Looking for the best main jet size kits to enhance your engine’s performance? We’ve curated a list of the top 10 kits that are easy to use, cater to both DIY enthusiasts and pro mechanics, and help boost power and fuel efficiency.
Main jet size kits are essential for tuning your engine. They help you get the best performance from your carburetor. With the right kit, you can boost power and improve fuel efficiency.
These kits come with various sizes and are easy to use. Whether you’re a DIY enthusiast or a pro mechanic, they make tuning simple and effective.
List of Top 10 Main Jet Size Kits
| Image | Title | Best For | Price |
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40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01 |
This 40PCS Carburetor Main Jet Slow Pilot Jet Kit is perfect for anyone tuning or repairing PWK Keihin OKO CVK carburetors. It’s ideal for motorcycle, ATV, or scooter enthusiasts who need precise jet sizes for better performance. |
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YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type |
This jet kit is for folks who fix bikes. It fits many carbs like PWK and CVK. You get 22 parts made of brass. They do not rust. The kit is easy to use. It helps your engine run well. Check your model first. It is good. |
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36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4”-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models |
This 36-181 Carburetor Metering Main Jet Assortment Kit is perfect for car enthusiasts and mechanics who want to tune their Holley carburetors for optimal engine performance. It’s ideal for those working on models like 2010, 2300, 4010, 4011, 4150, 4160, and 4500. |
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Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604 |
This Strongthium Carburetor Jet Kit is perfect for anyone who needs to tune their Mikuni carburetors. It’s great for 2-stroke and 4-stroke engines in street bikes, ATVs, and off-road vehicles. |
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Dirvcp Carburetor Jet Kit for Predator 212 & Honda GX160 GX200 – Performance Main Jet Kit with .036″ to .046″ Jets & E-Tube for Mini Bikes Go Karts (Type B) |
This jet kit is perfect for anyone who wants to boost their mini bike or go-kart’s power. It’s easy to use and works great for Predator 212 and Honda GX engines. |
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SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS) |
This kit is perfect for riders who want smooth power and better engine response. It’s great for anyone who loves to tune their bike and keep it running strong. |
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YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155 |
This YAMAKATO 16pcs Carburetor Jet Kit is perfect for anyone who owns a mini bike, dirt bike, pit bike, or ATV with a Mikuni VM22, VM24, or VM26 carburetor. It’s ideal for tuning and improving performance on 125cc to 250cc engines. |
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20 Pcs Carburetor Jets Kit for Keihin OKO KOSO PE PWK Carb Main Jet Kit and Slow Pilot Jet Kit |
This jet kit is perfect for mechanics and DIY riders who want to tune their engines. It helps you adjust fuel flow for better performance. It is a great tool for carburetor repair. Use it to fix your bike easily. |
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Gohantee 30 Pcs Main Jet and Pilot Slow Jet Kit Include 16Pcs Main Jets and 14Pcs Slow Pilot Jet, Compatible with Honda, Suzuki, Kawasaki, Yamaha, Husqvarna, Polaris Snowmobile, Mikuni Carburetors Etc |
This Gohantee 30 Pcs Main Jet and Pilot Slow Jet Kit is perfect for anyone who needs to tune their carburetor. It’s great for owners of Honda, Suzuki, Kawasaki, Yamaha, Husqvarna, or Polaris Snowmobile vehicles. |
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50pcs Main Jets Slow Jets Pilot Cleaner Tool Kit Fits for PWK CVK PE Keihin OKO Carb KOSO Polini KO SCL-2018090001-3 Jet Kits Fits Honda Yamaha Kawasaki Suzuki KTM BMW Ducati Triumph Aprilia Agusta |
This kit is perfect for motorcycle riders and DIY tuners who want smooth, strong engine performance. It’s great for anyone who needs easy jet changes to keep their carb running right. |
Detailed Reviews
Our guide helps you find the best main jet size. We test each kit for top power. These simple steps give you fast results. Learn how to fix your engine now.
1. 40PCS Carburetor Main Jet Slow Pilot Jet Kit for PWK Keihin OKO CVK Crab,Replace #SCL-2018090002-ZH-T-01/02 SCL-2018090001/03-ZH-T-01
40PCS jet kit for PWK, Keihin, CVK, and more. It has 30 main jets and 10 pilot jets. The brass build is strong and smooth.
It fits many carburetor types. The set gives you many size choices for easy tuning.
Use it for a clean fit and steady fuel flow. It is made for fast setup and simple use.
| Pros | Cons |
|---|---|
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Perfect For:
This 40PCS Carburetor Main Jet Slow Pilot Jet Kit is perfect for anyone tuning or repairing PWK Keihin OKO CVK carburetors. It’s ideal for motorcycle, ATV, or scooter enthusiasts who need precise jet sizes for better performance.
Ready to Purchase?
2. YAMAKATO Aftermarket 22pcs Carburetor Jet Kit w/11 Main Jets and 11 Slow Jet for Nibbi Honda PWK Keihin Yamaha OKO CVK PWM Type
The YAMAKATO Aftermarket 22pcs Carburetor Jet Kit is a must-have for tuning your carburetor. It includes 11 main jets and 11 slow jets, giving you plenty of options. This kit works with PWK, CVK, and other carburetor types.
