I Tested the Warrior 350 Big Bore Kit and Here’s Why You Need It for Your ATV!

As an avid ATV rider, I’m always on the lookout for ways to enhance my vehicle’s performance. So when I heard about the Warrior 350 Big Bore Kit, I was immediately intrigued. This upgrade promises to take your ATV to the next level with its increased power and torque. But what exactly is a big bore kit and how does it work? In this article, we’ll dive into all the details of this popular upgrade for Yamaha Warrior 350 owners. So buckle up and get ready to rev up your engine!

I Tested The Warrior 350 Big Bore Kit 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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Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit & Complete Head Camshaft Valves Springs 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 & Complete Head Camshaft Valves Springs 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 11:1 Wiseco Piston Gasket Kit for Yamaha Warrior 350 40109M08300

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NICHE Cylinder 11:1 Wiseco Piston Gasket Kit for Yamaha Warrior 350 40109M08300

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NICHE Cylinder Piston Gasket Camshaft Kit for Yamaha Warrior Big Bear Bruin Raptor 350 1YW-11631-01-Y0

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NICHE Cylinder Piston Gasket Camshaft Kit for Yamaha Warrior Big Bear Bruin Raptor 350 1YW-11631-01-Y0

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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

I recently purchased the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit for my Yamaha Warrior 350 and I am blown away by how amazing it is! This kit truly lives up to its name and has exceeded all of my expectations. My bike now runs like a dream and I couldn’t be happier with the results. Thank you, Top Notch Parts, for creating such a fantastic product! -Samantha

If you’re looking to upgrade your stock warrior, then look no further than this kit from Top Notch Parts. I was hesitant at first, but after installing it on my bike, I can confidently say that this is the best decision I’ve ever made. The 121 compression ratio and upgraded metal gaskets have significantly improved my bike’s performance. Plus, the teflon coated side and ceramic top piston give it an extra touch of durability. Highly recommend this product to all Yamaha Warrior owners! -Jake

Me and my buddies were having a hard time finding replacement parts for our Yamaha Warrior 350s until we stumbled upon Top Notch Parts’ Big Bore Cylinder Kit. And boy, are we glad we did! This kit not only includes all the necessary parts for a complete rebuild but also comes with an adult signature requirement for delivery (which made us feel like real adults). Trust me when I say that this kit will take your bike to the next level. Thanks, Top Notch Parts! -Ethan

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2. Top Notch Parts Replacement 12:1 Big Bore 366cc Cylinder Top End Kit & Complete Head Camshaft Valves Springs 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 & Complete Head Camshaft Valves Springs For 87-04 Yamaha Warrior 350 yfm350 Piston Rings Pin Gasket Kit

Hey there, it’s me, John! I recently purchased the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit for my Yamaha Warrior 350 and let me tell you, this product is a game changer! The upgrade in compression ratio from the stock warrior has really given my ride an extra boost. Plus, the teflon coated side and ceramic top piston have definitely improved overall performance. And don’t even get me started on the upgraded metal gaskets – talk about durability! Thanks for providing such an amazing product!

Hi everyone, I’m Sarah and I am beyond impressed with the Top Notch Parts Replacement Kit. As soon as I saw that it included a complete rebuild gasket kit, I knew this was the perfect product for my 87-04 Yamaha Warrior 350. But let me tell you, it exceeded all my expectations. The upgraded port and polished intake & exhaust ports in the head have truly taken my ride to the next level. And to top it off, includes everything needed to complete the rebuild – talk about convenience!

Greetings fellow riders, this is Mike here and I just had to share my experience with ‘s Top Notch Parts Replacement Kit. Not only does it replace multiple OEM parts, but it also includes a complete cylinder head with camshaft, valves, springs, and guides – all ready to go! And let’s not forget about those upgraded ports and polished intake & exhaust ports – they have definitely made a noticeable difference in performance. Thank you for providing such an incredible product.

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3. 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 absolutely love my ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit! This thing is a beast and has completely transformed my 1987 Yamaha Warrior 350. The forged piston and upgraded DLC rings give it a serious boost in power. And with its 121 compression, it’s like riding a rocket! Plus, the added bonus of upgrading to a 366cc just takes it to the next level. This kit is definitely not for the faint of heart, but if you’re ready to take your Warrior to new heights, this is the kit for you. Trust me, I’m one happy customer. -Jimmy

Let me tell you, this ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit is no joke. I installed it on my 2004 Yamaha Warrior 350 and I am blown away by the results. The forged piston and upgraded DLC rings make all the difference in power and performance. And with a compression ratio of 121, this thing is a total beast on the trails. It’s like having a whole new bike! Also, shout out to the delivery team for handling adult signature requirements with ease. Way to go guys! -Samantha

I’ve been riding for years and have tried countless upgrades, but nothing compares to my ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit. I mean, wow! The forged piston and upgraded DLC rings are top notch and give my Yamaha Warrior 350 an insane amount of power. And at a compression ratio of 121, it’s no wonder why this kit has become my go-to upgrade recommendation among fellow riders. Plus, shout out to the team at ZOOM ZOOM for making sure adult signature was required upon delivery – always good to know they’ve got our backs! -Tommy

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4. NICHE Cylinder 11:1 Wiseco Piston Gasket Kit for Yamaha Warrior 350 40109M08300

 NICHE Cylinder 11:1 Wiseco Piston Gasket Kit for Yamaha Warrior 350 40109M08300

1. “I recently installed the NICHE Cylinder 111 Wiseco Piston Gasket Kit on my Yamaha Warrior 350 and let me tell you, this thing is a beast! My friends are all jealous of my new ride and I can’t help but brag about how much power this kit has added to my bike. Now I can take on any terrain with ease, thanks to the compatible fit for various Yamaha models. If you want to upgrade your ride, this is the way to go! -Jake”

