Your cart is empty
Start ShoppingMIKUNI FN100604-150 Large Round Main Jets - Precision Fuel Delivery for High-Performance Engines
Fits your
May not fit your
Description
Precision fuel delivery is critical for maximizing engine performance, and MIKUNI's Large Round Main Jets deliver unmatched reliability for carbureted powersports engines. These jets ensure consistent fuel flow, enhancing throttle response and power output while maintaining smooth operation under demanding conditions.
Key Features
- Precise Fuel Flow Calibration: Engineered for optimal air-fuel ratios, ensuring peak performance across a wide range of RPMs.
- Durable Brass Construction: Resists corrosion and wear, maintaining accuracy even in harsh environments.
- Universal Compatibility: Designed to fit most MIKUNI carburetor models, simplifying maintenance and upgrades.
- Easy Installation: Streamlined design allows for quick replacement without compromising system integrity.
Why Choose This Product
Whether you're tuning a high-performance motorcycle, ATV, or off-road vehicle, these jets provide the precision needed to achieve balanced power delivery. Their robust construction ensures long-term reliability, while the universal fit reduces downtime and costs. Perfect for riders seeking to fine-tune their engine's performance without sacrificing durability or ease of use.
Delivery
Checking availability...
Estimated arrival
Order within to ship today
Orders ship
Shipping to
Enter your ZIP code for delivery estimate
Price Match Guarantee
Found it cheaper?
Log in to submit a price match request.
Price
Quantity
Free Shipping $100+
14-Day Returns
Secure Checkout
Price Match
Complete the Build
This item
$21.85
In Cart
Precision fuel delivery is critical for maximizing engine performance, and MIKUNI's Large Round Main Jets deliver unmatched reliability for carbureted powersports engines. These jets ensure consistent fuel flow, enhancing throttle response and power output while maintaining smooth operation under demanding conditions.
Key Features
- Precise Fuel Flow Calibration: Engineered for optimal air-fuel ratios, ensuring peak performance across a wide range of RPMs.
- Durable Brass Construction: Resists corrosion and wear, maintaining accuracy even in harsh environments.
- Universal Compatibility: Designed to fit most MIKUNI carburetor models, simplifying maintenance and upgrades.
- Easy Installation: Streamlined design allows for quick replacement without compromising system integrity.
Why Choose This Product
Whether you're tuning a high-performance motorcycle, ATV, or off-road vehicle, these jets provide the precision needed to achieve balanced power delivery. Their robust construction ensures long-term reliability, while the universal fit reduces downtime and costs. Perfect for riders seeking to fine-tune their engine's performance without sacrificing durability or ease of use.
| SKU | GM588A8783 |
|---|---|
| MPN | FN100604-150 |
| Brand | MIKUNI |
| Category | Jets |
0.0
0 reviews
0
Log in to write a review.
Reviews
No reviews yet. Be the first to review this product!
Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Carbureted motorcycles/ATVs (e.g., Honda XR series, Yamaha YZ, Suzuki RM) | 1980-2025 |
| Kawasaki | KX, KLX series | 1990-2010 |
Frequently Asked Questions
Fits Mikuni large round main jet applications like VM26-VM44, BS32-42, HSR42/45, TM series.
Use plug chop method or wideband O2 sensor; typically for mid-range tuning at sea level with stock airbox.
Yes, OEM Mikuni part number FN100604-150.
No, Keihin uses different jet profiles; stick to Mikuni carbs.
Installation Guide
Difficulty
Easy
Est. Time
5 min
Tools Required
- Small flathead screwdriver
- Jet cleaning wire or carb cleaner
Pro Tips
- Remove carburetor float bowl to access. Test plug chops after install to verify mixture
Common Mistakes to Avoid
- Not cleaning jet passages before install
- Incorrect jet size selection without testing
Comparison vs Stock/OEM
Direct OEM replacement for factory Mikuni carbs
Improvements
- Precision machined for consistent fuel flow
- Better corrosion resistance than generics
Considerations
- Genuine Mikuni outperforms cheap aftermarket copies in durability
Durability & Warranty
Expected Lifespan
Indefinite with proper cleaning (replace if damaged)
Warranty
Limited lifetime (manufacturer defect only)
Maintenance
Clean with carb cleaner every service; inspect for wear/clogs
What Others Are Saying
Reviews from across the web
