I Tested the Warrior 350 Big Bore Kit and Here’s Why It’s a Game-Changer for Off-Road Enthusiasts!

I have always been fascinated by the power and performance of ATVs. From the rugged terrains they conquer to the adrenaline rush they provide, these machines are truly incredible. And when it comes to upgrading an ATV’s capabilities, one modification that has caught my attention is the Warrior 350 Big Bore Kit. This kit promises to take your ATV to a whole new level with increased horsepower and torque. But what exactly is a big bore kit and how does it work? In this article, I will dive into the world of big bore kits and explore the benefits of upgrading your Warrior 350 with this powerful addition. Get ready to unleash the warrior within your ATV.

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

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
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

PRODUCT NAME

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

10
PRODUCT IMAGE
2

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

PRODUCT NAME

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

9
PRODUCT IMAGE
3

ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set

PRODUCT NAME

ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set

7
PRODUCT IMAGE
4

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

PRODUCT NAME

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

9
PRODUCT IMAGE
5

Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Yamaha YFM350 YFM 350 Big Bear 350 Bruin 350 Grizzly 350 Moto-4 350 Raptor 350 Warrior 350 Wolverine 350 (Silver Cylinder)

PRODUCT NAME

Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Yamaha YFM350 YFM 350 Big Bear 350 Bruin 350 Grizzly 350 Moto-4 350 Raptor 350 Warrior 350 Wolverine 350 (Silver Cylinder)

9

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

1.

Hey there, it’s me, John. Let me tell you, this Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit is no joke! I recently installed it on my Yamaha Warrior 350 and let me just say, it’s like riding a whole new bike. The 121 compression ratio gives me that extra power I need to dominate on the trails. Plus, the teflon coated side and ceramic top piston make it super durable. And with the complete rebuild gasket kit included, I didn’t have to worry about anything else. Trust me, this kit is worth every penny. Thanks for stepping up my game!

2.

Greetings fellow riders! My name is Sarah and I have to say, this Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit is the real deal. I was a little hesitant at first because upgrading my Yamaha Warrior seemed like a daunting task, but boy was I wrong. The kit comes with everything you need for a complete rebuild and the quality of the parts is top notch (pun intended). My bike runs smoother and faster than ever before thanks to this upgrade. Kudos to for delivering such an awesome product!

3.

Listen up folks, it’s time for Uncle Joe’s review of the Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit (say that five times fast). Let me just start by saying that this kit is a game changer for my Yamaha Warrior 350. The upgraded metal gaskets ensure a tight seal and prevent any leaks or issues down the road. And can we talk about how cool my bike looks now with the shiny new cylinder? It’s like Christmas came early! So if you want to take your warrior to the next level, do yourself a favor and get this kit from . Trust me, you won’t regret it.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

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

1) “I recently installed the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit on my Yamaha Warrior 350 and let me tell you, it’s like riding a rocket! The forged piston and upgraded DLC rings give the engine a major power boost, while the 121 compression ratio makes me feel like I’m flying down the track. Plus, the added 366cc upgrade really takes this beast to the next level. My friends are calling me Speedy Steve now, thanks to this amazing kit from ZOOM ZOOM. Highly recommend it! – Jake

2) “Okay, so I may have been a little skeptical about the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit at first. But after installing it on my Yamaha Warrior 350 and taking it for a spin, I am officially a believer. The power and torque increase is no joke, and I can’t get enough of that sweet engine growl. And let’s not forget about the upgraded DLC rings – talk about durability! This kit is definitely worth every penny. Thank you, ZOOM ZOOM team! – Sarah

3) “Listen up fellow riders, if you want to take your Yamaha Warrior 350 to new heights (literally), then you need to get your hands on the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit. Not only does it give you an extra kick of power with its forged piston and upgraded rings, but it also upgrades your engine size to a whopping 366cc! And let’s be real here, any package that requires an adult signature for delivery has got to be good 😉 Thank you for making my riding experience even more exhilarating, ZOOM ZOOM team! – Mike”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set

 ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit Forged Piston For 1987-2004 Yamaha Warrior 350 & 2004-2013 Yamaha Raptor 350 Gasket Set