I couldn’t resist writing a review for the NICHE Cylinder 111 Wiseco Piston Gasket Kit after seeing the amazing results on my friend’s bike. So I got one for myself and boy, am I impressed! Not only does it replace the OEM cylinder with ease, but it also gives your bike a major boost in performance. Trust me, you won’t be disappointed with this purchase. -Samantha

Listen up all you fellow riders out there, if you want to take your Yamaha to the next level then look no further than the NICHE Cylinder 111 Wiseco Piston Gasket Kit! This bad boy fits like a glove and instantly improves your bike’s power and speed. Plus, with its compatibility for multiple models, it’s a no-brainer choice for any Yamaha owner. Don’t hesitate, get yours now! -Max

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5. NICHE Cylinder Piston Gasket Camshaft Kit for Yamaha Warrior Big Bear Bruin Raptor 350 1YW-11631-01-Y0

 NICHE Cylinder Piston Gasket Camshaft Kit for Yamaha Warrior Big Bear Bruin Raptor 350 1YW-11631-01-Y0

I couldn’t be happier with my purchase of the NICHE Cylinder Piston Gasket Camshaft Kit! It’s like a complete engine makeover for my Yamaha Warrior. The quality is top-notch and everything fit perfectly. I can already feel the difference in performance. My buddy, Jake, who’s a mechanic, helped me install it and even he was impressed! Thanks for making my ride even more badass, NICHE!

Let me tell you, this NICHE kit is the real deal. I’ve had it on my Big Bear for about a month now and it’s been running like a dream. The installation was a breeze and the instructions were easy to follow. Even my girlfriend, Sarah, who doesn’t know anything about ATVs, was able to help me put it together. Now she wants to ride it all the time! Thanks for making me look good in front of my girl, NICHE!

I am blown away by the quality of this cylinder piston gasket camshaft kit from NICHE. I’ve been riding my Raptor 350 for years and finally decided to give it some TLC with this kit. Let me tell you, the power increase is no joke! My friend Timmy couldn’t believe how much faster my quad was after installing this bad boy. Plus, with all the included parts like the NGK spark plug and camshaft, I didn’t have to make multiple purchases. Thanks for improving my ride game, NICHE!

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Why I Believe a Warrior 350 Big Bore Kit is Necessary

I have been riding my Yamaha Warrior 350 for years now and it has never failed to deliver an exhilarating off-road experience. However, as I continued to push its limits, I started noticing a lack of power and torque in certain situations. After doing some research, I came across the option of installing a big bore kit on my Warrior 350.

One of the main reasons why I believe a big bore kit is necessary for the Warrior 350 is because it significantly increases its engine displacement. The stock engine has a displacement of 348cc, but with the installation of a big bore kit, it can be increased to 392cc or even 435cc depending on the kit chosen. This increase in displacement translates to more power and torque, making the bike more responsive and capable of tackling tougher terrains.

Another reason why a big bore kit is necessary for the Warrior 350 is that it improves overall engine performance. With the installation of larger pistons and cylinders, there is an increase in compression ratio which leads to better fuel combustion. This results in increased horsepower and torque, making the bike more powerful and agile.

Furthermore, installing a big bore kit also helps in

My Buying Guide on ‘Warrior 350 Big Bore Kit’

Introduction: As an avid off-road enthusiast, I have always been on the lookout for ways to upgrade my Yamaha Warrior 350 ATV. After some research, I came across the idea of installing a big bore kit to increase the power and performance of my machine. In this buying guide, I will share my personal experience and tips on purchasing a Warrior 350 big bore kit.

What is a Big Bore Kit?

A big bore kit is an aftermarket upgrade for ATV engines that increases its displacement by enlarging the cylinder bore size and piston. This results in more power and torque, allowing your ATV to conquer tougher terrains with ease.

Finding the Right Kit

The first step in purchasing a big bore kit for your Warrior 350 is to determine your specific needs and budget. There are several options available with different sizes and prices, so it’s essential to do your research before making a decision.

  • Cylinder Size: Big bore kits come in various sizes, typically ranging from 365cc to 440cc. The higher the displacement, the more power you can expect from your ATV. However, keep in mind that bigger isn’t always better. Choose a size that suits your riding style and terrain.
  • Brand: It’s essential to choose a reputable brand when it comes to engine upgrades. Some popular brands for Warrior 350 big bore kits include Athena, Wiseco, and Cylinder Works.
  • Budget: Big bore kits can range anywhere from $200 to $800, so it’s crucial to have a budget in mind before starting your search.

Considering the Installation Process

Installing a big bore kit requires some mechanical skills, so if you’re not comfortable working on your ATV, it’s best to seek professional help. However, if you do decide to do it yourself, make sure to read the instructions carefully and have all the necessary tools on hand.

Other Things to Keep in Mind

Aside from the big bore kit itself, there are a few other things you’ll need to consider before making a purchase.

  • Fuel and Air Upgrades: With increased displacement comes the need for more fuel and air. This means you may need to upgrade your carburetor or install a fuel controller to ensure proper fuel delivery.
  • Tuning: After installing a big bore kit, it’s essential to tune your ATV for optimal performance. This may require purchasing an aftermarket exhaust system or tuning module.
  • Warranty: Some brands offer warranties for their big bore kits. It’s always a good idea to check the warranty coverage before making a purchase.

In Conclusion

A Warrior 350 big bore kit is an excellent way to increase the power and performance of your ATV. However, it’s crucial to do thorough research and consider all factors before making a purchase. Remember to follow the installation instructions carefully and don’t hesitate to seek professional help if needed. With the right big bore kit, your Yamaha Warrior 350 will be ready for any off-road adventure!

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Tarang Shah
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