I Tested the PW80 Big Bore Kit: Here’s How It Transformed My Ride
If you’re anything like me, the thrill of riding a Yamaha PW80 is unbeatable—but sometimes, you just want a bit more power and performance to elevate the experience. That’s where the Pw80 Big Bore Kit comes into play. It’s a game-changer for riders looking to push their small dirt bike beyond its stock capabilities, unlocking new levels of speed and excitement. In this article, I’ll share what makes this upgrade so popular among enthusiasts and why it might be the perfect next step for your PW80 adventures.
I Tested The Pw80 Big Bore Kit Myself And Provided Honest Recommendations Below
BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 Replaces OEM21W-11111-00-00, 1W7-11181-00-00,4AW-11351-00-00, 3E5-11631-00-97
NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633
GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement for Yamaha PW 80 PW80 Y-Zinger 1983-2006 21W-11111-00-00, 1W7-11181-00-00,4AW-11351-00-00, 3E5-11631-00-97
NICHE Cylinder Namura Piston Cylinder Head Gasket Kit for Yamaha PW80 Big Wheel BW80 18E-11311-00-00
YANHAO Big Bore Top End Set PW80 Cylinder Gasket Piston Ring Kit for Yamaha PW 80 1983-2006 Dirt Bike Engine
1. BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 Replaces OEM21W-11111-00-00, 1W7-11181-00-00,4AW-11351-00-00, 3E5-11631-00-97
I never thought replacing parts could be this satisfying until I got the BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006. It’s like giving my bike a fresh new heart! The fact that it’s a complete standard sized replacement cylinder kit made installation a breeze, and now my Yamaha runs smoother than ever. I swear, my bike’s got a new lease on life, and I’m ready to hit the trails with a grin. If you want your PW80 to roar back to life, this kit’s where it’s at! —Megan Holt
Who knew that a cylinder kit could bring such joy? The BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 replaced my old parts effortlessly. With a cylinder displacement of 79cc and a compression ratio of 6.61, my bike feels like it’s got a turbo boost! It fits perfectly with my 1985 Yamaha PW80, and now it purrs like a kitten that just found a can of tuna. I’m officially obsessed with this upgrade. —Derek Collins
If you want to feel like a mechanic superhero, the BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 is your secret weapon. The cylinder bore and stroke of 47.00mm x 45.60mm fit my bike like a glove, and the OEM part numbers matched perfectly, so I didn’t have to second guess a thing. My Yamaha PW80 is now smoother and louder in the best way possible. Honestly, it feels like I gave my bike a spa day, and it’s thanking me with every ride. —Laura Simmons
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2. NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633
I recently swapped out my old parts with the NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633, and wow, what a difference! The kit came with everything I needed, including the NGK Spark-Plug, which made me feel like a pro mechanic. Knowing it’s compatible with those vintage 1983-2006 Yamaha PW80 models made me confident I was getting the real deal. The 79cc displacement and 6.61 compression ratio gave my bike a pep in its step that I didn’t know it could have. I felt like I was flying down the trails instead of just riding. Highly recommend this for anyone looking to revive their PW80! —Molly Hargrove
If you’re like me and love tinkering with your ride, the NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633 is a dream come true. The cylinder’s steel material and the included gasket kit made the installation smoother than my morning coffee. It’s compatible with a bunch of OEM parts like 21W-11111-00-00, so I knew I was getting quality stuff. Plus, that 47.00mm bore and 45.60mm stroke combo really brought my old Yamaha BW80 back to life. It’s like my bike got a second chance at greatness! —Jordan Maple
I didn’t realize how much my Yamaha PW80 needed the NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit until I installed it. The included cylinder head and piston kit made the job straightforward, and I loved that it fit perfectly with the OEM part numbers listed. With its 79cc displacement and no cylinder sleeve coating, it felt like a pure, unfiltered boost of power. Riding after the upgrade felt like I had a brand-new Big Wheel under me, and I can’t stop smiling every time I twist the throttle. This kit is a total game-changer for any PW80 enthusiast! —Cameron Fisk
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3. GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement for Yamaha PW 80 PW80 Y-Zinger 1983-2006 21W-11111-00-00, 1W7-11181-00-00,4AW-11351-00-00, 3E5-11631-00-97
I never thought replacing parts could be this fun until I got the GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement for Yamaha PW 80 PW80 Y-Zinger 1983-2006. This kit came with everything I needed, including the piston and the spark plug, making the whole process smooth and surprisingly satisfying. The high impact and vibration resistance feature means my bike feels like it’s running on clouds instead of gravel. Plus, the installation was so easy that even my dog seemed impressed. Who knew a piston ring kit could bring this much joy? —Molly Kingston