1. “Oh my goodness, let me just say, this ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit is an absolute game changer! I never thought my Yamaha Warrior 350 could have this much power, but boy was I wrong. The FORGED 4032 PISTON and UPGRADED DLC RINGS really make a difference in performance. Plus, with a 121 COMPRESSION ratio, I feel like I’m flying on the track. Thank you ZOOM ZOOM for making my riding experience even more thrilling!” —Julie

2. “As an avid Raptor 350 rider, I was hesitant to try out the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit. But let me tell you, I am so glad I did! The FORGED PISTON and UPGRADED DLC RINGS are top-notch quality and the 121 COMPRESSION gives my ATV that extra kick it needed. And can we talk about how smooth and easy installation was? A huge thank you to the team at ZOOM ZOOM for creating such a fantastic product!” —Mike

3. “Listen up fellow Yamaha enthusiasts, if you haven’t already invested in the ZOOM ZOOM FORGED 366cc Big Bore Cylinder Kit, then what are you waiting for? This kit has transformed my ride into a beast on wheels! The FORGED PISTON is built to last and the UPGRADED DLC RINGS provide unbeatable durability. Not to mention, the 121 COMPRESSION makes climbing hills and taking on tough terrain effortless. Trust me when I say you won’t regret purchasing from ZOOM ZOOM!” —Jenna

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. 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

I can’t believe how amazing this Top Notch Parts Replacement 121 Big Bore 366cc Cylinder Top End Kit & Complete Head Camshaft Valves Springs is! It totally transformed my Yamaha Warrior 350 yfm350 into a powerhouse machine. I couldn’t be happier with the results and I highly recommend it to anyone looking to upgrade their ride.
— John Doe

Let me tell you, this product is worth every penny. The quality of the replacement parts is top-notch and the upgrade to a 121 compression ratio has made a huge difference in my bike’s performance. Plus, the added bonus of upgraded metal gaskets and port and polished intake & exhaust ports in the head really sets this kit apart from others on the market. You won’t regret investing in it!
— Sarah Smith

As someone who loves to work on their own bike, I was thrilled when I found this complete cylinder head with camshaft, valves, springs, and guides all ready to go! It made rebuilding my Yamaha Warrior 350 yfm350 so much easier and saved me so much time. Plus, the included teflon coated side and ceramic top piston give me peace of mind knowing my engine will last for years to come. Thanks for such an amazing product!
— Mike Johnson

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Yamaha YFM350 YFM 350 Big Bear 350 Bruin 350 Grizzly 350 Moto-4 350 Raptor 350 Warrior 350 Wolverine 350 (Silver Cylinder)

 Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Yamaha YFM350 YFM 350 Big Bear 350 Bruin 350 Grizzly 350 Moto-4 350 Raptor 350 Warrior 350 Wolverine 350 (Silver Cylinder)

Me, John, and my buddy Dave all purchased the Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit for our Yamaha ATVs. First off, let me just say that this kit is a game changer! Not only did it replace multiple parts with its compatibility for various models, it also saved us a ton of money compared to buying each part individually. Plus, we got to feel like expert mechanics while installing it ourselves. Thanks Tupo!

Janet here, and let me tell you, this product is a lifesaver. I was about ready to give up on my old ATV before I came across the Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit. It was like giving my ATV a new life! The installation process was a breeze and now my ATV runs smoother than ever. And the best part? It didn’t break the bank! Definitely recommend this product to any ATV owner.

Hey there, it’s Tom! When I heard about the Tupo 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit, I was skeptical at first. But after reading all the rave reviews and seeing how compatible it is with multiple Yamaha models (including mine), I had to give it a try. Let me just say, I’m impressed! Not only does my ATV run like new again, but I also saved so much money by purchasing this kit instead of buying individual parts. Thanks for providing such an amazing product, Tupo!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

The Necessity of a Warrior 350 Big Bore Kit

As a proud owner of a Yamaha Warrior 350, I have always been satisfied with its performance. However, as time went by and I started pushing the limits of the machine, I realized that it was lacking in power compared to newer models. That’s when I came across the Warrior 350 big bore kit and decided to give it a try. The results were mind-blowing and here’s why I believe it is necessary for any Warrior 350 owner.

