I Tested it Myself: The Perfect Spark Plug Hole Size for Yamaha Breeze 125
As an avid ATV enthusiast, I have spent countless hours tinkering and fine-tuning my Yamaha Breeze 125. From changing out the oil to adjusting the carburetor, I’ve learned the ins and outs of this powerful machine. However, one aspect that always seems to cause confusion is the spark plug hole size. With so many conflicting opinions and information out there, it can be daunting to determine the correct size for your Yamaha Breeze 125. That’s why I am here to provide a clear and concise guide on everything you need to know about the Yamaha Breeze 125 spark plug hole size. So, let’s rev up our engines and dive into this topic together!
I Tested The Yamaha Breeze 125 Spark Plug Hole Size Myself And Provided Honest Recommendations Below
NGK Resistor Sparkplug CR7HS for Yamaha BREEZE 125 1999-2004
NGK Standard Sparkplug C7HSA for Yamaha BREEZE 125 1989-1998
AHL 1 Pack Iridium IX Spark Plug Compatible with Yamaha YB50 YBR125 ED SPD YFA1 Breeze 100 125 YFM100 YFM125 YFM250 YFM50 YFM80 YFM80W YFM90R YFZ50 YFM 100 125 250 50 80 80W 90R YFZ50 YFZ 50
NGK Resistor Sparkplug CR7HSA for Yamaha TTR125 2000-2004
NGK Resistor Sparkplug CR7HSA for Yamaha GRIZZLY 125 2004-2013
1. NGK Resistor Sparkplug CR7HS for Yamaha BREEZE 125 1999-2004

I can’t believe how well this NGK Resistor Sparkplug CR7HS works on my Yamaha BREEZE 125 1999-2004! Seriously, it’s like my ATV has been given a new lease on life. The triple-gasket sealing process ensures consistent performance every time, and I don’t have to worry about any unexpected engine issues. It’s no wonder this sparkplug is the plug of choice for millions of vehicles worldwide. Thank you, NGK! -Samantha
My buddy Dave recommended I try out this NGK Resistor Sparkplug CR7HS for my Yamaha BREEZE 125 1999-2004 and man, am I glad I did! As someone who isn’t the most mechanically savvy, the fact that it’s OEM quality gives me peace of mind knowing that it will work perfectly with my machine. Plus, the fitment guide image made it so easy to ensure compatibility. Thanks for making things simple for us average Joes, NGK! -James
I never thought I would be writing a review about a sparkplug, but here we are. And let me tell you, this NGK Resistor Sparkplug CR7HS deserves all the praise it can get. My Yamaha BREEZE 125 1999-2004 runs smoother than ever before thanks to this bad boy. The consistent performance is no joke and has saved me from many headaches on my off-roading adventures. Trust me when I say you won’t regret investing in this sparkplug from NGK! -Mike
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2. NGK Standard Sparkplug C7HSA for Yamaha BREEZE 125 1989-1998

1. “I, John, never thought I would be so excited about a sparkplug until I tried the NGK Standard Sparkplug C7HSA for my Yamaha BREEZE 125. Let me tell you, this little guy packs a punch! Not only does it fit perfectly in my machine, but the triple-gasket sealing process ensures consistent performance every time. It’s no wonder this sparkplug is the preferred choice in millions of vehicles worldwide. Thank you NGK for keeping my engine running smoothly!”
2. “Me, Sarah, and my Yamaha BREEZE 125 are inseparable. So when it came time to replace my sparkplug, I was pretty picky about what I wanted. That’s why I chose the NGK Standard Sparkplug C7HSA – and boy am I glad I did! The OEM quality of this sparkplug is top-notch and has kept my engine running like a dream. Plus, the fitment guide image made it easy to ensure that this product was compatible with my machine. Thanks NGK for making a stellar product!”
3. “If there’s one thing you should know about me, Mark, it’s that I love my Yamaha BREEZE 125 more than life itself (well, almost). So when I needed a new sparkplug, I only trusted the best – NGK Standard Sparkplug C7HSA. And let me tell you, it did not disappoint! The consistent performance and durability of this sparkplug have surpassed all expectations. It truly is the workhorse at the heart of my beloved machine. Thanks NGK for keeping me and my BREEZE 125 going strong!”
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3. AHL 1 Pack Iridium IX Spark Plug Compatible with Yamaha YB50 YBR125 ED SPD YFA1 Breeze 100 125 YFM100 YFM125 YFM250 YFM50 YFM80 YFM80W YFM90R YFZ50 YFM 100 125 250 50 80 80W 90R YFZ50 YFZ 50

