What are the best main jets for your engine?
We’ve created a simple guide to help you find the perfect main jets for smoother, stronger performance.
Main jets are key to your engine’s power. They control fuel flow, giving you better performance. With the right jets, your ride runs smoother and stronger.
Choosing the best main jets can feel tricky. But don’t worry, we’ve got you covered. Our guide makes it easy to find the perfect fit for your needs.
Whether you’re tuning a bike, ATV, or lawn engine, the right jets make a big difference. Let’s dive in and boost your ride today!
List of Top 10 Main Jets
| Image | Title | Best For | Price |
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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 YAMAKATO Carburetor Jet Kit is perfect for motorcycle enthusiasts and DIY mechanics who need a reliable and versatile set of jets. It’s ideal for tuning carburetors on bikes with PWK, CVK, or similar types, offering 11 main jets and 11 slow jets for precise adjustments. |
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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 40-piece carburetor jet kit is perfect for anyone tuning or repairing PWK Keihin, OKO, or CVK carburetors. It’s ideal for motorcycle, ATV, or scooter enthusiasts who need precise jet sizes for better performance. |
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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 owners of mini bikes, dirt bikes, pit bikes, ATVs, and go-karts with Mikuni VM22, VM24, or VM26 carburetors. It’s ideal for tuning and improving engine performance. |
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(4 Packs) 592792 594060 Carburetor Main Jet Replace 09P702 Lawn Garden Engines |
This kit is perfect for homeowners. It helps fix engines. These parts fit your mower. They work well. Keep your yard clean. Buy these tools now. |
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YGQ 24Pcs Carburetor Main Pilot Jet Kit for Nibbi PWK Keihin Honda CVK Yamaha OKO GY6 PWM PE FCR-MX PJ 99101-393 N424-21 |
This YGQ 24Pcs Carburetor Main Pilot Jet Kit is perfect for motorcycle and ATV enthusiasts who need precise tuning for their carburetors. It’s ideal for riders with Nibbi, Keihin, Honda, Yamaha, or GY6 setups, offering easy adjustments for better performance. |
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Strongthium Main Jet Kit for Mikuni VM TM Carburetors Large Hex VM4/042 240# ~ 340# |
This kit is perfect for riders who want smooth power and clean fuel flow from their Mikuni carb. It’s great for anyone tuning street, ATV, or off‑road machines for better performance. |
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XIKOBY 40PCS Carburetor Main Jet Slow Pilot Jet Kit Compatible with Keihin PE PWK CVK OKO KOSO Polini Carb Dirt Bike ATV Quad 4 Wheeler Go Kart, Include 30PCS Main Jet and 10PCS Pilot Jet Accessories |
This kit suits anyone who rides a small dirt bike or ATV and wants more power. It fits most 110‑300 cc engines and is easy to swap. |
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Hrwfnty 22Pcs Excellent Carburetor Jet Kit, Include 11 Pieces Carburetor Main Jet and 11 Pieces Slow Jet Compatible with Nibbi PWK Keihin Honda OKO CVK PE PWM Type. |
This Hrwfnty 22Pcs Carburetor Jet Kit is perfect for anyone who needs to tune or repair their carburetor. It’s great for DIY enthusiasts and mechanics working on motorcycles, ATVs, or other small engines. |
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Briggs and Stratton 592792 Jet-Main |
This jet-main is perfect for anyone who wants a simple, reliable fix for their Briggs & Stratton engine. It works well for people who like quick, easy parts that fit right and keep their machine running smooth. |
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Strongthium 30 Pcs Main Jet and Pilot Slow Jet Kit for Mikuni carburetor Large Round N100.604 & VM28/486 |
This kit is perfect for mechanics who tune their Mikuni carburetor. It lets them fine‑tune the air‑fuel mix for better performance. |
Detailed Reviews
This guide brings you the best main jets picked with care and real insight. Each choice is checked for quality, fit, and value so you can trust every word. The goal is to help you tune with ease and feel sure about what you buy. Read on and see how these picks can make your ride run smooth and strong.
1. 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 22‑piece jet kit gives your carb a clean, simple way to run better. You get main jets and slow jets that fit many PWK and CVK types. Each piece is easy to install and made to last.
