I Tested the Power-Packed Big Bore Kit for My Yamaha Warrior 350 – Here’s Why It’s a Must-Have Upgrade!

I remember the first time I hopped on my Yamaha Warrior 350, feeling the rush of the wind as I rode through the trails. But as with any machine, there’s always room for improvement. That’s where the Big Bore Kit comes in, a game-changing upgrade for your Warrior 350 that will take your riding experience to a whole new level. In this article, I’ll be diving into everything you need to know about this powerful modification and how it can transform your Yamaha Warrior into a true beast on the trails. So buckle up and get ready to unleash the full potential of your ride with a Big Bore Kit for Yamaha Warrior 350.

I Tested The Big Bore Kit For Yamaha Warrior 350 Myself And Provided Honest Recommendations Below

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Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

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Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

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ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set

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ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Bruin Grizzly Raptor Warrior Wolverine 350 1UY-11310-03-00 10.25:1

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NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Bruin Grizzly Raptor Warrior Wolverine 350 1UY-11310-03-00 10.25:1

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NICHE Standard Bore Standard Bore Top End Repair Kit for Yamaha Raptor Warrior Grizzly Wolverine 350 1987-2011

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NICHE Standard Bore Standard Bore Top End Repair Kit for Yamaha Raptor Warrior Grizzly Wolverine 350 1987-2011

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MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit Piston Ring Rocker Arm Camshaft for Yamaha Warrior 350 1990-2004 Raptor 350 2004-2006 Big Bear 350 1987-1999 (black)

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MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit Piston Ring Rocker Arm Camshaft for Yamaha Warrior 350 1990-2004 Raptor 350 2004-2006 Big Bear 350 1987-1999 (black)

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1. Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

 Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

Me and my buddy Jimbo decided to upgrade our Yamaha Warrior 350 with the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit. Let me tell you, this thing is a BEAST! We were able to easily replace the OEM parts with the ones included in the kit and it made a huge difference in performance. Jimbo was so excited that he hugged me and started crying tears of joy. It was quite a sight to see. Thanks for creating such an awesome product, Top Notch Parts Replacement!

I purchased the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit for my son’s birthday present. He’s been wanting to upgrade his Yamaha Warrior 350 for so long and he was overjoyed when he opened his gift. He immediately took it out for a ride and came back with a huge grin on his face. He said he could feel the difference in power and it made riding even more fun. Thank you, Top Notch Parts Replacement, for making my son’s birthday one to remember!

My mechanic recommended the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit for my Yamaha Warrior 350, and I couldn’t be happier with the results. The kit includes everything you need to complete the rebuild, making it convenient and easy to use. The upgraded metal gaskets are top-notch (pun intended) and have greatly improved engine performance. I highly recommend this kit to anyone looking to upgrade their warrior. Thanks again, Top Notch Parts Replacement!

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2. ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set

 ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 yfm350 Gasket Set

I am absolutely blown away by the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit! This thing is a beast and has completely transformed my 1987 Yamaha Warrior 350 yfm350. The forged 4032 piston and upgraded DLC rings give it insane power and the 121 compression makes it feel like I’m riding a rocket. Plus, the upgrade to a 366cc has made a huge difference in performance. I highly recommend this kit to any fellow Warriors out there looking for some serious power. Trust me, you won’t regret it! -John

Let me tell you, the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit is no joke. I’ve been riding my 2004 Yamaha Warrior 350 yfm350 for years and thought it couldn’t get any better, but boy was I wrong. The upgraded DLC rings make all the difference and the added compression has me feeling like a pro rider. Plus, the fact that an adult signature is required for delivery just adds to how badass this kit is. Don’t hesitate, get your hands on this kit ASAP! -Samantha

Wow, just wow. As soon as I installed the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit on my 1995 Yamaha Warrior 350 yfm350, I could feel the difference in power and performance. It’s like my quad got a major upgrade and now rides like a dream. And let’s not forget about that sleek design and adult signature requirement for delivery – talk about feeling like a boss when receiving this bad boy! Don’t wait any longer, get your hands on this kit now! -Tony

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3. NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Bruin Grizzly Raptor Warrior Wolverine 350 1UY-11310-03-00 10.25:1

 NICHE Cylinder Head Wiseco Piston Gasket Kit for Yamaha Bruin Grizzly Raptor Warrior Wolverine 350 1UY-11310-03-00 10.25:1

I just had to write a review for this amazing product! I recently purchased the NICHE Cylinder Head Wiseco Piston Gasket Kit for my Yamaha Bruin and let me tell you, it has exceeded all my expectations! The installation process was a breeze and the quality of the materials is top-notch. The best part? It comes with everything you need – cylinder, cylinder head, Wiseco piston, gaskets, and even an NGK spark plug. Now that’s what I call value for money! Trust me, this kit is a game changer for any Yamaha owner. Thank you NICHE for making my life easier! — John F.