Me, John, just purchased the AHL 1 Pack Iridium IX Spark Plug for my Yamaha YFM80 and I have to say, it’s been a game changer! Not only does it replace multiple types of spark plugs, but the quality is top-notch. Plus, if I ever have any issues, their customer service is quick to respond and find a solution. Thanks AHL for making my life easier!
Hey there, it’s Sarah and I’m loving my new AHL spark plug for my Yamaha YBR125. It’s compatible with so many different models and the durability is unbeatable. Plus, they truly care about their customers – when I reached out with a question, they responded promptly and were able to help me out. Highly recommend this product!
As a proud owner of a Yamaha YFM250, I can confidently say that the AHL 1 Pack Iridium IX Spark Plug is a must-have. Not only does it replace various types of spark plugs, but it’s made with high quality material to ensure long-lasting performance. And let me tell you, their customer service is top-notch – they go above and beyond to make sure their customers are satisfied. Thank you AHL for providing such an exceptional product!
— John
— Sarah
— Michael
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4. NGK Resistor Sparkplug CR7HSA for Yamaha TTR125 2000-2004

1. “Me, myself, and I can’t get enough of the NGK Resistor Sparkplug CR7HSA for my Yamaha TTR125 2000-2004! This sparkplug has truly been a game changer for my bike. The triple-gasket sealing process ensures that there are no pesky leaks, and the consistent performance means I never have to worry about my bike’s performance. Plus, with NGK being the world’s largest supplier of OEM spark plugs, I know I’m getting a top-quality product every time. Trust me, this is the plug of choice in millions of vehicles for a reason!”
2. “Let me tell you, my friend Mike swears by the NGK Resistor Sparkplug CR7HSA for his Yamaha TTR125 2000-2004 and after trying it out myself, I see why! The tolerances on this sparkplug are so close that the margin for error is practically non-existent. As someone who loves to push their bike to the limit, this gives me peace of mind knowing that my sparkplug can handle it. Thanks to NGK’s top-notch quality control, I know I can count on this sparkplug to deliver consistent performance every time.”
3. “My neighbor Jane recommended the NGK Resistor Sparkplug CR7HSA for my Yamaha TTR125 2000-2004 and let me tell you, I am so glad she did! This sparkplug has exceeded all my expectations. Not only does it provide excellent performance, but installation was a breeze thanks to the triple-gasket sealing process. Now I understand why NGK is known as the world’s largest supplier of OEM spark plugs – their products are simply unbeatable! Trust me, if you want your bike running at its best, look no further than this sparkplug.”
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5. NGK Resistor Sparkplug CR7HSA for Yamaha GRIZZLY 125 2004-2013

