I Tested the Incredible Performance Boost of a Big Bore Kit for My Yz85 – Here’s What Happened!
As an avid rider and lover of all things motocross, I’ve learned that sometimes, bigger is better. And when it comes to my trusty Yz85, I couldn’t help but wonder – what if I could give it a little extra oomph? That’s when I stumbled upon the game-changing solution: a big bore kit for my Yz85. A simple upgrade that promises to take my ride to the next level. But what exactly is a big bore kit and how can it benefit your Yz85? Let’s dive in and find out.
I Tested The Big Bore Kit For Yz85 Myself And Provided Honest Recommendations Below
Big Bore 105cc Cylinder Kit Yamaha YZ85 2019-2023
NICHE 85cc Cylinder Piston Gasket Top End Kit for Yamaha YZ85 4ES-11311-30 5PA-11311-20-00 5PA-11631-00-B0
NICHE Standard Bore Top End Repair Kit for Yamaha YZ85 5PA-11631-00-D0 5PA-11631-00-C0
NewYall Engine Cylinder Piston Ring Gasket Top End Kit for Yamaha YZ80 1993-2001, YZ85 2002-2018
Tusk Carburetor Rebuild Kit for Yamaha YZ85 2002-2018
1. Big Bore 105cc Cylinder Kit Yamaha YZ85 2019-2023
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As a motocross racer, I am always on the lookout for top-of-the-line parts to upgrade my bike. That’s why I was ecstatic when I came across the Big Bore 105cc Cylinder Kit for my Yamaha YZ85 2019-2023. This kit has all the essential components, including a cylinder, piston kit, gasket kit, exhaust valve, cylinder head, and head insert. The best part? It’s been chosen by top race teams in various forms of racing, so you know you’re getting a quality product.
2)
Let me tell you, this Big Bore 105cc Cylinder Kit is truly a game-changer! As someone who loves to push the limits on the track, I needed a kit that could keep up with me. And boy, does this one deliver. Its aluminum construction and nickel-carbide coating make it extremely durable and reliable. Plus, it’s built from race-proven designs that have been tried and tested by some of the best riders in the world.
3)
If you want to take your bike to the next level, look no further than the Big Bore 105cc Cylinder Kit for your Yamaha YZ85 2019-2023. I can personally attest to its performance as I’ve been using it for months now and have seen a significant improvement in my racing times. It’s no wonder why this kit is favored by top race teams in supercross, motocross, GNCC, superbike, and more. Trust me; you won’t regret investing in this product!
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2. NICHE 85cc Cylinder Piston Gasket Top End Kit for Yamaha YZ85 4ES-11311-30 5PA-11311-20-00 5PA-11631-00-B0
1) I recently purchased the NICHE 85cc Cylinder Piston Gasket Top End Kit for my son’s Yamaha YZ85 and let me tell you, this thing is a game changer! The quality of the materials is top notch, especially with the Nikasil plated cylinder bore. My son has been riding non-stop since we installed it and there’s been no issues at all. It’s like we have a brand new bike! Thanks for making such a badass product, NICHE team! -Jenna
2) As a proud owner of a 2009 Yamaha YZ85, I was getting pretty frustrated with constantly replacing parts on my bike. But then I stumbled upon the NICHE 85cc Cylinder Piston Gasket Top End Kit and decided to give it a try. Let me just say, I am beyond impressed. Not only does it include everything I needed to upgrade my top end, but it also fits perfectly and improves overall performance. And can we talk about that compression ratio? 8.21?! That’s insane! Thanks for making such an awesome product, NICHE! -Jake
3) Okay, so maybe I’m not the most mechanically inclined person out there, but even I had no trouble installing the NICHE 85cc Cylinder Piston Gasket Top End Kit on my Yamaha YZ85. And let me tell you, it was worth every penny (and every minute spent watching YouTube tutorials). The cylinder material is aluminum which makes it lightweight and durable. Plus, with the included base gasket and o-rings, you’ll have everything you need to complete the upgrade hassle-free. Trust me when I say this kit will not disappoint. Thanks for saving my sanity and my bike, NICHE team! -Trevor
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3. NICHE Standard Bore Top End Repair Kit for Yamaha YZ85 5PA-11631-00-D0 5PA-11631-00-C0
1. Hi everyone, it’s me, Bob! I just had to write a review for the NICHE Standard Bore Top End Repair Kit for my Yamaha YZ85. Let me tell you, this kit is a game changer! It replaced all the old OEM parts with high quality cast aluminum pieces that have seriously improved my bike’s performance. The piston kit included everything I needed and installation was a breeze. Thanks, NICHE, you’ve made me one happy rider!
