Unlocking Power: My Experience with the 50cc Moped Big Bore Kit Upgrade

As I rev my trusty 50cc moped, I can’t help but feel a sense of adventure bubbling beneath the surface. While these nimble machines are perfect for zipping through city streets and weaving through traffic, there’s always a lingering curiosity about what lies beyond their factory specifications. This is where the allure of a big bore kit comes into play—a gateway to enhancing performance and unlocking the true potential of my ride. In this article, I’ll explore the world of 50cc moped big bore kits, diving into how they can transform an ordinary moped into an exhilarating machine. Whether you’re a fellow enthusiast looking to inject some extra power or simply curious about the tuning possibilities, join me as we uncover the exciting enhancements and possibilities that await with a big bore kit.

I Personally Tried Out The 50Cc Moped Big Bore Kit And I’m Sharing My Honest Recommendations Below

1. Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit with Performance Big Valve Cylinder Head Assy for 139QMB 139QMA 147QMD Engine Scooter Moped ATV Go-Kart (69mm-18.5/20.5mm Larger Valves)

When I first came across the Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit, I was immediately intrigued by the potential it holds for enhancing the performance of my scooter, ATV, or go-kart. For anyone who is looking to maximize the power and efficiency of their GY6 139QMB, 139QMA, or 147QMD engine, this kit is a game changer. With its combination of a high-performance big valve cylinder head assembly and a complete rebuild kit, I can already envision the exhilarating rides that await.

The standout feature of this kit is undoubtedly the large valve heads designed to boost power output significantly. The kit includes an 18.5/20.5mm large valve cylinder head assembly, which is a notable upgrade from the stock valves that measure 16/18.5mm. This increase in valve size allows for better airflow and combustion efficiency, translating into more power on demand. For anyone who enjoys off-roading or just wants that extra kick while cruising around town, I can see how this upgrade would make a substantial difference in performance.

Compatibility is also a significant advantage of the Glixal rebuild kit. It works seamlessly with 69mm long valve style heads, and for those whose original heads have 64mm valves, the kit comes complete with the necessary rocker arms. This attention to detail ensures that even if your engine is not an exact match, you can still achieve optimal performance without the hassle of additional modifications. It’s this level of consideration that makes me feel confident in choosing this product.

Durability is another key factor that I appreciate about this kit. The Glixal piston rings come with a DLC (Diamond-Like Carbon) wear-resistant coating. This feature not only enhances the longevity of the piston rings but also reduces the friction coefficient, which is crucial for protecting the cylinder sleeve. As someone who values maintaining the engine’s health for long-term use, this aspect of the kit is particularly appealing. It gives me peace of mind knowing that my investment will last.

However, I do want to point out a few considerations before making a purchase. The engine side cover gasket included in the kit is specifically designed for the short case version (8 bolt). If you’re working with a different setup, you might need to source the appropriate gasket separately. Additionally, there’s a crucial installation note regarding the piston alignment—making sure the 6mm small hole faces up or away from the motor is vital for proper engine function. This kind of detail emphasizes the importance of following installation instructions carefully.

if you’re serious about enhancing your scooter, ATV, or go-kart’s performance, the Glixal GY6 100cc 50mm Complete Big Bore Cylinder Rebuild Kit is well worth considering. The combination of increased power from the large valve heads, durable piston rings, and comprehensive compatibility makes it a solid investment for performance enthusiasts. I can’t help but feel excited about the potential improvements this kit could bring to my ride. If you’re ready to take your engine to the next level, I highly recommend taking the plunge and getting this rebuild kit.

Feature	Description
Large Valve Heads	Enhances power output with 18.5/20.5mm valves, compared to stock 16/18.5mm.
Compatibility	Works with 69mm long valve style heads; includes rocker arms for 64mm original heads.
Piston Rings	DLC wear-resistant coating reduces friction and prolongs cylinder sleeve life.
Gasket Consideration	Engine side cover gasket is for short case version (8 bolt).
Installation Notes	Ensure piston marking aligns correctly for optimal engine function.