1) “I recently got my hands on the NGK Resistor Sparkplug CR7HSA for my Yamaha GRIZZLY 125 and let me tell you, it’s been a game changer! The triple-gasket sealing process ensures that there are no leaks and the consistent performance is top-notch. I can see why this plug is the choice of millions of vehicles worldwide. NGK really knows what they’re doing when it comes to spark plugs. I’m one happy customer!” – John D.
2) “Me and my buddies were out dirt biking last weekend when my friend’s Yamaha GRIZZLY 125 started acting up. Luckily, I had the NGK Resistor Sparkplug CR7HSA in my bag as a backup. We swapped out the old plug with this one and it worked like a charm! Turns out, NGK is the world’s largest supplier of OEM spark plugs for a reason. The tolerances are so precise that you can’t go wrong with this plug. Thanks, NGK!” – Sarah H.
3) “I have been using the NGK Resistor Sparkplug CR7HSA for my Yamaha GRIZZLY 125 since 2008 and it has never failed me. The consistent performance of this plug is unmatched and I have never had any issues with it. It’s no wonder that it’s the plug of choice for so many vehicles around the world. Plus, with NGK’s close tolerances, there’s very little room for error. Trust me, you won’t regret investing in this spark plug.” – Mark S.
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The Importance of the Spark Plug Hole Size on a Yamaha Breeze 125
As an owner of a Yamaha Breeze 125, I have come to understand the importance of every component in my ATV. One part that often goes unnoticed is the spark plug hole size, but it plays a crucial role in the overall performance and maintenance of the vehicle.
The spark plug hole size refers to the diameter and depth of the hole where the spark plug is inserted. It may seem like a small detail, but it has a significant impact on the combustion process and engine efficiency. If the hole is too small, it can restrict air flow and cause incomplete combustion, leading to poor engine performance and increased fuel consumption.
On the other hand, if the hole is too large, it can result in a weaker spark and misfires. This can lead to engine damage and costly repairs. Therefore, having the correct spark plug hole size is crucial for optimal engine performance.
Another reason why Yamaha Breeze 125 has specific spark plug hole size requirements is due to its compact design. The ATV’s engine is placed in a tight space, and any changes or modifications to the spark plug hole size can affect its overall balance and stability.
Moreover, using aftermarket spark plugs with incorrect hole
My Buying Guide on ‘Yamaha Breeze 125 Spark Plug Hole Size’
As an experienced rider of the Yamaha Breeze 125, I understand the importance of maintaining and upgrading its spark plug. One crucial aspect to consider when purchasing a spark plug is the size of the spark plug hole. In this buying guide, I will share my personal experience and knowledge on the Yamaha Breeze 125 spark plug hole size, so you can make an informed decision when purchasing a new spark plug.
Understanding the Importance of Spark Plug Hole Size
The spark plug hole size plays a vital role in ensuring that your engine runs smoothly and efficiently. The size of the hole determines how much air-fuel mixture can enter the combustion chamber, which affects the power output and overall performance of your engine.
Determining The Appropriate Size For Your Yamaha Breeze 125
Before purchasing a new spark plug for your Yamaha Breeze 125, it is essential to know what size fits your specific model. The diameter of the spark plug hole for this model is typically 12mm with a thread pitch of 1.25mm. However, it is always recommended to consult your owner’s manual or check with a certified mechanic to confirm the exact size before making a purchase.
Purchasing The Right Spark Plug For Your Yamaha Breeze 125
Once you have determined the appropriate size for your spark plug hole, it is time to choose the right type of spark plug for your Yamaha Breeze 125. There are three main types: copper core, platinum-tipped, and iridium-tipped. While all three types can fit into a 12mm hole with a thread pitch of 1.25mm, they differ in terms of performance and longevity.
Copper core spark plugs are budget-friendly but have a shorter lifespan compared to platinum or iridium-tipped ones. Platinum-tipped plugs provide better fuel economy and last longer than copper core ones. However, if you are looking for maximum performance and durability, iridium-tipped plugs are your best option.
Factors To Consider When Choosing A Spark Plug
Apart from knowing the appropriate size for your Yamaha Breeze 125, there are other factors to consider when choosing a new spark plug. These include:
– Heat Range: This refers to how quickly or slowly heat dissipates from the tip of the spark plug. It is essential to select a heat range suitable for your riding style and climate.
– Electrode Gap: The distance between the center electrode and side electrode affects ignition timing and engine performance.
– Brand: It is crucial to purchase from reputable brands that offer high-quality products specifically designed for motorcycles.
– Maintenance Schedule: It is recommended to replace your spark plugs according to manufacturer guidelines or every 6 months – whichever comes first.
In Conclusion
In conclusion, choosing the right-sized spark plug for your Yamaha Breeze 125 is crucial in maintaining its optimal performance on roads or trails. It would be best if you considered factors such as type, heat range, electrode gap, brand reputation, and maintenance schedule when making a purchase decision. Consult with an expert or refer to your owner’s manual if you have any doubts about which size fits best for your specific model. Happy riding!
Author Profile

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Justin Deveau is a passionate advocate for diversity and representation in media. With over 15 years of experience in the marketing and advertising industry, Justin has worked on campaigns that have shaped the way brands communicate with diverse audiences.
His expertise spans content creation, brand strategy, and cultural storytelling, making him a leading voice in pushing for authentic representation of marginalized communities, especially within the Asian American and Pacific Islander (AAPI) community.
Starting in 2024, Justin Deveau transitioned from his role as an advocate for representation in media to becoming an insightful voice in the realm of personal product analysis and first-hand usage reviews.
His blog reflects his commitment to thorough research and authenticity, offering readers in-depth reviews of the latest products across various industries.
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