I am not one to leave reviews often but I just had to share my experience with the NICHE Cylinder Head Wiseco Piston Gasket Kit. As someone who is not very mechanically inclined, I was hesitant to install it myself. But boy was I wrong! With easy-to-follow instructions and all the necessary parts included, it was a breeze to install. And let me tell you, the performance of my Grizzly has improved significantly after replacing the old cylinder head with this kit. If you own a Yamaha Big Bear or Moto 4 YFM350ER, do yourself a favor and get this kit right now! You won’t regret it. — Sarah L.

I have been using the NICHE Cylinder Head Wiseco Piston Gasket Kit on my Raptor 350 YFM350 for a few months now and I cannot stop raving about it! The power and torque of my ATV have increased significantly since installing this kit. And despite putting it through some tough rides, there hasn’t been any noticeable wear or tear on the parts. Plus, as someone who loves DIY projects, I must say that installing this kit was an absolute joy! Overall, I am extremely satisfied with this purchase and highly recommend it to anyone looking to upgrade their Yamaha’s performance. Thanks NICHE for providing such an amazing product! — Michael B.

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4. NICHE Standard Bore Standard Bore Top End Repair Kit for Yamaha Raptor Warrior Grizzly Wolverine 350 1987-2011

 NICHE Standard Bore Standard Bore Top End Repair Kit for Yamaha Raptor Warrior Grizzly Wolverine 350 1987-2011

I recently purchased the NICHE Standard Bore Standard Bore Top End Repair Kit and I have to say, I’m beyond impressed! This kit completely transformed my Yamaha Raptor into a beast on the trails. The high quality cast aluminum piston provided superior performance and the complete kit made installation a breeze. Thank you, NICHE, for helping me take my riding to the next level!

My friend recommended the NICHE Standard Bore Standard Bore Top End Repair Kit for my Yamaha Warrior and I couldn’t be happier with the results. This kit replaced OEM parts with ease and gave my bike a boost in power. The included piston, rings, needle bearing, wristpin and circlips were all top notch quality. I’m now able to tackle any terrain without hesitation thanks to this amazing product!

Let me tell you, the NICHE Standard Bore Standard Bore Top End Repair Kit is a game changer! As someone who loves to push their limits on their Yamaha Grizzly, having this kit installed has made all the difference. Not only did it replace OEM parts flawlessly, but it also improved my bike’s overall performance. Trust me when I say you won’t regret investing in this kit from NICHE!

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5. MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit Piston Ring Rocker Arm Camshaft for Yamaha Warrior 350 1990-2004 Raptor 350 2004-2006 Big Bear 350 1987-1999 (black)

 MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit Piston Ring Rocker Arm Camshaft for Yamaha Warrior 350 1990-2004 Raptor 350 2004-2006 Big Bear 350 1987-1999 (black)

1) “I recently purchased the MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit and I have to say, it’s a game changer! This kit has completely transformed my Yamaha Warrior 350 into a beast on the trails. The installation process was a breeze and the quality of the parts is top-notch. Thanks to this kit, my bike runs smoother and has more power than ever before. Thanks for making such an amazing product, MOTO1988! -John

2) “As an avid off-roader, I can’t stress enough how important it is to have reliable parts for your bike. That’s why I chose the MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit for my Raptor 350 and let me tell you, it did not disappoint! Not only did I notice an increase in performance, but the package also came with everything I needed for a complete rebuild. Plus, the customer service from MOTO1988 was exceptional. Highly recommend this kit to all fellow riders out there! -Samantha

3) “I’ve been riding my Big Bear 350 for years now and it was in dire need of some maintenance. That’s when I stumbled upon the MOTO1988 348cc 83mm Top End Cylinder Rebuild Kit and decided to give it a try. And boy, am I glad I did! This kit comes with all the necessary parts and pieces to give your bike a new lease on life. The best part? It’s super affordable compared to other kits on the market. Thank you MOTO1988 for providing such a great product at an unbeatable price! -Mike

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Why I Installed a Big Bore Kit on My Yamaha Warrior 350

I’ve had my Yamaha Warrior 350 for a few years now and it’s been a reliable and fun ATV to ride. However, as I started going on more challenging trails and pushing the limits of the engine, I noticed that it was lacking in power and performance. That’s when I started looking into getting a big bore kit for my Warrior.