You get 11 main jets and 11 slow jets for quick tuning. Each size is clear and simple to match.
| Pros | Cons |
|---|---|
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Perfect For:
This YAMAKATO Carburetor Jet Kit is perfect for motorcycle enthusiasts and DIY mechanics who need a reliable and versatile set of jets. It’s ideal for tuning carburetors on bikes with PWK, CVK, or similar types, offering 11 main jets and 11 slow jets for precise adjustments.
Ready to Purchase?
2. 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 40-piece carburetor jet kit is made of high-quality solid brass. It fits PWK Keihin CVK PE and other carburetor types.
The kit includes 30 main jets and 10 slow pilot jets. It replaces specific part numbers for easy installation.
Sizes vary for different needs. Check compatibility before buying. Not for CV, VE, or CVK above 3cm.
| Pros | Cons |
|---|---|
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Perfect For:
This 40-piece carburetor jet kit is perfect for anyone tuning or repairing PWK Keihin, OKO, or CVK carburetors. It’s ideal for motorcycle, ATV, or scooter enthusiasts who need precise jet sizes for better performance.
Ready to Purchase?
3. 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 jet kit gives your carb a clean boost. You get 16 sizes to match your ride. Each piece is simple, clear, and easy to use.
It fits Mikuni VM22, VM24, and VM26 carbs. It works with many 125cc–250cc engines.
Each jet has a marked size for fast picks. The thread is M5*0.75 for the right VM tube. The kit comes in a nylon bag for quick storage.
| Pros | Cons |
|---|---|
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Perfect For:
This YAMAKATO 16pcs Carburetor Jet Kit is perfect for owners of mini bikes, dirt bikes, pit bikes, ATVs, and go-karts with Mikuni VM22, VM24, or VM26 carburetors. It’s ideal for tuning and improving engine performance.
Ready to Purchase?
4. (4 Packs) 592792 594060 Carburetor Main Jet Replace 09P702 Lawn Garden Engines
4 Packs of carburetor main jets help keep your engine ready. They fit 09P702 Briggs & Stratton lawn and garden engines.
Each pack has 4 jets. You get a backup part. They are small and easy to store. They are made for a simple fit.
These jets use strong material. They install fast with no drill and no change. They help keep your carburetor working well.
| Pros | Cons |
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Perfect For:
This kit is perfect for homeowners. It helps fix engines. These parts fit your mower. They work well. Keep your yard clean. Buy these tools now.
Ready to Purchase?
5. YGQ 24Pcs Carburetor Main Pilot Jet Kit for Nibbi PWK Keihin Honda CVK Yamaha OKO GY6 PWM PE FCR-MX PJ 99101-393 N424-21
This jet kit fits many parts. It has 24 pieces inside. You can fix your bike fast.
The metal is very strong. These jets last a long time.
Each size is easy to see. Tune your engine now. This set works well.
| Pros | Cons |
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Perfect For:
This YGQ 24Pcs Carburetor Main Pilot Jet Kit is perfect for motorcycle and ATV enthusiasts who need precise tuning for their carburetors. It’s ideal for riders with Nibbi, Keihin, Honda, Yamaha, or GY6 setups, offering easy adjustments for better performance.
Ready to Purchase?
6. Strongthium Main Jet Kit for Mikuni VM TM Carburetors Large Hex VM4/042 240# ~ 340#
The Strongthium Main Jet Kit is a must-have for tuning Mikuni VM and TM carburetors. It works with many models, from street bikes to offroad ATVs.
This kit fits 2-stroke and 4-stroke engines. It includes 11 jet sizes, from 240 to 340. Check the product images to pick the right size.
Use it for Honda, Suzuki, Kawasaki, Yamaha, and more. It’s not for flat-slide TMX or TMR carbs. Always verify compatibility before buying.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for riders who want smooth power and clean fuel flow from their Mikuni carb. It’s great for anyone tuning street, ATV, or off‑road machines for better performance.
Ready to Purchase?
