- Home Page /
- Automotive /
- Motorcycle Parts /
- Parts /
- Engine /
- Cylinder Heads /
- 50mm Big Bore Cylinder Head Kit Assy with 69m...
50mm Big Bore Cylinder Head Kit Assy with 69mm Valves for GY6 50cc-100cc 139QMA 139QMB Engine Scooter Moped ATV Go Kart Quad
XOF 50049
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
QTY:
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.
Experience powerful performance and durability with our 50mm Big Bore Cylinder Head Kit, designed for GY6 50cc-100cc engines.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
What Stands Out
Product Details
Who Should Buy?
-
Performance Enthusiasts
Ideal for users seeking to enhance their scooter's power and speed with increased engine performance.
-
DIY Mechanics
Perfect for those who enjoy hands-on projects and have the skills to install engine upgrades themselves.
-
Race Competitors
Suited for individuals involved in racing, where greater engine performance can provide a competitive edge.
-
Casual Riders
Not suitable for users who primarily use scooters for simple commuting without performance enhancements.
Product Description
50mm Big Bore Cylinder Head Kit Assy with 69mm Valves for GY6 50cc-100cc 139QMA 139QMB Engine Scooter Moped ATV Go Kart Quad
Customer Questions & Answers
-
Question:
What is the benefit of using a 50mm Big Bore Cylinder Head Kit?
Answer: The 50mm Big Bore Cylinder Head Kit allows for increased engine displacement, resulting in improved horsepower and torque. This upgrade enhances the performance of your GY6 engine, making it more powerful and responsive. Users typically experience better acceleration and higher top speeds, which is particularly advantageous for scooters, mopeds, and ATV applications. Additionally, this kit is designed to work seamlessly with 69mm valves, ensuring optimal airflow and combustion efficiency. -
Question:
Is this kit compatible with all GY6 engines?
Answer: This kit is specifically designed for GY6 engines (139QMA and 139QMB models) that range from 50cc to 100cc. While it fits a wide variety of scooters, mopeds, and ATVs, it is crucial to verify your engine model to ensure compatibility. Using this kit on incompatible engines may lead to mechanical issues. Consult your engine specifications before making a purchase, and consider professional installation for the best results. -
Question:
Do I need any additional parts when installing this cylinder head kit?
Answer: When installing the 50mm Big Bore Cylinder Head Kit, some additional components may be necessary, such as gaskets, seals, and potentially modified carburetors or exhausts to handle the increased airflow. Depending on your specific engine setup, it’s advisable to assess what parts are essential for a successful installation. Thorough preparation ensures that the upgrade performs optimally, maximizing the benefits of increased engine performance. -
Question:
What tools are required for the installation of this cylinder head kit?
Answer: To install the 50mm Big Bore Cylinder Head Kit, you will need standard tools such as a socket and wrench set, screwdrivers, possibly a torque wrench, and a compression gauge to check engine pressure post-installation. Additionally, having a service manual for your specific engine model can guide you through the installation process, ensuring each step is executed correctly and safely. Proper tools and preparation help avoid common pitfalls during the upgrade. -
Question:
How do I know if my GY6 engine needs a big bore upgrade?
Answer: If you find that your scooter or ATV lacks power, struggles with inclines or feels sluggish during acceleration, it may be time to consider a big bore upgrade. This kit offers improved performance characteristics, which can reinvigorate the responsiveness and efficiency of your engine. Testing the performance and considering your riding needs can help assess if this upgrade is suitable for your vehicle. -
Question:
What are the key features of the 69mm valves included in this kit?
Answer: The 69mm valves included in the kit are designed to enhance airflow, allowing for better combustion efficiency within the engine. These larger valves facilitate a greater volume of air and fuel mixture entering the combustion chamber, improving performance and responsiveness. For riders seeking enhanced power and acceleration for off-road riding or racing, upgrading to larger valves can dramatically impact your overall engine capabilities. -
Question:
Will I need to adjust my carburetor after installation?
Answer: Yes, after installing the 50mm Big Bore Cylinder Head Kit, adjusting your carburetor is often necessary to ensure optimal fuel delivery and air-fuel mixture balance. The increase in engine size and airflow requires a recalibration to prevent running too lean or too rich, which can affect performance and engine longevity. Consulting a professional technician for tuning suggestions can help maximize your engine's performance following the upgrade. -
Question:
Can I use this cylinder head kit on a go-kart or quad?
Answer: Absolutely! The 50mm Big Bore Cylinder Head Kit is perfect for enhancing the performance of go-karts and quads, given that they utilize GY6 engines (models 139QMA and 139QMB). This upgrade provides the additional power and torque necessary for more challenging terrains and racing scenarios, allowing for improved speed and efficiency. Always make sure the engine specifications match to ensure a perfect fit. -
Question:
What maintenance is required after upgrading to a big bore kit?
Answer: After upgrading to the 50mm Big Bore Cylinder Head Kit, regular maintenance is imperative to keep your engine performing at its best. This includes frequent oil changes, inspecting and cleaning the air filter, and monitoring valve lash adjustments. Paying attention to any changes in performance or unusual sounds after installation can also alert you to potential issues that may need immediate attention. Consistent upkeep will ensure the longevity and reliability of your upgraded engine. -
Question:
Where can I buy the 50mm Big Bore Cylinder Head Kit Assy?
Answer: You can find the 50mm Big Bore Cylinder Head Kit Assy with 69mm Valves for GY6 engines on Ubuy in Mali. Ubuy offers a wide selection of performance parts, ensuring you get quality components to enhance your scooter or ATV's performance. Their user-friendly platform and customer service can assist you in securing the right parts for your needs.
HANQIMOTO Cylinder Heads Editorial Review
Customer Reviews & 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
Pros
- Enhanced engine performance
- High-quality materials
- Easy to install
- Improves fuel efficiency
- Compatible with multiple models
Cons
- May require slight adjustments for perfect fit
Platform Trust & Buyer Confidence
“Great products and very good service: very easy and very fast international delivery.”
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
“Easy to find and order what you want on the website. Delivery is quick to the UK”
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.
XOF 50049
Order now and get it around Wednesday, October 07
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:
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Features & Benefits
- Compatible with GY6 50cc-100cc 139QMB and 139QMI engines.
- Features a 50mm cylinder diameter with 69mm valves for enhanced performance.
- Provides super heat dissipation to maintain engine stability.
- Constructed with high-grade materials for maximum durability and corrosion resistance.
- Designed for optimal oil saving while delivering strong power.
- Backed by professional after-sales support for your satisfaction.
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.