- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engines & Engine Parts /
- Engine Kit Products /
- Engine Kits /
- 140cc 4-Stroke Racing Engine Motor with Manua...
0 ratings
Item #:
222208445
140cc 4-Stroke Racing Engine Motor with Manual Clutch Electric Start, Horizontal Pit Dirt Bike Engine for CRF50 CRF70 XR50 XR70 Z50 CT70 CT90 CT110
Item #:
222208445
SCR 9103
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Thursday, July 23
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Powerful 140cc 4-Stroke Engine delivers reliable acceleration and strong performance for pit dirt bike replacement or upgrades.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Powerful Performance
This 140cc 4-stroke engine delivers impressive power and torque, enhancing the performance of your dirt bike, making it ideal for racing enthusiasts seeking speed and reliability.
Electric Start Convenience
Equipped with an electric start, this engine offers effortless ignition, allowing riders to start their bikes quickly and easily, eliminating the hassle of kick-starting.
Versatile Compatibility
Designed to fit multiple models like CRF50 and XR70, this engine provides excellent adaptability, making it a valuable upgrade for various dirt bike brands and models.
Product Details
| Item Weight | 40 lbs (18.14 kg) |
Who Should Buy?
-
Young Riders
Ideal for young riders looking to upgrade their dirt bike for better performance and reliability.
-
Recreational Use
Perfect for recreational riders seeking a powerful yet manageable engine for casual trail riding.
-
DIY Mechanics
Great for DIY enthusiasts who enjoy customizing dirt bikes and improving engine performance themselves.
-
Professional Racers
May not meet the high-performance demands and specifications required by professional motocross racers.
-
Heavy Riders
Not suitable for heavier riders as it may struggle with torque and speed under significant weight.
-
Beginners
Not recommended for absolute beginners, as it requires experience with manual clutch systems for effective operation.
Product Description
140cc 4-Stroke Racing Engine Motor with Manual Clutch Electric Start, Horizontal Pit Dirt Bike Engine for CRF50 CRF70 XR50 XR70 Z50 CT70 CT90 CT110 ATC70 SSR110 Taotao DB14 DB17 Z50R YX140 DTE140
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What bikes is this engine compatible with?
Answer: This engine is compatible with various models including CRF50, CRF70, XR50, XR70, Z50, Z50R, and many others. -
Question:
Does the engine include all necessary installation components?
Answer: Yes, it includes essential components such as a kick starter lever, gear shift lever, manifold set, and engine cover. -
Question:
How does the starting system work?
Answer: The engine features both electric and kick start options for reliable starting in all conditions.
YC Yier Engine Kits Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
SCR 9103
Order now and get it around Thursday, July 23
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Upgrade your bike with a powerful 140cc 4-stroke engine.
- Delivers 7KW of power at 8500RPM and 9.5N·m torque at 5500RPM.
- Features dual electric and kick start for reliable starting.
- Includes manual wet clutch and 4-speed gearbox for smooth control.
- Comes with an installation package for easy setup.
- Compatible with popular pit dirt bike models.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.