Mikuni HSR 42mm Carburetor Easy Kit - Harley Evolution Big Twin
About Mikuni
Mikuni has supplied carburetors and fuel-system components to the motorcycle industry for decades, and its HSR series remains a common choice for carbureted Evolution and Twin Cam V-twins where a clean, tunable fuel curve matters more than electronics.
Unleash the full potential of your Harley-Davidson Evolution Big Twin with the Mikuni HSR 42mm Carburetor Easy Kit. This kit is engineered for a straightforward installation, allowing you to retain your stock manifold and throttle cables.
Why riders pick this
- Retains stock manifold and throttle cables
- Compatible with stock airbox or Screamin' Eagle filters
- 42mm Mikuni HSR carburetor for improved performance
- Designed for a clean, integrated look
- Straightforward installation for EVO Big Twins
The Mikuni HSR 42mm Carburetor Easy Kit is a direct bolt-on upgrade for 1990-1999 Evolution Big Twin engines. Designed to work seamlessly with your existing setup, it includes a special adapter that allows you to keep your stock airbox or easily upgrade to a high-performance Screamin' Eagle air filter.
Optimized Fuel Delivery
- Designed for a direct fit with your stock manifold and throttle cables
- Includes a special adapter for stock airbox compatibility
- Ready for a Screamin' Eagle performance air filter upgrade
- Features a 42mm Mikuni HSR carburetor for enhanced performance
Simple Performance Upgrade
This Easy Kit simplifies the carburetor upgrade process, making it accessible for riders who want better throttle response and more power without extensive modifications. It's an ideal choice for uncorking a detuned factory bike while maintaining a clean, factory-like appearance.
Specifications
- Brand: Mikuni
- Manufacturer Part #: F42-7
- Carburetor Size: 45/42mm
- Length: 8.7 in
- Width: 16.1 in
- Height: 5.8 in
- Weight: 5.43 lbs
- Country of Origin: Japan
Common questions
Will this carburetor work with my existing stock air cleaner?
Yes, this kit includes a special adapter that allows you to retain your stock airbox. You also have the option to upgrade to a Screamin' Eagle high-flow air filter for further performance gains.
Do I need to replace my manifold or throttle cables with this kit?
No, the Easy Kit is specifically designed to bolt onto your stock manifold and reuse your existing throttle cables, simplifying the installation process.
Is this kit legal for use in all areas?
A California A.R.B. Legal Kit is available for EVO applications in emissions-controlled areas. Please check your local regulations before installation, as other kit versions may not be street-legal in all regions.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Mikuni |
| TYPE | Intake/Carb/Fuel System |
| SKU | 14-2015 |
| WEIGHT | 5.43 lb |