Made of brass, these jets are rust-resistant and easy to install. Check your engine model before ordering to ensure a perfect fit.
The slow jets range from 32 to 58, and the main jets from 100 to 145. This kit offers precise tuning for your carburetor. Upgrade your performance with this reliable set.
| Pros | Cons |
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Perfect For:
This jet kit is for folks who fix bikes. It fits many carbs like PWK and CVK. You get 22 parts made of brass. They do not rust. The kit is easy to use. It helps your engine run well. Check your model first. It is good.
Ready to Purchase?
3. 36-181 Carburetor Metering Main Jet Assortment Kit #64-99 (2 Each of Sizes) Fit for Holley Carb 1/4”-32 Gas Main Carburetors 2010 2300 4010 4011 4150 4160 4500 Models
The 36-181 Carburetor Metering Main Jet Assortment Kit is a must-have for tuning your engine. It includes 72 jets, covering sizes 64 to 99. Each size comes in pairs, ensuring you have backups.
This kit fits Holley carburetors like the 2010, 2300, 4010, 4011, 4150, 4160, and 4500 models. The 1/4”-32 thread size ensures a perfect fit. It’s designed for precision tuning and optimal performance.
The jets come in a plastic case with numbered sections for easy storage. Made of high-quality brass, they are durable and wear-resistant. Always verify your model before buying or contact us for help.
| Pros | Cons |
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Perfect For:
This 36-181 Carburetor Metering Main Jet Assortment Kit is perfect for car enthusiasts and mechanics who want to tune their Holley carburetors for optimal engine performance. It’s ideal for those working on models like 2010, 2300, 4010, 4011, 4150, 4160, and 4500.
Ready to Purchase?
4. Strongthium 48 Pcs Carburetor Jet Kit for Mikuni Main & Pilot Slow Jet VM22/210 VM28/486 VM4/042 N100.604
The Strongthium 48 Pcs Carburetor Jet Kit is a complete aftermarket solution. It fits many Mikuni carburetors perfectly.
It includes large round and hex main jets. Sizes cover a wide range. Perfect for tuning your engine.
Works with many 2-stroke and 4-stroke engines. Compatible with top brands like Suzuki and Yamaha.
| Pros | Cons |
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Perfect For:
This Strongthium Carburetor Jet Kit is perfect for anyone who needs to tune their Mikuni carburetors. It’s great for 2-stroke and 4-stroke engines in street bikes, ATVs, and off-road vehicles.
Ready to Purchase?
5. Dirvcp Carburetor Jet Kit for Predator 212 & Honda GX160 GX200 – Performance Main Jet Kit with .036″ to .046″ Jets & E-Tube for Mini Bikes Go Karts (Type B)
The Dirvcp Carburetor Jet Kit helps your engine run strong. It gives more fuel for better power. It is made for Predator 212 and Honda GX engines.
It comes with 6 main jets for easy tuning. You can pick the best size for your setup.
This kit fits many mini bikes and go karts. It can help with smooth throttle and better ride feel.
| Pros | Cons |
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Perfect For:
This jet kit is perfect for anyone who wants to boost their mini bike or go-kart’s power. It’s easy to use and works great for Predator 212 and Honda GX engines.
Ready to Purchase?
6. SYOWADA 25 Pcs Carburetor Main Jet Kit Replacement for Mikuni VM22 VM24 VM26 Carburetor Used on 125cc 150cc 200cc 250cc Engine Motorcycle Dirt Pit Bike (25 PCS)
The SYOWADA 25 Pcs Carburetor Main Jet Kit is a perfect fit for Mikuni VM22, VM24, VM26, and VM30 carburetors. It works great on 125cc to 250cc engines in motorcycles and dirt bikes. This kit helps boost your vehicle’s performance.
It includes 10 bleed hole jets and 15 main jets in sizes from #88 to #150. The precise design makes installation quick and easy.
Upgrade your carburetor system with this must-have kit. It’s ideal for riders and DIY enthusiasts alike. Unlock your vehicle’s full potential today!
| Pros | Cons |
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Perfect For:
This kit is perfect for riders who want smooth power and better engine response. It’s great for anyone who loves to tune their bike and keep it running strong.
Ready to Purchase?
7. YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155
The YAMAKATO 16pcs Carburetor Jet Kit is perfect for tuning your mini bike, dirt bike, or ATV. It includes 16 main jets in sizes from 88 to 155. These jets fit Mikuni VM22, VM24, and VM26 carburetors.
Each jet has its size marked clearly, so you can find the right one fast. The thread size is M5*0.75, and it works with 3.9cm main jet tubes.
This kit comes in a nylon bag for easy storage. Always check the images and sizes before buying to ensure it fits your vehicle.
| Pros | Cons |
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Perfect For:
This YAMAKATO 16pcs Carburetor Jet Kit is perfect for anyone who owns a mini bike, dirt bike, pit bike, or ATV with a Mikuni VM22, VM24, or VM26 carburetor. It’s ideal for tuning and improving performance on 125cc to 250cc engines.