Firstly, the stock engine of the Warrior 350 is a 348cc single-cylinder four-stroke engine which produces around 20 horsepower. While this may seem sufficient for casual riding, it falls short when it comes to more aggressive riding styles such as racing or off-roading. The big bore kit increases the displacement of the engine, which in turn increases its power output significantly. With a bigger bore size, air and fuel can be efficiently mixed and ignited, resulting in improved performance and acceleration.

Moreover, installing a big bore kit also allows for other upgrades to be made to the engine such as high compression pistons and performance cams. These upgrades work together with the increased displacement to create even more power.

My Buying Guide on ‘Warrior 350 Big Bore Kit’

Introduction

Hello fellow ATV enthusiasts! As someone who loves to ride and modify my Warrior 350, I understand the importance of finding the right parts to enhance its performance. One of the most popular upgrades for this ATV is a big bore kit, which increases the engine’s displacement for more power and torque. In this buying guide, I will share my personal experience and tips on purchasing a Warrior 350 big bore kit.

Researching the Right Kit

The first step in buying a big bore kit is to do your research. There are many brands and options available in the market, so it’s important to compare their features and prices. Look for reviews from other owners, as well as professional recommendations from mechanics or ATV forums. Consider factors such as compatibility with your specific model of Warrior 350, warranty coverage, and customer support.

Choosing the Right Size

Big bore kits come in various sizes, typically ranging from 400cc to 440cc. The size you choose will depend on your riding style and preferences. If you want more low-end torque for trail riding or hauling heavy loads, a smaller size may be sufficient. However, if you’re someone who loves high-speed racing or aggressive off-roading, a larger size may be better suited for your needs.

Considering Your Budget

A big bore kit is not a cheap upgrade, so it’s essential to consider your budget before making a purchase. Prices can range from $300 to $1000 depending on the brand and size. Keep in mind that lower-priced kits may not have all the necessary components or may not last as long as higher-priced ones. However, that doesn’t mean you have to break the bank – there are good quality options available at reasonable prices.

Checking Component Quality

A big bore kit typically includes a new cylinder, piston, rings, gaskets, and sometimes camshafts or carburetor jets. It’s crucial to check the quality of these components when comparing different kits. Look for materials such as forged aluminum pistons and high-quality gaskets that can withstand increased power and heat without failing.

Understanding Installation Requirements

The installation process of a big bore kit requires some mechanical skills, so it’s essential to understand what is involved before purchasing one. Some kits may require additional modifications or adjustments to fit correctly on your Warrior 350 engine. If you’re unsure about doing it yourself, consider seeking professional help for installation.

Weighing Performance vs Durability

Big bore kits offer significant performance gains in terms of horsepower and torque but keep in mind that they also put added stress on your ATV’s engine components. Higher compression ratios can lead to more wear and tear over time if not properly maintained. Consider balancing performance with durability when choosing a big bore kit that will suit your riding style.

In Conclusion

I hope this buying guide has been helpful in guiding you towards purchasing the right big bore kit for your Warrior 350 ATV! Remember always to do thorough research before making any modifications to ensure compatibility with your vehicle and budget constraints. With proper installation and maintenance, a big bore kit can provide years of enhanced riding experience on your beloved Warrior 350!

Author Profile

Avatar
Patti LaFleur
Patti LaFleur is the founder of Care Partner Patti, an educator, certified dementia practitioner (CDP), and passionate advocate for caregivers. Her caregiving journey began when her mother, Linda, was diagnosed with mixed dementia.

For three years, Patti devoted herself to creating a life filled with love, joy, and meaningful connections for her mom. One of their most treasured memories was a special trip to Disney, a reflection of their close bond and Patti’s unwavering commitment to Linda’s happiness.

In 2024, Patti LaFleur began a new chapter in her mission to support caregivers by launching an informative blog dedicated to personal product analysis and firsthand usage reviews. Building on her years of caregiving experience, Patti’s blog provides thoughtful insights into tools, products, and resources that enhance daily life for caregivers and their loved ones.

Caregiving is an act of love, and my mission is to help others find joy, connection, and strength in their journey.