125cc Crf50 Dirt Bike Engine 4 Stroke Motor Replacement Large Oil Tank New

Description

If you are a driving enthusiast who loves freedom, pursues speed and passion, then our CRF50 125CC engine will be your ideal choice. With its excellent performance and stable power output, it makes your driving more enjoyable and comfortable. Buying CRF50 125CC engine means choosing a high-quality, high-performance, and safe driving experience.

 

Key Features

Powerful Engine: The 4-stroke engine can provide higher intake and exhaust efficiency, saving energy and fuel (Min. Fuel Consumption: ≤367g/kW.h). It can provide stronger power (Max. Power: 6.5 kW/7500r/min±375r/min) during driving and ensure that your drive will be very smooth and powerful.

 

Durable Design: Designed with premium aluminium and cast steel, this engine has high hardness, wear resistance, and corrosion resistance. So it can adapt to complex environments and conditions.

 

Effective Cooling System: By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.

 

Precise Control: Its 4-speed manual clutch transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. It makes your driving experience more exciting under different road conditions.

 

Easy to Operate: The engine features a CDI ignition system, which leads to higher energy and ignition efficiency. So you can start the engine quickly and safely.

 

Easy to Maintain: The single cylinder has simple structure, light weight and small size, which is easy to clean stains, therefore its maintenance is uncomplicated.

 

Protective Shipping: Our product comes with protective foam to prevent any damage during transportation, ensuring that it arrives in perfect condition.

 

Quality Customer Service: In case of any issues, our dedicated customer service team is ready to assist you and provide prompt after-sales support.

 

Details

Dipstick: The oil port adopts a dipstick design to effectively prevent oil leakage from the fuel tank.

 

Shockproof Installation Hole: It is used to install shock absorbers to reduce the vibration of the motorcycle during driving, thereby improving its driving comfort.

 

Metal Crankshaft: The crankshaft adopts high-quality metal design to ensure extremely high safety and stability during operation. 

 

Application

This engine fits for such motorcycles as HONDA CRF50/CRF70/XR50/XR70/Z50/Z50R/CT70 Mini Trail/Z50/Mini Trail Monkey/XL70 ST70/QA50/QR50/CL70/SL70/70 Passport/ST 90K2/ST 90K1/CS 90/SL 90/ZB 50.

 

Specification

Engine Type: Single Cylinder, 4 Stroke

Material: Aluminium, Cast Steel

Ignition System: CDI

Start Mode: Kick-starter

Clutch: Wet Multi-plate

Transmission: 4-speed, Manual Clutch

Displacement: 125CC

Compression Ratio: 9.0:1

Max Power: 6.5 kW/7500r/min±375r/min

Rated Power: 5.6 kW/7500r/min±375r/min

Max. Torque: 8.0 Nm/5000r/min±250r/min

Idle Speed: 1500r/min±100r/min

Min. Fuel Consumption: ≤367g/kW.h

Spark Plug: A7TC

Carburetor Type: PZ22  

Primary Reduction Ratio: 3.722

Gear Ratio: 2.833/1.706/1.238/0.958

Lubricant Capacity: 900ml

Lubricant: SAE15W/40-SE, 4-stroke Gasoline Engine Oil

Engine Dimensions: 42.5*27*23cm/16.73*10.63*9in

Package Size: 48.5*37*35.2cm/19.1*14.57*13.86in (Outer); 46*31.5*25.5cm/18.1*12.4*10in (Inner)

Net Weight: 19.2kg/42.33lbs

Gross Weight: 21.3kg/46.96lbs

 

Package Included

1* CRF50 125CC Engine

1* Kick Starter Lever

1* Gear Shift Lever

1* Carburetor

1* Intake Manifold

1* CDI

1* Sprocket Cover

3* Intake Gaskets

Some Screws for Assembly

 

Notes

  • Please note this product is for motorcycles only.
  • Please note that there may be oil stains on the received package. This situation is normal. Please rest assured to use it.
  • The installation is very complicated, so we strongly recommend that this engine be installed by professionals.
  • Please check the lubricating oil lever before driving.
  • Please change the oil and clean filter every 300km and do not exceed 50km/h maximum during the first 500km.
  • Please note that gearshift is prohibited unless the accelerator is loosed.
  • Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure yo
 
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Fees such as import duties, taxes are not included in the item price or shipping costs. These charges are the buyer's responsibility.
Shipping:
 
2-9 working days to: USA
 
    •  
    • We maintain high standards of excellence and strive for hundred percent customer satisfaction. Feedback is very important to us. We hope that you contact us immediately before you give neutral or negative feedback, so that we can address your concerns. It is impossible to address issues if we do not know about them!
 
  •  
Your satisfaction is our ultimate goal. We work hard to earn your trust and future business. Our certified technicians have tested each item before shipping. The unit comes with 1 year limited warranty on all manufacturing defects.
a) If you receive a defective item, you may return it or ask for a discount. Please contact us within 14 days after you receive the package.
b) What you returned must be intact and in its original packaging as re? u. Customer is responsible for shipping costs of the returned item.
c) We will cover the cost of shipping back t with the shipping rate indicated in the registration page. We will send you a new unit or refund the full payment you paid.
Thank you.
Business Hour
Business Hour: Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
Monday To Friday: 8:30 AM to 5:00 PM (Beijing China time)
Due to time zones, our reply to your questions may not be immediately. But within above working time, we will reply your email within 24 hours. If it's non-workdays, please kindly be patient and wait till Monday.
Please contact us with ebay message.
Please feel free to contact us if you have any questions.
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On Oct 10, 2026 at 00:07:48 PDT, seller added the following information:

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