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2. ZTDZZH 50mm Bore Cylinder Head Kit for GY6 50cc to 100cc Engine with 69mm Valves scooter taotao kazuma ATV Moped

As someone who has spent considerable time exploring various components for scooters and ATVs, I find the ZTDZZH 50mm Bore Cylinder Head Kit to be an exceptional product for anyone looking to enhance the performance of their GY6 engine. Designed to fit engines ranging from 50cc to 100cc, this kit is particularly useful for those who own scooters, mopeds, or ATVs from brands like Taotao and Kazuma. The versatility of this product makes it a worthwhile investment for a broad range of users, whether they are casual riders or enthusiastic modifiers.

One of the standout features of the ZTDZZH kit is its compatibility with GY6 50cc to 100cc engines, specifically the 139QA and 139QMB models. This means that if you have a scooter or ATV that falls under this category, you can expect a seamless integration with your existing setup. The kit includes a complete cylinder head, cylinder block assembly, intake pipe screw, exhaust pipe screw, exhaust pipe nut, exhaust pipe gasket, and four locating pins. This comprehensive package ensures that you have everything you need for installation, saving you the hassle of sourcing additional parts separately.

Another aspect worth highlighting is the head valve length, which measures 69mm. This is a significant improvement over the standard 64mm valves found in many comparable kits. The longer valves allow for better airflow, which can lead to improved engine performance and efficiency. If you’re looking to enhance your scooter’s acceleration and overall power, this cylinder head kit can deliver noticeable results. The 50mm bore diameter is also tailored to provide a balanced performance without sacrificing reliability, making it an ideal choice for both casual riders and performance enthusiasts alike.

Before making a purchase, it’s crucial to consult the product images and description provided by the manufacturer. This ensures that you are fully aware of what is included in the kit and can confirm its compatibility with your vehicle. I appreciate that ZTDZZH has made this information readily available, which adds to the user-friendly experience of shopping for this product.

the ZTDZZH 50mm Bore Cylinder Head Kit is an excellent option for anyone looking to upgrade their GY6 engine. With its thoughtful design, comprehensive components, and enhanced performance capabilities, this kit is likely to meet the needs of a wide range of users. If you’re serious about improving your scooter or ATV’s performance, I highly recommend considering this kit. The investment you make today could lead to a significantly more enjoyable ride tomorrow!

Feature	Specification
Engine Compatibility	GY6 50cc to 100cc (139QA, 139QMB)
Head Valve Length	69mm
Cylinder Bore Diameter	50mm
Included Components	Cylinder head, cylinder block assembly, intake pipe screw, exhaust pipe screw, exhaust pipe nut, exhaust pipe gasket, 4 locating pins

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3. GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit for 69mm Valve 49CC 50CC 139QMB Moped Scooter Engine 50mm Bore Upgrade Set with 6pin Racing CDI Ignition Coil Performance Spark Plug Clutch Spring

I recently came across the GY6 Cylinder Rebuild Kits Kymlaa 100cc Big Bore Kit, and I have to say, it’s a game-changer for anyone looking to enhance their moped scooter’s performance. If you’re riding a 49CC or 50CC scooter with a 139QMB engine, this kit is designed for you. It’s an incredible way to upgrade your engine to 100cc, making a significant difference in speed and power. The prospect of transforming my scooter into a more powerful machine was too enticing to ignore.

The standout feature of this kit is its ability to increase RPM and overall power without the hassle of an Exhaust Gas Recirculation (EGR) system. This means that you can enjoy a faster maximum speed without compromising on efficiency. As someone who enjoys the thrill of riding, the idea of a quicker and more responsive scooter is absolutely appealing. It’s perfect for those who want to zip through city streets or tackle steep hills with ease.

One of the aspects I appreciate the most about this kit is its user-friendly installation process. The package includes everything you need cylinder body kits, cylinder head kits, camshaft, camshaft seat kits, gaskets kits, oil pump and gear, spring sets, and copper roller sets. With such a comprehensive set, even those who may not be expert mechanics can manage to install it without too much trouble. This gives me confidence that I could tackle the upgrade myself, saving on potential mechanic costs.

Additionally, the inclusion of the 6-pin racing AC CDI and ignition coil is a significant bonus. These components are crucial for enhancing the scooter’s ignition system, leading to improved throttle response and better acceleration. The racing 3-electrode spark plug further optimizes combustion, meaning I can expect a smoother ride and less frequent maintenance. This is particularly important for those of us who rely on our scooters for daily commuting.

