Looking for the best Yamaha jet mains to enhance your bike’s performance? We’ve got you covered with a simple, clear guide to the top 10 options, making it easy to find the perfect fit for your Yamaha.
Yamaha jet mains are key parts for your bike’s engine. They help your bike run smooth and perform better.
Choosing the right jet main can boost power and save fuel. This guide will show you the best options for your Yamaha.
We’ll make it simple and clear. You’ll find the perfect fit fast. Let’s get started!
List of Top 10 Yamaha Jet Mains
| Image | Title | Best For | Price |
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Carburetor Jet Kit Compatible with 2001-2005 Yamaha Raptor 660R YFM660R Multi Stage Main Pilot Jet Kit |
This is perfect for Yamaha Raptor 660R riders who want easy tuning and smooth power. It is also great for people who want fast setup and better fuel mix control. |
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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 kit is perfect for bike and ATV owners who need easy jet changes and a wide size range. It is also great for mechanics and riders who want strong brass parts that fit many Mikuni carburetors. |
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Strongthium Main Jet Kit for Mikuni HS HSR RS TM VM VM22 VM24 VM26 Carburetors Large Round N100.604#50 ~ #80 |
This kit is for riders who want to tune their Mikuni carburetors. It fits many sizes and is perfect for dirt bikes and street bikes. It helps your engine run smooth and strong. Easy to use and made with quality parts for a better ride. |
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Cyclemax One Pack compatible with Yamaha Jet Main #65 Pw50 620-14231-13-00 Contains One Jet Main and a Funnel |
This Cyclemax One Pack is perfect for Yamaha PW50 owners who want to keep their engine running smoothly. It’s easy to use and includes everything you need for a quick upgrade. |
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YGQ Carburetors Main Jet Kit for Mikuni VM TM Large Hex VM4/042 (#240 – #340) |
This YGQ Carburetors Main Jet Kit is perfect for motorcycle and ATV enthusiasts who need a reliable and compatible solution for their Mikuni carburetors. It’s ideal for those with 2-stroke or 4-stroke engines, whether for street, offroad, or snowmobile use. |
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Glixal Jog 50cc 72cc 1PE40QMB Scooter Carburetor VM11/22 Pit Bike ATV Dirt Bike Main Jet #70#75#80#85#90#95#100#105#110#115 (10 pcs set, M6 x 0.75) |
This carburetor jet set is perfect for DIY enthusiasts and mechanics who want to tune their scooter, ATV, or dirt bike. It’s ideal for those with a Jog Minarelli 49/50cc 2-stroke engine looking to fine-tune their air/fuel mixture. |
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Mikuni N100.604 Series Main Jet 150 (No CA) for Yamaha WARRIOR 350 1987-2004 |
This Mikuni N100.604 Series Main Jet 150 is perfect for Yamaha WARRIOR 350 owners from 1987 to 2004 who need high-quality aftermarket jets for their Mikuni carburetors. It’s not for California residents, but everyone else can use it to keep their bike running smoothly. |
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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 riders who tune their own carburetors and want smooth, strong engine performance. It suits anyone who needs easy jet changes for many bike models. |
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Yamaha Marine Main Jet #108, #65W-14943-79-00 |
This Yamaha Marine Main Jet is perfect for boat owners who need a reliable replacement part. It’s easy to install and fits specific Yamaha models. |
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Mikuni N100.604 Series Main Jet 145 (No CA) for Yamaha WARRIOR 350 1987-2004 |
This main jet is perfect for Yamaha Warrior 350 owners who need a reliable replacement part. It’s ideal for those outside California looking to upgrade their Mikuni carburetor with a high-quality aftermarket jet. |
Detailed Reviews
The top Yamaha Jet Mains are chosen with care to give you clear, trusted guidance. Each pick is reviewed for performance, fit, and value so you know what truly works. This simple guide builds confidence and sparks interest to explore the best options for your ride.
1. Carburetor Jet Kit Compatible with 2001-2005 Yamaha Raptor 660R YFM660R Multi Stage Main Pilot Jet Kit

