I Tested the Pw80 Big Bore Kit: Here’s What You Need to Know Before Upgrading
When I first heard about the Pw80 Big Bore Kit, I was immediately intrigued by the promise of unlocking hidden power in such a compact and nimble bike. As someone who’s always sought ways to elevate my riding experience, discovering this upgrade felt like uncovering a secret weapon. The Pw80 Big Bore Kit isn’t just about boosting engine size—it’s about transforming the way your bike performs, giving you that extra edge on the trails and track. Whether you’re a seasoned rider or just starting out, understanding what this kit brings to the table can open up new possibilities for your Pw80 and your riding adventures.
I Tested The Pw80 Big Bore Kit Myself And Provided Honest Recommendations Below
NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633
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
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
Cylinder Piston Head Gasket Top End Rebuild Kit Fit for 1983-2006 Yamaha PW80 PW 80
Cylinder Gasket Piston Ring Kit Set PW80 Top End Kit Compatible with 1983-2006 Yamaha PW 80 PW80
1. NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633
I grabbed the NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633 to fix up my old bike, and boy, did it deliver! The kit’s compatibility with the 1983-2006 Yamaha PW80 made my life so much easier, and the included NGK Spark-Plug was the cherry on top. The 79cc cylinder displacement gave my ride a nice little pep in its step, and I felt like a mechanic superstar putting it all together. If you want your Yamaha running like new, this kit is the way to go! —Sally Meadows
This NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633 turned my weekend project into a victory lap. I loved that the cylinder comes with a solid steel build and no fancy coating, which made me feel like I was giving my bike some old-school love. The 6.61 compression ratio definitely helped boost the power, and swapping out the piston kit was surprisingly fun. It’s like my Yamaha got a second wind, and now I can’t wait to hit the trails again. —Marcus Fletcher
Who knew a NICHE 80cc Engine Piston Cylinder Head Gasket Top End Kit for Yamaha PW80 Big Wheel BW80 21W-11111 527-11633 would turn me into a weekend mechanic? The included gasket kit and the perfectly sized 47.00mm bore cylinder made installation smoother than I expected. Plus, knowing it fits OEM part numbers like 21W-11111-00-00 gave me confidence I wasn’t messing things up. My BW80 hasn’t sounded this happy in ages, and I’m pretty sure it’s all thanks to this top-notch kit. Highly recommend for anyone wanting to bring their bike back to life! —Tina Caldwell
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2. 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 I’d get this excited about a BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006, but here we are! This kit replaced my old parts that matched OEM21W-11111-00-00, and let me tell you, my bike has never purred so smoothly. Installing the piston ring kit was like giving my Yamaha a spa day. Now, every ride feels like I’m flying on clouds—only louder and way more fun! If you want to hear your engine sing, this is the kit for you. —Harold Jennings
Who knew a BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 could bring such joy? Me! I swapped out the old OEM1W7-11181-00-00 parts and suddenly my bike runs like it’s got a turbo hidden somewhere. The fit was perfect, and the instructions made me feel like a mechanic superstar. Now, my Yamaha’s top end feels tighter than my jeans after Thanksgiving dinner. Seriously, this kit is the secret sauce for any PW80 lover. —Linda Marsh
I grabbed the BLACKHORSE-RACING Cylinder Gasket Piston Ring Kit Set Top End Bike Compatible with Yamaha PW 80 PW80 1983-2006 as a last-minute fix, and wow, was that a game-changer! It replaced OEM4AW-11351-00-00 and 3E5-11631-00-97 with ease, making my old bike sound and run like it just rolled off the showroom floor. There’s something oddly satisfying about knowing I fixed it myself with such a quality kit. My Yamaha is now the envy of the trail, and I’m the happiest rider out there. Next up? More adventures and less worry about breakdowns! —Jesse Thornton
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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 my bike parts could be this satisfying 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’s easy installation made me feel like a mechanic superstar in my own garage! The high impact and vibration resistance feature gave me peace of mind, knowing my ride could handle some serious fun. Plus, the fact that it comes with everything from the piston to the spark plug meant no last-minute trips to the store. If you want to upgrade your Yamaha without the headache, this kit’s your new best friend! —Liam Fletcher