7. XIKOBY 40PCS Carburetor Main Jet Slow Pilot Jet Kit Compatible with Keihin PE PWK CVK OKO KOSO Polini Carb Dirt Bike ATV Quad 4 Wheeler Go Kart, Include 30PCS Main Jet and 10PCS Pilot Jet Accessories
This XIKOBY 40PCS Carburetor Jet Kit fits many carburetors like PE, PWK, Keihin, and more. It works great for dirt bikes, ATVs, go-karts, and motorcycles.
Made from strong brass, these jets resist heat and rust. They have a smooth finish and precise size thanks to CNC production. This kit helps your engine run better and gives more power.
| Pros | Cons |
|---|---|
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Perfect For:
This kit suits anyone who rides a small dirt bike or ATV and wants more power. It fits most 110‑300 cc engines and is easy to swap.
Ready to Purchase?
8. Hrwfnty 22Pcs Excellent Carburetor Jet Kit, Include 11 Pieces Carburetor Main Jet and 11 Pieces Slow Jet Compatible with Nibbi PWK Keihin Honda OKO CVK PE PWM Type.
The Hrwfnty 22Pcs Carburetor Jet Kit is a must-have for anyone tuning their carburetor. Made of premium brass, it’s durable and easy to install.
This kit includes 11 main jets and 11 slow jets, offering 22 pieces in total. It’s compatible with many carburetor types, but check sizes before buying.
| Pros | Cons |
|---|---|
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Perfect For:
This Hrwfnty 22Pcs Carburetor Jet Kit is perfect for anyone who needs to tune or repair their carburetor. It’s great for DIY enthusiasts and mechanics working on motorcycles, ATVs, or other small engines.
Ready to Purchase?
9. Briggs and Stratton 592792 Jet-Main
Briggs & Stratton makes this part. It is the Jet-Main tool. This item is high quality.
The model number is 592792. It comes from the United States.
The box is small. It fits well in hand. Use it for your engine.
| Pros | Cons |
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Perfect For:
This jet-main is perfect for anyone who wants a simple, reliable fix for their Briggs & Stratton engine. It works well for people who like quick, easy parts that fit right and keep their machine running smooth.
Ready to Purchase?
10. Strongthium 30 Pcs Main Jet and Pilot Slow Jet Kit for Mikuni carburetor Large Round N100.604 & VM28/486
The Strongthium 30 Pcs Main Jet and Pilot Slow Jet Kit is a must-have for Mikuni carburetor owners. It includes a wide range of jet sizes, making it easy to tune your carburetor for optimal performance. This kit is perfect for motorcycle enthusiasts.
With large round main jet sizes from 120 to 240 and pilot jet sizes from 17.5 to 40, this kit offers unmatched versatility. It’s compatible with various Mikuni carburetor models, including VM16, VM29/VM33, and HSR42/45/48. This compatibility ensures a perfect fit for your specific needs.
This jet kit is ideal for Suzuki, Kawasaki, and Yamaha models. It’s a reliable and affordable solution for improving your motorcycle’s performance. Get ready to experience a smoother ride.
| Pros | Cons |
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Perfect For:
This kit is perfect for mechanics who tune their Mikuni carburetor. It lets them fine‑tune the air‑fuel mix for better performance.
Ready to Purchase?
Buying Guide
Main jets help your engine run smooth. They feed the right fuel. They boost power fast.
A good buying guide should feel simple. It should help you pick with ease. It should make you feel sure about your choice.
- Fit: Make sure the jet fits your carb type. Check the model and size. A wrong fit can hurt power.
- Material: Pick solid brass jets. They last long. They resist heat and wear.
- Size Range: Choose a kit with many sizes. More sizes give you more tuning options. It helps you find the sweet spot.
- Markings: Clear size marks help you work fast. You can swap jets with no guesswork. It saves time.
- Engine Type: Match jets to your engine size. Small engines need small jets. Big engines need more fuel.
- Use Case: Pick jets for your bike, ATV, or yard engine. Each one needs the right flow. Good match means smooth power.
- Ease of Install: Look for jets that are easy to install. Simple threads help. No tools should be needed.
- Kit Count: More pieces mean more choices. You can tune for heat, load, or height. It gives you full control.
- Brand Match: Some jets fit Mikuni, some fit Keihin, and others fit mixed types. Check the brand list. It keeps things safe.
- Storage: A kit with a case or bag keeps jets clean. It stops loss. It makes tuning neat.