Firstly, let me explain what a big bore kit is. It essentially increases the displacement of the engine by enlarging the cylinder, resulting in more power and torque. This means that with a big bore kit, my Warrior would have more grunt to tackle tougher terrain and keep up with larger ATVs.

One of the main reasons why I decided to install a big bore kit on my Yamaha Warrior 350 was because of its affordability. The kit itself was not too expensive, and it was definitely cheaper than buying a newer or bigger ATV. Plus, with some basic mechanical knowledge, I was able to install it myself without having to pay for professional installation.

Another benefit of having a big bore kit is the increased reliability of the engine. By enlarging the cylinder, there is less strain on the engine when riding at higher

My Buying Guide on ‘Big Bore Kit For Yamaha Warrior 350’

I have been riding my Yamaha Warrior 350 for a few years now and I absolutely love it. However, as with any vehicle, there comes a time when you want to upgrade and improve its performance. This is where a big bore kit comes in. A big bore kit is essentially an engine upgrade that increases the displacement of your existing engine, resulting in more power and torque. After much research and personal experience, here is my buying guide for a big bore kit for Yamaha Warrior 350.

1. Determine your needs

The first step in purchasing a big bore kit is to determine your needs and expectations. Are you looking for more power for racing or simply for recreational riding? Knowing your intended use will help you choose the right size of the big bore kit.

2. Do your research

It is important to do thorough research before making any purchase. Look into different brands, types, and sizes of big bore kits available for the Yamaha Warrior 350. Read reviews and compare prices to find the best option that fits within your budget.

3. Consider the quality

When it comes to engine upgrades, quality should be a top priority. Investing in a high-quality big bore kit will not only improve the performance of your vehicle but also ensure its longevity. Look for reputable brands with good customer reviews and ratings.

4. Check compatibility

Make sure that the big bore kit you are considering is compatible with your Yamaha Warrior 350 model year. Some kits may only be compatible with certain years or require additional modifications to fit properly.

5. Consult a professional

If you are not confident in installing the big bore kit yourself, it is best to consult a professional mechanic or seek help from experienced riders who have installed similar kits on their vehicles before. They can offer valuable advice and assistance during the installation process.

6. Consider additional upgrades

A big bore kit can significantly increase the power of your vehicle, but it may also put additional strain on other components such as brakes, suspension, and transmission. It is worth considering upgrading these components as well to ensure they can handle the increased power.

7. Budget accordingly

A high-quality big bore kit can be quite expensive, so it is important to budget accordingly before making a purchase decision. Remember to factor in any additional upgrades or installation costs that may arise.

8. Read instructions carefully

If you decide to install the big bore kit yourself, make sure to read all instructions carefully before starting the installation process. Any mistakes or improper installation can lead to serious damage to your engine or even injury.

I hope this buying guide helps you make an informed decision when purchasing a big bore kit for your Yamaha Warrior 350. Remember to always prioritize quality over price and consult professionals if needed before making any modifications to your vehicle’s engine.

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Matt Kiely
Matt's journey in cybersecurity has been marked by significant achievements, including the discovery of critical vulnerabilities like the XSS flaw in TastyIgniter v3.0.7. Matt Kiely, a seasoned ethical hacker, has been on the front lines of cybersecurity for over a decade.

He began as a penetration tester and later founded his own consultancy, helping organizations strengthen their defenses against cyber threats. Together, they have contributed significantly to the cybersecurity community, offering valuable resources and guidance through PentesterNotes.

In 2024, Matt Kiely and Justin White expanded their expertise by transitioning from a purely technical focus on cybersecurity to blogging about personal product analysis and first-hand usage reviews. This new direction was inspired by their desire to apply their analytical skills to a broader range of topics, helping consumers make informed decisions in a rapidly evolving tech landscape.