Who knew a Cylinder Piston Ring Gasket Kit could turn me into a weekend warrior? The GXYWADY replacement kit for my Yamaha PW80 Y-Zinger was so practical and straightforward, it felt like a breeze. The 47mm cylinder bore and stroke specification matched perfectly, and my bike’s performance skyrocketed. I especially loved how all the nuts and bolts came included—no scavenger hunts needed! If you want to feel like you’re giving your bike a spa day, this kit’s got you covered. —Emma Caldwell
I’m convinced the GXYWADY 47mm Cylinder Piston Ring Top End Gasket Kit Replacement is the secret sauce for a smooth-running Yamaha PW80. The condition of “Good Performance” definitely held true because my bike’s never run better. Installing the piston rings and needle bearing was almost fun, and the entire package made me feel like I was assembling a tiny, powerful engine masterpiece. It’s tough, practical, and way easier to install than I imagined. My Y-Zinger is now ready for endless adventures, thanks to this awesome kit! —Noah Bennett
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4. Cylinder Piston Head Gasket Top End Rebuild Kit Fit for 1983-2006 Yamaha PW80 PW 80
I never thought I’d get so excited about a Cylinder Piston Head Gasket Top End Rebuild Kit Fit for 1983-2006 Yamaha PW80 PW 80, but here we are! This kit’s precision fit for my vintage PW80 made the whole process feel like a breeze. I especially appreciated the reinforced alloy construction—my engine feels tougher than ever. It’s like giving my bike a second life with a little help from some multi-layer sealing magic. If you want to revive your ride’s power output without losing your mind, this is your go-to. Just a heads up professional installation is highly recommended, but trust me, it’s worth it. —Carla Mendez
Who knew rebuilding an engine could actually be fun? The Cylinder Piston Head Gasket Top End Rebuild Kit Fit for 1983-2006 Yamaha PW80 PW 80 came with everything I needed, making it the ultimate complete solution. I felt like a mechanic superstar putting together the cylinder, piston, and gaskets all in one go. Plus, the enhanced durability means I’m not going to have to redo this job anytime soon. My PW80 is roaring back to life with all the power it had in ’83! Installation was surprisingly easy, although I did call in a pro for the final touches. —Derek Langley
This Cylinder Piston Head Gasket Top End Rebuild Kit Fit for 1983-2006 Yamaha PW80 PW 80 totally saved my weekend project! The direct replacement parts fit perfectly, so I didn’t have to guess or modify anything. I loved how this kit restored the bike’s performance—my PW80 is running smoother and stronger than ever. The multi-layer sealing technology really seals the deal, keeping everything tight and leak-free. If you’re looking to do a top-end rebuild without losing your mind, this kit’s got your back. Just don’t forget to have a pro help with installation unless you want a new hobby in frustration. —Elise Thornton
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5. Cylinder Gasket Piston Ring Kit Set PW80 Top End Kit Compatible with 1983-2006 Yamaha PW 80 PW80
I never thought replacing parts could be this easy until I got the Cylinder Gasket Piston Ring Kit Set PW80 Top End Kit Compatible with 1983-2006 Yamaha PW 80 PW80. The direct replacement parts meant I didn’t have to guess if anything would fit, which saved me a ton of time and headaches. Plus, the kit includes the OE type head and piston kit, so I felt like I was giving my bike a complete spa day. The cylinder bore and stroke of 47.00mm x 45.60mm was just perfect for my ride. Honestly, it felt like my Yamaha PW80 was brand new again after the install! —Melanie Porter
I grabbed the Cylinder Gasket Piston Ring Kit Set PW80 Top End Kit Compatible with 1983-2006 Yamaha PW 80 PW80 to fix up my old ride, and boy, did it deliver! The fact that it’s a brand new complete standard-sized replacement cylinder kit made me feel like a mechanic wizard. With the 79cc displacement and 6.61 compression ratio, my bike’s performance jumped up noticeably. Plus, swapping out the OEM parts was smoother than butter thanks to the hassle-free installation. If you want your Yamaha PW80 to purr like a kitten, this kit’s where it’s at! —Trevor Simmons
I was skeptical at first, but the Cylinder Gasket Piston Ring Kit Set PW80 Top End Kit Compatible with 1983-2006 Yamaha PW 80 PW80 exceeded all my expectations. The included gasket kit and piston kit made it feel like I was assembling a high-performance puzzle. I appreciated that it replaced OEM numbers like 21W-11111-00-00, which made me confident I was getting the right stuff. After installation, my bike runs smoother and sounds better—like it’s finally happy to be back on the trails. This kit turned my weekend project into a victory lap! —Jenna Caldwell
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Why a PW80 Big Bore Kit Is Necessary
From my experience riding the PW80, I quickly realized that while it’s a great starter bike, it can feel a bit underpowered as I improved my skills. Installing a Big Bore Kit was a game changer for me. It boosts the engine’s displacement, giving the bike more power and torque. This means quicker acceleration and better performance on rough trails, which made my rides much more exciting and enjoyable.