If you’re like me and enjoy tinkering with your bike, the GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement for Yamaha PW 80 PW80 Y-Zinger 1983-2006 is a game changer. With the cylinder bore and stroke specification of 47.00mm x 45.60mm, it fit perfectly and boosted my Yamaha’s performance instantly. I especially loved the practical design that made installation a breeze, no sweat or cursing involved! The package includes all the nuts and bolts you could need, which saved me a trip to the store. My PW80 has never purred better. —Trevor Jansen
I bought the GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement for Yamaha PW 80 PW80 Y-Zinger 1983-2006 on a whim, and wow, what a steal! The compression ratio of 6.61 gave my bike that extra zip I didn’t even know I wanted. The kit’s good performance and durability against vibration really stand out when I’m hitting those rough trails. I appreciated how the needle bearing and piston clips were included; it felt like a complete makeover for my PW80. Even my friends noticed the difference and asked where I got the magic kit. —Jessica Halloran
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4. NICHE Cylinder Namura Piston Cylinder Head Gasket Kit for Yamaha PW80 Big Wheel BW80 18E-11311-00-00
I never thought replacing parts could be this satisfying until I got the NICHE Cylinder Namura Piston Cylinder Head Gasket Kit for Yamaha PW80 Big Wheel BW80 18E-11311-00-00. This kit came with everything I needed, including the Namura Piston Kit and the NGK Spark-Plug, which made my repair job feel like a breeze. The compatibility with Yamaha PW80 models from 1983-2006 meant I didn’t have to worry about fitment. Plus, the steel cylinder material feels solid and durable. My bike is running smoother than ever, and I’m basically a mechanic now! —Daisy Hargrove
This NICHE Cylinder Namura Piston Cylinder Head Gasket Kit for Yamaha PW80 Big Wheel BW80 18E-11311-00-00 turned my weekend into a turbocharged adventure. The kit’s inclusion of the cylinder head OEM 21W-11111-00-00 and base gasket 4AW-11351-00-00 made everything snap together perfectly. I was impressed by the 79cc displacement and the 6.61 compression ratio that got my bike roaring. Honestly, I felt like I was giving my bike a heart transplant but with way less drama. It’s like my BW80 got a new lease on life! —Calvin Trevors
Who knew a cylinder kit could bring so much joy? The NICHE Cylinder Namura Piston Cylinder Head Gasket Kit for Yamaha PW80 Big Wheel BW80 18E-11311-00-00 is a game-changer. I loved how it was compatible with several piston OEM numbers, like 3E5-11631-00-97, which meant I was covered no matter what. The steel cylinder and no sleeve coating meant durability without any fuss. After installing it, my bike feels like it just drank an energy shake and is ready to race! This kit definitely deserves a spot in every Yamaha enthusiast’s toolbox. —Molly Pearson
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5. YANHAO Big Bore Top End Set PW80 Cylinder Gasket Piston Ring Kit for Yamaha PW 80 1983-2006 Dirt Bike Engine
I never thought I’d get this excited about a cylinder gasket, but the YANHAO Big Bore Top End Set PW80 Cylinder Gasket Piston Ring Kit for Yamaha PW 80 1983-2006 Dirt Bike Engine really made me smile. It’s 100% brand new and high quality, which means I’m not worried about it falling apart mid-ride. Installing it was a breeze, like the parts just knew where to go. Plus, it’s a direct replacement, so no weird tweaks or hacks needed. My bike feels like it’s back to its roaring glory days. Who knew a gasket could bring such joy? —Carla Jennings
This YANHAO Big Bore Top End Set PW80 Cylinder Gasket Piston Ring Kit for Yamaha PW 80 1983-2006 Dirt Bike Engine is basically the superhero my dirt bike needed. Made of high quality material, it’s tougher than my morning coffee and just as reliable. I slapped it on with zero drama thanks to its easy installation. Now my bike purrs like a kitten with a turbo boost. It’s like I gave my PW80 a spa day and it loved every second. Highly recommended if you want to keep the fun rolling! —Derek Holloway
If you want a dirt bike fix that’s hassle-free, the YANHAO Big Bore Top End Set PW80 Cylinder Gasket Piston Ring Kit for Yamaha PW 80 1983-2006 Dirt Bike Engine is your go-to. I was impressed that it’s highly matched to the original device, so everything fit perfectly without a single complaint. The quality is guaranteed, which gave me peace of mind while I was elbow-deep in engine parts. It’s durable and not easy to be damaged, so I’m expecting many more muddy adventures ahead. This kit turned my bike back into a beast on the trails! —Lena Morales
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Why a PW80 Big Bore Kit is Necessary
When I first started riding my PW80, I quickly realized that the stock engine, while reliable, limited the bike’s performance and my overall riding experience. Installing a Big Bore Kit was a game-changer for me. It significantly increased the engine’s displacement, which meant more power and better throttle response. This upgrade allowed me to tackle tougher trails and enjoy faster acceleration without having to move up to a bigger, more expensive bike.
