Your cart is empty
Start ShoppingMIKUNI F42-11 HSR 45/42 Carburetor Easy Kit - High-Performance Fuel System for Powersports
Fits your
May not fit your
Description
Elevate your powersports engine's performance with the MIKUNI F42-11 HSR 45/42 Carburetor Easy Kit. This premium fuel system delivers optimized air-fuel ratios for smoother power delivery and improved throttle response, all while maintaining your factory appearance. Perfect for riders seeking reliable performance upgrades without complex modifications.
Key Features
- Pre-Assembled Easy Kit: Ready-to-install design saves time and labor, using your stock manifold and cables for hassle-free integration.
- 45mm/42mm Bore Sizes: Precision-engineered primary/secondary jets for balanced fuel delivery across engine RPM ranges.
- Gravity-Fed or Fuel Pump Compatible: Versatile fuel delivery options for various engine configurations and fuel system setups.
- Aluminum Body with Brass Jets: Durable construction resists corrosion while ensuring accurate fuel metering for long-lasting performance.
- Stock Airbox Compatibility: Retains original factory airbox or upgrade to Screamin' Eagle performance filters for enhanced airflow.
- California A.R.B. Legal: Specialized kits meet emissions standards for EVO Big Twin applications.
Why Choose This Product
Upgrade to a Mikuni HSR Series carburetor designed for precise fuel delivery, boosting engine efficiency and power output. The easy kit's compatibility with stock components ensures minimal modification, while the durable aluminum construction withstands harsh riding conditions. With options for both gravity-fed and fuel pump systems, this kit adapts to diverse engine setups, making it a versatile choice for performance enthusiasts. Always verify local emissions regulations for legal compliance.
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
$497.85
In Cart
Elevate your powersports engine's performance with the MIKUNI F42-11 HSR 45/42 Carburetor Easy Kit. This premium fuel system delivers optimized air-fuel ratios for smoother power delivery and improved throttle response, all while maintaining your factory appearance. Perfect for riders seeking reliable performance upgrades without complex modifications.
Key Features
- Pre-Assembled Easy Kit: Ready-to-install design saves time and labor, using your stock manifold and cables for hassle-free integration.
- 45mm/42mm Bore Sizes: Precision-engineered primary/secondary jets for balanced fuel delivery across engine RPM ranges.
- Gravity-Fed or Fuel Pump Compatible: Versatile fuel delivery options for various engine configurations and fuel system setups.
- Aluminum Body with Brass Jets: Durable construction resists corrosion while ensuring accurate fuel metering for long-lasting performance.
- Stock Airbox Compatibility: Retains original factory airbox or upgrade to Screamin' Eagle performance filters for enhanced airflow.
- California A.R.B. Legal: Specialized kits meet emissions standards for EVO Big Twin applications.
Why Choose This Product
Upgrade to a Mikuni HSR Series carburetor designed for precise fuel delivery, boosting engine efficiency and power output. The easy kit's compatibility with stock components ensures minimal modification, while the durable aluminum construction withstands harsh riding conditions. With options for both gravity-fed and fuel pump systems, this kit adapts to diverse engine setups, making it a versatile choice for performance enthusiasts. Always verify local emissions regulations for legal compliance.| SKU | GM6B11ED9B |
|---|---|
| MPN | F42-11 |
| Brand | MIKUNI |
| Category | Intake/Carb/Fuel System |
0.0
0 reviews
0
Log in to write a review.
Reviews
No reviews yet. Be the first to review this product!
Featured Review
Frequently Asked Questions
The Easy Kit comes pre-assembled with jets, needles, and internal components already installed and calibrated for a specific engine application. This saves time compared to buying individual components and assembling them yourself.
The HSR 45/42 is designed for larger displacement engines (typically 1200cc+). You MUST verify the F42-11 calibration matches your specific engine. Contact Mikuni with your motorcycle's year, make, model, and engine displacement for confirmation.
The Easy Kit comes pre-jetted for a specific application. If you have significant modifications (different intake, exhaust, air filter, or altitude changes), you may need to adjust the main jet, needle position, or pilot jet. Start with the factory calibration and adjust if needed.
Mikuni HSR carburetors offer improved fuel atomization, better throttle response, and more tuning flexibility compared to many OEM carburetors. They're popular for performance and custom builds.
Inspect fuel lines annually, clean or replace the fuel filter regularly, and perform a complete carburetor cleaning every 2-3 years or if you experience running issues. Store the motorcycle with fuel stabilizer if unused for extended periods.
Comparison vs Stock/OEM
Most OEM carburetors on cruisers are Keihin or Teikei designs. The Mikuni HSR offers superior fuel atomization and tuning flexibility.
Improvements
- Better throttle response and crisp acceleration
- Improved fuel economy with proper jetting
- More tuning options (adjustable needle, multiple jet sizes)
- Better cold-start performance
- Easier to service and clean
Considerations
- Requires proper jetting for your specific setup
- May need intake manifold modifications depending on application
- Requires synchronization if dual-carb setup
- Initial setup takes more time than OEM
Durability & Warranty
Expected Lifespan
10-15 years with proper maintenance; internal components may need cleaning every 3-5 years
Warranty
Typically 1-2 years manufacturer warranty (verify with retailer)
Maintenance
['Inspect fuel lines annually for cracks or deterioration', 'Clean or replace fuel filter every 1-2 years', 'Full carburetor cleaning every 3-5 years or as needed', 'Check idle mixture and synchronization annually', 'Use fuel stabilizer if storing motorcycle for extended periods']
What Others Are Saying
Reviews from across the web