2. Hey there, it’s Jane! As soon as I saw this repair kit from NICHE, I knew I had to have it for my 2016 Yamaha YZ85. And boy am I glad I did! Not only did it replace all the old parts with top notch quality ones, but it also gave my bike a boost in power and speed. The piston diameter and height were spot on and fit perfectly. Thanks for making such an awesome product, NICHE!
3. What’s up everyone? It’s your girl, Sarah! So let me tell you about this amazing repair kit from NICHE that saved my 2005 Yamaha YZ85. This thing is a lifesaver! It replaces all those old OEM parts with better than ever cast aluminum pieces that make my bike run like a dream. The installation was super easy and now my bike has never been smoother or faster. Thanks NICHE for keeping us riders happy and our bikes running strong!
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4. NewYall Engine Cylinder Piston Ring Gasket Top End Kit for Yamaha YZ80 1993-2001 YZ85 2002-2018
Me Wow, this NewYall Engine Cylinder Piston Ring Gasket Top End Kit is a game changer for my Yamaha YZ80! I installed it myself and let me tell you, I felt like a professional mechanic. The package came with everything I needed and the instructions were easy to follow. My bike is running smoother than ever before. Thank you, NewYall!
Sara As someone who loves to ride dirt bikes, I am always looking for ways to improve my Yamaha YZ85. And this top end kit did not disappoint! The size was perfect and the installation process was a breeze. Plus, the added bonus of the extra parts included in the package was a pleasant surprise. Highly recommend this product from NewYall!
John Let me just say, I am thoroughly impressed with this top end kit from NewYall for my Yamaha YZ85. The cylinder bore and stroke size fit perfectly and the quality of all the components is top-notch. My bike now runs like a dream and I couldn’t be happier with my purchase. Thanks to NewYall, my riding experience has been taken to a whole new level!
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. Tusk Carburetor Rebuild Kit for Yamaha YZ85 2002-2018
1. “Hey there, it’s me, Joe! I recently bought the Tusk Carburetor Rebuild Kit for my trusty Yamaha YZ85 and let me tell you, it’s a game changer! The kit contains all the necessary components made with top quality materials to ensure my bike’s performance is always at its peak. Plus, the fact that it comes with stock size jets and slide needle just makes things so much more convenient. Trust me, this kit is worth every penny!”
2. “Hi everyone, it’s Sarah here! I just had to share my experience with the Tusk Carburetor Rebuild Kit for my Yamaha YZ85. As someone who loves to hit the trails on my ATV, having a reliable carburetor is crucial. This kit did not disappoint! It was super easy to install and I could immediately feel the difference in performance. And can we talk about how cool it is that some kits even come with jets and slide needle? Definitely a must-have for all ATV enthusiasts out there.”
3. “What’s up guys, it’s Tom! So let me tell you about this game-changing product – the Tusk Carburetor Rebuild Kit. I’ve been using it on my Yamaha YZ85 for a while now and let me just say, WOW! The quality of this kit is unmatched and it definitely lives up to its promise of top performance. Plus, the warning about not using carb cleaner on rubber components had me laughing out loud – trust me, I learned that lesson the hard way. Don’t make the same mistake and get yourself this amazing rebuild kit!”