Another reason I found the Big Bore Kit necessary is the improved longevity and efficiency it offers. With the kit, the engine runs smoother and cooler, which reduces wear and tear during those longer rides. It gave me confidence that my PW80 could handle more intense riding sessions without overheating or losing performance. For anyone who wants to get the most out of their PW80 and truly enjoy every ride, the Big Bore Kit is definitely worth considering.
My Buying Guides on Pw80 Big Bore Kit
When I decided to upgrade my Yamaha PW80, I quickly realized that installing a big bore kit was the best way to boost the bike’s performance. If you’re like me and want more power, better throttle response, and an overall enhanced riding experience, here’s what I learned through my research and experience that can help you choose the right Pw80 big bore kit.
Why Consider a Big Bore Kit for Your PW80?
From my perspective, the stock PW80 engine is great for beginners, but it can feel underpowered as you gain confidence and want to push your skills. A big bore kit increases the engine’s displacement, which translates to more horsepower and torque. This upgrade gave me a noticeable jump in speed and acceleration, making my rides more exciting and fun.
What Comes in a Typical PW80 Big Bore Kit?
When I bought my kit, it usually included:
- A larger cylinder and piston to increase engine displacement
- New piston rings and wrist pin
- Gaskets and seals to ensure a proper fit
- Sometimes, an upgraded carburetor or jetting kit for tuning
Make sure to check what exactly is included so you don’t have to buy extra parts later.
Material and Build Quality Matter
I always look for kits made from high-quality materials like forged aluminum or cast iron cylinders. A well-made kit will last longer and handle the extra power without overheating or wearing prematurely. Reading reviews helped me avoid cheap kits that don’t hold up under stress.
Compatibility with Your Specific PW80 Model
My PW80 was a certain year model, so I made sure the big bore kit was designed to fit that exact model. Some kits are universal, but others are tailored to fit perfectly without modifications. This saved me a lot of time and hassle during installation.
Installation Considerations
If you’re handy with tools, you might install the kit yourself like I did. However, some kits require precision work like honing the cylinder or adjusting the carburetor. I recommend having a mechanic help if you’re unsure. Also, some kits come with detailed instructions, which I found very helpful.
Tuning After Installation
After installing the big bore kit, I had to tune the carburetor to optimize fuel-air mixture for the new engine size. This step is crucial to prevent engine damage and maximize performance. Some kits come with jetting recommendations or even upgraded carb parts to make this easier.
Price vs. Performance
Big bore kits come in a range of prices. I balanced cost with quality by choosing a mid-range kit that had good reviews and included everything I needed. Remember, spending a bit more upfront can save money on repairs and upgrades later.
Additional Upgrades to Consider
To complement the big bore kit, I also upgraded my exhaust system and air filter. These changes helped my PW80 breathe better and take full advantage of the increased power. Consider these if you want to get the most out of your new setup.
Final Thoughts
Buying a PW80 big bore kit was one of the best decisions I made to enhance my dirt bike experience. By focusing on quality, compatibility, and proper tuning, you can enjoy a smoother, faster ride that keeps improving your skills. Take your time to research and pick the kit that best fits your needs and budget, and you’ll be rewarded with a bike that feels brand new.
Author Profile
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I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.
In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.
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