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Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement in Kuwait

Complete 140CC Racing Engine 4 Stroke Motor Kit with Carburetor CDI Wiring Harness Clutch Lever & Exhaust Pipe for Dirt Pit Bike XR50 CRF50 XR CRF 50 70 CT70 ATC70 CT110 Motorcycle Engine Replacement

KWD 226
– 1 +

Special Features

  • High-Performance 140cc Engine – Powerful 4-stroke, 4-speed manual clutch engine Electric Start (bottom starter) with a 0-1-2-3-4 gear shift pattern, delivering up to 8kW (7500±375 RPM) and 9.5N.m torque (5000±250 RPM) for explosive acceleration and reliable performance.
  • Durable 4-Stroke Design – Built for long-lasting use with smooth power delivery, low fuel consumption, and stable operation – ideal for upgrading older 50cc–125cc pit or dirt bikes.
  • Complete Installation Kit – Includes engine, carburetor, CDI box, wiring harness, clutch lever, throttle cable, kick starter, air filter, exhaust muffler, intake manifold, and gear shifter – everything needed for easy installation.
  • Wide Compatibility – Perfect fit for Honda XR50, CRF50, CRF70, CT70, ATC90, CT110, and most Chinese dirt bikes using similar frame mounts. Great for custom builds, engine swaps, or replacements.
  • Reliable & Ready to Run – Tested and tuned for consistent performance. With its 17mm output shaft and quality components, this 140cc motor is the ideal choice for racing, trail riding, and pit bike upgrades.

Description

Upgrade your dirt bike's power and performance with this complete 140cc 4-stroke racing engine kit. Featuring a manual clutch and 4-speed transmission (0-1-2-3-4), this engine delivers 8kW of output power and 9.5N.m torque for exceptional acceleration and endurance.
The kit comes with everything you need for a smooth installation — including a CDI ignition system, wiring harness, carburetor, clutch lever, air filter, throttle and clutch cables, kick starter, exhaust pipe, and gear shift lever.
Designed as a direct replacement or upgrade for Honda XR50, CRF50, CRF70, CT70, ATC90, CT110, and similar dirt or pit bikes, this 140cc motor offers outstanding durability, fuel efficiency, and easy maintenance. Perfect for both hobbyists and racers looking to transform their mini bike into a true performance machine.

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