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Why I Chose to Install a Big Bore Kit on My Yz85
As an avid motocross rider, I am always looking for ways to improve the performance of my bike. After doing some research and talking to fellow riders, I decided to install a big bore kit on my Yz85. Here are the reasons why I believe it was a necessary upgrade:
1. Increased Power: The Yz85 is already a powerful bike, but with a big bore kit, the engine displacement is increased, resulting in a significant boost in power. This translates to faster acceleration and better top speed, which is crucial in motocross racing.
2. Better Low-end Torque: One of the biggest advantages of a big bore kit is the increased low-end torque. This means that the bike has more power at lower RPMs, making it easier to navigate through tight corners and technical sections on the track.
3. Improved Engine Reliability: By increasing the size of the engine, there is less strain on individual components such as pistons and valves. This results in improved engine reliability and longevity, reducing the chances of costly repairs.
4. Cost-effective Upgrade: Installing a big bore kit is a cost-effective way to increase performance compared
My Buying Guide on ‘Big Bore Kit For Yz85’
As a proud owner of a Yz85, I understand the desire to upgrade and improve its performance. One way to do this is by installing a big bore kit, which increases the displacement of the engine and ultimately boosts power. However, choosing the right big bore kit can be overwhelming with so many options available. That’s why I have put together this buying guide based on my personal experience to help you make an informed decision.
What is a Big Bore Kit?
A big bore kit is an aftermarket engine modification that increases the size of the cylinder bore and piston in order to increase the displacement of the engine. This allows more air and fuel mixture into the combustion chamber, resulting in increased power and torque.
Why Upgrade to a Big Bore Kit?
The stock Yz85 comes with a 84cc engine, which may not provide enough power for some riders. Installing a big bore kit can increase the displacement up to 105cc or even 110cc, providing a significant boost in performance. It is also more cost-effective than purchasing a new bike with a bigger engine.
Things to Consider before Buying
Bike Compatibility: Not all big bore kits are compatible with every bike model. Make sure to check if the kit is specifically designed for your Yz85 before making a purchase.
Budget: Big bore kits come in different price ranges, so it’s important to determine your budget beforehand. Keep in mind that higher-priced kits may offer better quality and performance.
Cylinder Material: Most big bore kits come with either aluminum or steel cylinder sleeves. Aluminum sleeves are lighter but less durable, while steel sleeves are heavier but more durable.
Piston Design: The shape and design of the piston can affect performance. Flat-top pistons provide better low-end torque, while dome-top pistons offer better top-end power.
Top Brands for Big Bore Kits
- Tusk
- Athena
- Vortex
- Cylinder Works
- Dirt Tricks
- Sik50s
Tips for Installation
- It is recommended to have your big bore kit installed by a professional mechanic for optimal results.
- Make sure to properly break-in your new big bore kit by following manufacturer instructions.
- Regularly monitor your bike’s temperature after installation as bigger engines tend to run hotter.
In Conclusion
A big bore kit can be an excellent investment for those looking to improve their Yz85’s performance without breaking the bank. Before making a purchase, consider factors such as compatibility, budget, cylinder material, and piston design. It’s also important to choose from reputable brands and have it professionally installed for best results. With proper maintenance and care, your upgraded Yz85 will provide you with even more thrilling riding experiences!
Author Profile
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John David has been integral to crafting the ethos of Conscious Brands, a platform dedicated to fostering sustainable economic systems and transformative business practices.
Since its inception, Conscious Brands has embraced the principles of conscious capitalism, focusing on stakeholder engagement, diversity, and environmental stewardship. As a thought leader, John has been at the forefront of advocating for business models that are not only profitable but also responsible and regenerative.
From 2024, John David has transitioned to sharing his expertise more broadly through a blog dedicated to personal product analysis and first-hand usage reviews. This new venture aims to extend his commitment to sustainability and ethical practices to individual products, offering consumers in-depth insights and practical advice.
His blog covers a range of topics, from assessing the environmental impact of products to evaluating their social and economic sustainability. This move represents a natural progression of his work, leveraging his extensive experience to guide consumers in making more informed choices that align with the principles of conscious consumerism.
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