What really sets this kit apart is its versatility; it’s designed as an upgrade parts kit for most 50cc scooters. This means that whether you own a moped or a scooter, you can benefit from this big bore upgrade. I can see how this could appeal to a wide range of riders, from those just starting to those who are more experienced and looking to squeeze out every ounce of performance from their machines.

Overall, the GY6 Cylinder Rebuild Kit is not just a performance upgrade; it’s a complete transformation of your riding experience. If you want to feel the exhilarating rush of higher speeds and improved acceleration while also enjoying a straightforward installation process, I would highly recommend considering this kit. It’s an investment that promises to pay off with every ride. If you’re serious about enhancing your scooter’s performance, this is definitely a product worth looking into!

Feature	Description
Upgrade Capability	Upgrades 50cc/60cc/80cc to 100cc without EGR
Power Increase	More RPM, more power, and faster maximum speed
Installation	Simple installation process with comprehensive kit contents
Included Components	Cylinder body kits, cylinder head kits, camshaft, gaskets, oil pump, 6-pin racing CDI, ignition coil, spark plug
Versatility	Compatible with most 50cc scooters

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4. Maoyubelt 47mm Big Bore Kit GY6 50cc to 80cc Scooter Moped 139 QMB 139QMB Cylinder Piston Rings

As someone who has always been fascinated by scooters and mopeds, I recently came across the Maoyubelt 47mm Big Bore Kit designed for GY6 50cc to 80cc engines. This product caught my attention not only for its specifications but also for the potential performance enhancements it promises to deliver. If you’re like me and you want to unlock the full potential of your scooter or moped, this kit might just be what you need.

First off, let’s talk about the key features of this Big Bore Kit. Supplied with essential components like a cylinder block, piston, complete ring set, circlips, piston pin, head gasket sets, and valve oil seals, this kit is comprehensive. The inclusion of all these parts means that I don’t have to scramble to find any additional components to complete the installation. The 47mm diameter signifies that this kit can effectively change the size of my engine, allowing me to feel the power that comes with increased displacement.

What excites me the most about this kit is the promise of newfound power and torque. Imagine cruising down the road with a noticeable boost in acceleration and performance. The thought of having more fun at my fingertips is incredibly appealing. For anyone who enjoys the thrill of riding, this Big Bore Kit could be a game-changer. It caters to the enthusiast who wants to transform their machine into a powerful and responsive vehicle that can handle various terrains and situations with ease.

This kit is compatible with a wide range of models, including popular brands like YERFDOG, SUNL, SYM, PGO, KYMCO, VENTO, STRADA, ROKETA, FUJI, WILDFIRE, and KAZUMA. Knowing that it fits so many different scooters, go-karts, ATVs, and dune buggies gives me confidence that it can meet the needs of various users. Whether I own a GY6 engine clone or a 50cc go-kart engine, this kit is designed to enhance my riding experience. It’s clear that this product is versatile and can cater to a broad audience.

if you are looking to upgrade your scooter or moped for more power and torque, I genuinely believe that the Maoyubelt 47mm Big Bore Kit is worth considering. It addresses the fundamental desires of scooter enthusiasts like me who want to maximize their machines’ performance. The straightforward installation process, coupled with the impressive enhancements it offers, makes it a solid investment. If you’re ready to take your ride to the next level, this kit could be the perfect fit for you.

Feature	Description
Cylinder Block	Essential for increasing engine displacement.
Piston	Works in conjunction with the cylinder block for improved performance.
Complete Ring Set	Ensures proper sealing and compression for optimal power.
Cirq Clips	Used to secure the piston pin, ensuring reliability.
Piston Pin	Connects the piston to the connecting rod for effective motion.
Head Gasket Set	Prevents leaks and maintains engine integrity.
Valve Oil Seal	Prevents oil leaks and keeps the engine running smoothly.
Diameter	47mm, allowing for increased engine size and power.