Ready to Purchase?
8. 20 Pcs Carburetor Jets Kit for Keihin OKO KOSO PE PWK Carb Main Jet Kit and Slow Pilot Jet Kit
This 20-piece kit includes ten main jets and ten slow pilot jets. Each part is designed to fit Keihin, OKO, KOSO, PE, PWK, and FCR carburetors. The kit gives you a wide range of sizes for precise tuning.
The main jets range from 100 to 140, while the slow pilot jets range from 32 to 55. Each jet has specific dimensions for a perfect fit and smooth performance. These jets help your engine run better and more efficiently.
We provide a 100% satisfaction warranty with every purchase. If you need help, just ask—we’re here to support you.
| Pros | Cons |
|---|---|
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Perfect For:
This jet kit is perfect for mechanics and DIY riders who want to tune their engines. It helps you adjust fuel flow for better performance. It is a great tool for carburetor repair. Use it to fix your bike easily.
Ready to Purchase?
9. Gohantee 30 Pcs Main Jet and Pilot Slow Jet Kit Include 16Pcs Main Jets and 14Pcs Slow Pilot Jet, Compatible with Honda, Suzuki, Kawasaki, Yamaha, Husqvarna, Polaris Snowmobile, Mikuni Carburetors Etc
The Gohantee 30 Pcs Main Jet and Pilot Slow Jet Kit is a must-have for carburetor tuning. It includes 16 main jets and 14 slow pilot jets, covering a wide range of sizes. This kit is perfect for DIY enthusiasts and professional mechanics.
It works with many carburetors, including Mikuni models. The kit is compatible with Honda, Suzuki, Kawasaki, Yamaha, Husqvarna, and Polaris Snowmobile. Use it for 2-stroke and 4-stroke engines.
Made from high-quality solid brass, these jets are durable and corrosion-resistant. They ensure smooth performance and precise tuning. Get this kit for reliable engine optimization.
| Pros | Cons |
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Perfect For:
This Gohantee 30 Pcs Main Jet and Pilot Slow Jet Kit is perfect for anyone who needs to tune their carburetor. It’s great for owners of Honda, Suzuki, Kawasaki, Yamaha, Husqvarna, or Polaris Snowmobile vehicles.
Ready to Purchase?
10. 50pcs Main Jets Slow Jets Pilot Cleaner Tool Kit Fits for PWK CVK PE Keihin OKO Carb KOSO Polini KO SCL-2018090001-3 Jet Kits Fits Honda Yamaha Kawasaki Suzuki KTM BMW Ducati Triumph Aprilia Agusta
This 50pcs Main Jets Slow Jets Pilot Cleaner Tool Kit fits many carburetors like PWK, CVK, PE, and more. It works with top brands like Honda, Yamaha, Kawasaki, Suzuki, KTM, BMW, Ducati, Triumph, Aprilia, and Agusta.
The kit includes many sizes for slow pilot jets and main jets. All parts are made of smooth, clean brass that is very easy to install.
It fits many bike models. The parts are strong. You can trust this kit.
| Pros | Cons |
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Perfect For:
This kit is perfect for motorcycle riders and DIY tuners who want smooth, strong engine performance. It’s great for anyone who needs easy jet changes to keep their carb running right.
Ready to Purchase?
Buying Guide
Main jet size kits help you tune your engine with care. They give you more control. They can help your engine run better.
Many users like the easy fit and clear size choices. A good kit can make tuning feel smooth. It can also save time and reduce guesswork.
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Fit and compatibility: Check the carburetor type first. Make sure the kit matches your engine. A good fit makes setup fast and simple.
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Jet size range: Look for a kit with many sizes. More sizes give you more tuning choices. This helps you find the best fuel flow.
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Main jets and pilot jets: Some kits include both. That gives you more control at low and high speed. It can help the engine run smooth in more cases.
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Material quality: Brass is a strong choice. It resists wear and stays smooth. Good material can help the jets last longer.
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Clear size marks: Pick a kit with marked sizes. This makes each jet easy to find. It also helps avoid mix-ups.
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Thread and shape: Check the thread size and jet shape. Small size changes can affect fit. The right shape helps the jet seat well.
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Engine type: Match the kit to your engine use. Some kits suit mini bikes. Some suit dirt bikes, go karts, or street bikes. The right match gives better results.
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Ease of use: A good kit should be simple to install. Easy use saves time. It also helps new users tune with more trust.
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Storage case: A case keeps jets neat. It helps stop loss and damage. It also makes size checks fast.
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Tuning needs: Think about how much change you want. Some riders need small steps. Others need a wide range for more fine tuning.
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Brand support: Good support can help if fit is not clear. It is useful when you need help with size choice. This can make buying less risky.
A good main jet size kit gives you choice, control, and ease. It helps you tune with less stress. It can also help your engine feel more smooth and strong.