehicle: Disconnect the battery and drain the fluids. Drain the coolant and oil and ensure there are no leaks.
• 2. Follow the Manual: Use the manual to find the steps to remove the engine from the chassis or frame. It will help find where the engine is mounted and the best way to reach it.
• 3. Disconnect the Engine: Start by disconnecting the wires, cooling system hoses, exhaust system, and any other component connected to the engine.
• 4. Mount the Engine Hoist: Once everything is disconnected, mount the engine hoist to the motorcycle or the vehicle carrying the 125cc engine.
• 5. Support the Engine: Use the engine hoist to support the engine and unbolt it from the frame or chassis. Follow the manual to know where the engine is mounted.
• 6. Remove the Engine: Once the engine is unbolted from the frame, lift it using the engine hoist and remove it from the vehicle.
• 7. Install the New Engine: Place the new engine (used or rebuilt) on the engine hoist and lower it into the vehicle's engine bay. Once it is in position, bolt it to the frame or chassis.
• 8. Reconnect the Systems: Reconnect all the systems disconnected in step 3. This includes electrical connections, cooling system hoses, and the exhaust system.
• 9. Follow the Manual Again: Once the systems are reconnected, follow the manual to install the engine components, such as the air intake, ignition system, and others.
• 10. Final Checks: Before starting the engine, do final checks. Ensure all bolts are torqued to specifications, all hoses and connections are secure, and the fluids are filled to the correct level.
• 11. Start the Engine: Once all checks are done, start the engine and let it run for a few minutes. Check for leaks, unusual noises, or any error codes on the display.

Q&A

Q1: How long does a 125cc engine last?

A1: There is no definite answer to this question as many factors affect the lifespan of the engine. However, it is estimated that a 125cc engine will last 2 to 3 years with regular maintenance and care.

Q2: Is a 125cc engine good for beginners?

A2: Yes, the 125cc engine is good for beginners. It is not too fast, and riders can easily control their speed. Additionally, the engine has good fuel efficiency.

Q3: How fast does a 125cc engine go?

A3: A 125cc engine can go between 60 to 65 mph. However, the speed depends on different factors including the rider's weight, bike design, and road conditions.