The Carburetor Jet Kit is perfect for Yamaha Raptor 660R YFM660R models from 2001 to 2005. It helps your engine run better.
This kit includes 6 main jets, 4 slow pilot jets, and 4 shims. You can adjust the carburetor’s mixture ratio easily. It works well in different conditions.
Installation is simple and quick. No special tools or skills are needed. It saves you time and money.
| Pros | Cons |
|---|---|
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Perfect For:
This is perfect for Yamaha Raptor 660R riders who want easy tuning and smooth power. It is also great for people who want fast setup and better fuel mix control.
Ready to Purchase?
2. 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

Gohantee Jet Kit boosts engine power. It fits Honda, Suzuki, Yamaha, and more.
Made from solid brass for strength. CNC‑milled for precision. Works on 2‑stroke and 4‑stroke engines.
Set includes 30 jets: 16 main, 14 pilot. Simple to install. Contact us with questions.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for bike and ATV owners who need easy jet changes and a wide size range. It is also great for mechanics and riders who want strong brass parts that fit many Mikuni carburetors.
Ready to Purchase?
3. Strongthium Main Jet Kit for Mikuni HS HSR RS TM VM VM22 VM24 VM26 Carburetors Large Round N100.604#50 ~ #80

This jet kit fits many carburetors. It helps your engine run smooth.
The set has sizes from 50 to 80. These parts are strong and last. You can tune your bike with ease.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is for riders who want to tune their Mikuni carburetors. It fits many sizes and is perfect for dirt bikes and street bikes. It helps your engine run smooth and strong. Easy to use and made with quality parts for a better ride.
Ready to Purchase?
4. Cyclemax One Pack compatible with Yamaha Jet Main #65 Pw50 620-14231-13-00 Contains One Jet Main and a Funnel

This jet main fits your Yamaha PW50. It is a high-quality part. Your bike will run better.
Each pack includes a precise funnel. This tool makes maintenance easy.
The part replaces 620-14231-13-00. Order your Cyclemax pack today.
| Pros | Cons |
|---|---|
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Perfect For:
This Cyclemax One Pack is perfect for Yamaha PW50 owners who want to keep their engine running smoothly. It’s easy to use and includes everything you need for a quick upgrade.
Ready to Purchase?
5. YGQ Carburetors Main Jet Kit for Mikuni VM TM Large Hex VM4/042 (#240 – #340)

This jet kit fits Mikuni VM carbs. It has ten pieces in the set. The sizes go from 240 to 340.
The jets are made of brass. They work well and last long. You can tune your fuel fast.
Fix your bike now. Get more power today.
| Pros | Cons |
|---|---|
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Perfect For:
This YGQ Carburetors Main Jet Kit is perfect for motorcycle and ATV enthusiasts who need a reliable and compatible solution for their Mikuni carburetors. It’s ideal for those with 2-stroke or 4-stroke engines, whether for street, offroad, or snowmobile use.
Ready to Purchase?
6. Glixal Jog 50cc 72cc 1PE40QMB Scooter Carburetor VM11/22 Pit Bike ATV Dirt Bike Main Jet #70#75#80#85#90#95#100#105#110#115 (10 pcs set, M6 x 0.75)

Check your part size first. These jets fit 2-stroke engines.
The thread is M6. Each piece is small. The set has ten sizes.
Start with a large jet. Go down in small steps. This will save your engine.
| Pros | Cons |
|---|---|
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Perfect For:
This carburetor jet set is perfect for DIY enthusiasts and mechanics who want to tune their scooter, ATV, or dirt bike. It’s ideal for those with a Jog Minarelli 49/50cc 2-stroke engine looking to fine-tune their air/fuel mixture.
Ready to Purchase?
7. Mikuni N100.604 Series Main Jet 150 (No CA) for Yamaha WARRIOR 350 1987-2004

