The Ultimate Guide to the 140cc Lifan Motor
The 140cc Lifan motor is a powerhouse engine known for its high performance, durability, and versatility. With its roots in Chinese manufacturing, the Lifan engine has gained popularity in various applications, from pit bikes to mini motorcycles. This guide will delve into the specifications, applications, and features of the 140cc Lifan motor, ensuring you have all the information needed to make an informed decision.
Comparison of Different Types and Applications of 140cc Lifan Motors
| Model/Type | Application | Key Features | Power Output | Gear Type |
|---|---|---|---|---|
| Lifan 140cc Engine Motor 4 Up | Racing and Off-road | Oil cooled, high performance | 10 hp @ 7500 rpm | 4-speed manual |
| Lifan 140cc 4 Stroke | Pit bikes | Complete racing engine, bolt-in replacement | 8.5 kW @ 9500 rpm | 4-speed manual |
| Lifan 140cc Big Bore | General use | Big bore design, enhanced power | 9 kW @ 8000 rpm | Automatic |
| Lifan 140cc Oil Cooled | Trail riding | Optimal cooling, performance-focused | 10 hp @ 8000 rpm | 4-speed manual |
| Lifan 140cc Single Cylinder | Mini bikes and ATVs | Lightweight, compact design | 8.5 hp @ 7500 rpm | 4-speed manual |
Overview of the 140cc Lifan Motor
The Lifan 140cc motor is primarily a single-cylinder, four-stroke engine. It is designed for various applications including pit bikes, ATVs, and mini motorcycles. With a compression ratio of 9.47:1 and a bore and stroke of 55mm x 59.5mm, this engine offers a powerful performance that exceeds many stock engines in its class.
Design and Build Quality
The Lifan engine is constructed using high-quality materials, featuring an aluminum cylinder head and reinforced components. This ensures durability and longevity, making it a popular choice among racing enthusiasts and casual riders alike. The 4-disc clutch and high-quality kick starter axle are designed for optimal performance, providing a smooth and responsive riding experience.
Performance Metrics
With a maximum power output of up to 10 hp at 7500 rpm, the Lifan 140cc engine offers impressive torque and acceleration. This performance is ideal for racing applications, where quick acceleration and high speed are crucial. The engine’s torque rating of at least 9.5 Nm at 5,500 rpm ensures strong performance even at lower speeds.
Applications of the Lifan 140cc Motor
The versatility of the Lifan 140cc motor allows it to be used in various applications, making it a favorite among different rider demographics.
Pit Bikes
The Lifan 140cc engine is exceptionally popular in the pit bike community. It serves as a reliable and powerful upgrade for models like the Honda XR50 and CRF50. Its ability to deliver four times the horsepower of stock engines makes it a top choice for racers looking for a competitive edge.
Trail Riding
For trail enthusiasts, the Lifan 140cc engine’s oil-cooled design ensures that it can handle the rigors of off-road riding. It is commonly used in mini-trail bikes, providing both power and reliability on rugged terrains.
General Usage
Many users opt for the Lifan 140cc as a general-purpose engine in various mini bikes and ATVs. Its compact size and lightweight nature allow for easy installation and maintenance.
Technical Features of the Lifan 140cc Motor
| Feature | Specification |
|---|---|
| Engine Type | Single Cylinder, 4-Stroke |
| Cooling System | Oil Cooled |
| Maximum Power | 10 hp @ 7500 rpm |
| Rated Power | 8.5 kW @ 9500 rpm |
| Torque | 9.5 Nm @ 5500 rpm |
| Gear Configuration | 4-speed Manual Clutch |
| Bore x Stroke | 55mm x 59.5mm |
| Compression Ratio | 9.47:1 |
| Starting System | Kick Start Only |
| Weight | Approx. 440mm(L) x 280mm(W) x 190mm(H) |
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Conclusion
The 140cc Lifan motor stands out for its performance, versatility, and build quality. Whether you are using it for racing, trail riding, or general applications, this engine provides an impressive power-to-weight ratio, making it an excellent choice for various rider needs. With a robust design and specifications that cater to tuning enthusiasts, it is no wonder the Lifan 140cc has become a staple in the mini-motorcycle community.
FAQ
What is the horsepower of the Lifan 140cc motor?
The Lifan 140cc motor can produce up to 10 hp at 7500 rpm, providing significant power for various applications.
Is the Lifan 140cc engine oil cooled?
Yes, the Lifan 140cc engine features an oil cooling system, which helps maintain optimal operating temperatures, especially during demanding rides.
What types of bikes can the Lifan 140cc engine fit into?
The Lifan 140cc engine is designed to fit into various models, including Honda Mini Bikes like the XR50 and CRF50, and many pit bikes.
How many gears does the Lifan 140cc engine have?
The Lifan 140cc engine typically features a 4-speed manual gearbox, allowing for smooth transitions and control.
What is the compression ratio of the Lifan 140cc motor?
The compression ratio of the Lifan 140cc motor is 9.47:1, which contributes to its performance and power output.
Can I use the Lifan 140cc engine for racing?
Absolutely! The Lifan 140cc engine is popular in racing applications due to its high power output and reliability.
What is the weight of the Lifan 140cc engine?
The approximate dimensions of the Lifan 140cc engine are 440mm(L) x 280mm(W) x 190mm(H), and it is designed to be lightweight for easy handling.
Does the Lifan 140cc engine come with a warranty?
Many retailers, such as www.pccmotor.com and snw.nz, offer warranties on the Lifan 140cc engine, typically around 6 months.
What type of oil should I use for the Lifan 140cc engine?
It is recommended to use 5W/40 4-stroke motorcycle oil for optimal lubrication and performance.
Where can I purchase the Lifan 140cc engine?
You can purchase the Lifan 140cc engine from various retailers, including www.pccmotor.com, tboltusa.com, and unitedexpressdist.3dcartstores.com.