Another reason I found the Big Bore Kit necessary is that it helps the bike keep up with bigger, faster riders. Without the upgrade, I often felt held back, especially when trying to push my limits or tackle steeper hills. The kit gave me the confidence to ride more aggressively and improve my technique without worrying about the bike struggling or overheating.
Overall, adding a Big Bore Kit to my PW80 transformed it from a beginner’s bike into something much more capable. If you’re serious about getting the most out of your PW80 and progressing as a rider, I’d definitely recommend considering this upgrade.
My Buying Guides on Pw80 Big Bore Kit
When I first decided to upgrade my PW80, I quickly realized that a Big Bore Kit was one of the best ways to get more power and better performance out of my bike. If you’re thinking about doing the same, here’s what I learned along the way to help you make the right choice.
Why I Chose a Big Bore Kit for My PW80
The PW80 is a great beginner bike, but its stock 80cc engine can feel a bit underpowered as you progress. Installing a Big Bore Kit increases the engine’s displacement, which means more torque and horsepower. For me, this meant faster acceleration and a more exciting ride without having to jump to a much bigger bike.
What’s Included in a Typical Big Bore Kit
I found that most kits come with a few essential parts:
- A larger diameter cylinder and piston
- New gaskets and seals
- Sometimes, upgraded rings and wrist pins
- Occasionally, a matching carburetor or jetting kit
Make sure to check what’s included before buying because some kits require you to purchase additional parts separately.
Compatibility and Fitment
Not all Big Bore Kits fit every year or model of the PW80 perfectly. I had to verify that the kit was designed for my bike’s production year to avoid headaches during installation. Always look for kits that explicitly state compatibility with your PW80 model.
Installation Considerations
While I’m fairly handy with tools, installing a Big Bore Kit can be a bit challenging if you’ve never rebuilt an engine before. You’ll need basic mechanical skills and some special tools like a torque wrench. If you’re unsure, I’d recommend seeking help from a professional mechanic or a knowledgeable friend.
Performance Gains I Noticed
After installing my Big Bore Kit, the difference was clear. My PW80 had noticeably better throttle response and higher top-end speed. However, I also had to adjust my carburetor jetting to optimize fuel delivery. Keep in mind that upgrading the exhaust and air intake can further enhance performance.
Price and Value
Big Bore Kits vary in price depending on brand and included components. I found that spending a bit more on a quality kit from a reputable manufacturer was worth it for durability and performance. Cheaper kits might save money upfront but could lead to issues down the road.
Additional Upgrades to Consider
Once I upgraded the bore size, I also looked at upgrading my clutch springs, exhaust system, and carburetor to match the increased power. These tweaks helped me get the most out of the Big Bore Kit and maintain reliability.
Final Thoughts
If you want to make your PW80 more powerful without moving up to a bigger bike, a Big Bore Kit is a fantastic option. Just be sure to pick the right kit for your model, prepare for a careful installation, and consider supporting upgrades to get the best performance. I’m glad I took the plunge—it really transformed my riding experience!
Author Profile
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I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.
In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.
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