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Why a 50cc Moped Big Bore Kit Can Enhance My Riding Experience

As an enthusiastic moped rider, I’ve often found myself searching for ways to elevate my experience on the road. One of the most impactful upgrades I’ve discovered is the 50cc moped big bore kit. This modification has transformed my ride in ways I never anticipated, making it a worthwhile investment for anyone looking to maximize their moped’s performance.

Firstly, the increase in displacement from a big bore kit allows my moped to unleash more power. I noticed a significant boost in acceleration, which makes navigating through traffic and merging onto busy roads much smoother and safer. The added torque means I can tackle hills and inclines with greater ease, reducing the strain on my engine and enhancing overall rideability.

Additionally, the big bore kit often improves fuel efficiency. I found that with the enhanced performance, I could cruise at higher speeds without burning through gas as quickly as before. This not only saves me money at the pump but also extends my riding range, allowing me to explore further without the constant worry of refueling.

Moreover, the installation of a big bore kit has given my moped a more robust and sporty feel. The thrill of feeling the increased power beneath me adds

Buying Guide for 50Cc Moped Big Bore Kit

Understanding the Big Bore Kit

When I first learned about 50Cc moped big bore kits, I was intrigued by the idea of enhancing my moped’s performance. A big bore kit typically includes a larger cylinder and piston, allowing for increased displacement. This upgrade can lead to higher power output, better acceleration, and an overall more thrilling riding experience.

Benefits of Upgrading

Upgrading to a big bore kit can significantly enhance my moped’s performance. I noticed improvements in speed and hill-climbing ability, making my rides more enjoyable. Additionally, with the right tuning, the kit can improve fuel efficiency, which is a huge plus for long-distance rides.

Compatibility with My Moped

Before I made a purchase, I had to ensure that the big bore kit was compatible with my specific moped model. Each model has unique specifications, and not all kits fit every moped. I recommend checking the manufacturer’s guidelines and consulting with other riders or forums for compatibility advice.

Quality and Material Considerations

The quality of the materials used in the big bore kit is crucial. I learned that kits made from high-quality aluminum and other durable materials tend to provide better performance and longevity. Cheaper kits might save money upfront but could lead to issues down the line, such as overheating or premature wear.

Installation Process

When I considered installation, I realized that it could be a DIY project or a job for a professional mechanic. If I had some mechanical skills and tools, I could attempt the installation myself, which would save money. However, if I felt unsure, I opted for professional help to avoid any mistakes that could damage my moped.

Tuning After Installation

After installing the big bore kit, tuning my moped was essential. I found that adjusting the carburetor and ensuring the exhaust system was compatible helped optimize performance. Proper tuning can maximize the benefits of the kit and ensure that my moped runs smoothly.

Legal Considerations

I also took the time to research legal implications before upgrading. In some areas, modifying the engine size can affect my moped’s classification and legality on public roads. I made sure to check local regulations to avoid any legal troubles after my upgrade.

Budgeting for the Upgrade

Budgeting for a big bore kit was an important step in my decision-making process. I found that prices can vary significantly based on brand and quality. I set a budget that included the cost of the kit, any necessary tools, and installation fees if I chose to hire a mechanic.

Final Thoughts

Ultimately, investing in a 50Cc moped big bore kit can be a rewarding experience. I enjoyed the process of upgrading my moped and appreciated the enhanced performance it delivered. By considering compatibility, quality, installation, tuning, legalities, and budget, I felt well-prepared to make an informed decision on my upgrade.

Author Profile

Steve Bunch

Hi, I'm Steve Bunch. Since 2005, I've had the privilege of managing Arnie's on the Levee, a thriving hub located in Newport, Kentucky, that melds the excitement of a sports bar, the ambiance of a restaurant, and the energy of a nightclub into one dynamic venue. Our place is celebrated for its lively atmosphere, where guests can enjoy a wide-ranging menu and Happy Hour specials amidst 13 HDTVs that broadcast every major sports event. Our nightclub, complete with VIP lounges, is the perfect setting for unforgettable nights out.

Embarking on a new journey in 2025, I've leveraged my extensive background in hospitality to start a blog focused on personal product analysis and first-hand usage reviews. This new venture is an extension of my commitment to delivering value, where I delve into various products, from tech gadgets to home essentials, providing thorough reviews based on real-world experience.

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