Boost your Yamaha Warrior 350 performance. This genuine Mikuni style main jet fits well. It helps your engine run smooth.
These are high quality aftermarket jets. They work for Mikuni carburetors. Install this 150 size jet today.
This product cannot be sold to California residents. It fits 1987 to 2004 models.
| Pros | Cons |
|---|---|
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Perfect For:
This Mikuni N100.604 Series Main Jet 150 is perfect for Yamaha WARRIOR 350 owners from 1987 to 2004 who need high-quality aftermarket jets for their Mikuni carburetors. It’s not for California residents, but everyone else can use it to keep their bike running smoothly.
Ready to Purchase?
8. 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 50-piece jet kit is perfect for tuning your motorcycle’s carburetor. It includes main jets, slow jets, and pilot cleaners for better performance. The kit fits many popular bike brands like Honda, Yamaha, and Kawasaki.
Made from high-quality brass, these jets are durable and easy to install. They come in various sizes to match your carburetor needs. Check your bike’s model before buying for the best fit.
This kit works with PWK, CVK, and PE carburetors and more. It’s a must-have for bike enthusiasts looking to improve engine efficiency. Upgrade your ride with this reliable and versatile tool kit.
| Pros | Cons |
|---|---|
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Perfect For:
This kit is perfect for riders who tune their own carburetors and want smooth, strong engine performance. It suits anyone who needs easy jet changes for many bike models.
Ready to Purchase?
9. Yamaha Marine Main Jet #108, #65W-14943-79-00

This is a Genuine Yamaha part. It fits your specific vehicle. Buy this main jet now.
It meets OEM specs. The fit is perfect. The form is right.
Verify your own fitment. Check your part number.
| Pros | Cons |
|---|---|
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Perfect For:
This Yamaha Marine Main Jet is perfect for boat owners who need a reliable replacement part. It’s easy to install and fits specific Yamaha models.
Ready to Purchase?
10. Mikuni N100.604 Series Main Jet 145 (No CA) for Yamaha WARRIOR 350 1987-2004

This is a main jet. It fits your Yamaha Warrior. Get top performance now.
These are high quality parts. They work with Mikuni carbs.
We cannot ship to California. This part is durable. It is easy to use.
| Pros | Cons |
|---|---|
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Perfect For:
This main jet is perfect for Yamaha Warrior 350 owners who need a reliable replacement part. It’s ideal for those outside California looking to upgrade their Mikuni carburetor with a high-quality aftermarket jet.
Ready to Purchase?
Buying Guide
Your bike needs the right jet main. Your engine feels stronger. Your ride feels smooth.
You want a guide that is clear, fast, and easy. This buying guide gives you a simple path to the best Yamaha jet mains. Enjoy a quick, helpful experience that makes tuning feel easy.
Factors to Consider When Buying Yamaha Jet Mains
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Fitment:
Make sure the jet matches your Yamaha model. Check the carb type and jet size. A correct fit keeps your engine safe. -
Material Quality:
Choose solid brass jets. They last long and resist wear. Good material keeps fuel flow steady. -
Jet Size Range:
Pick a kit with many sizes. More sizes help you tune for heat, height, and load. It gives you better control. -
Carburetor Type:
Know if your carb is Mikuni, Keihin, or PWK. Each carb uses its own jet style. A wrong type will not work. -
Ease of Install:
Look for kits that are simple to install. Clear parts save time. You get back on the road fast. -
Engine Use:
Think about how you ride. Hard riding needs richer jets. Light riding may need leaner jets. -
Durability:
Strong jets stay clean and hold shape. They keep your tune stable. This protects your engine. -
Set Size:
Large kits give more tuning options. Small kits are good for quick fixes. Choose based on your needs. -
Brand Trust:
Pick brands known for precision. Good brands make tuning easy. They help your bike run smooth. -
Price Value:
Compare what you get in the kit. More jets and tools mean better value. Make sure the price matches the quality.
Final Tip
Choose a jet main that fits your bike, your carb, and your riding style. Good jets make your Yamaha feel strong, smooth, and ready.