The Mikuni HSR45 flatslide carburetor delivers extremely crisp throttle response while providing an unrestricted bore for maximum flow.  Maximum flow allows your engine to reach its full potential so you can accelerate and pass with confidence.  An HSR45 carburetor kit bolted onto a standard Harley Twin Cam used with a Screamin' Eagle air cleaner will ADD up to 30% more horsepower over stock. 

You'll enjoy many years of unbeatable performance and reliability.  They install quickly and easily using the OEM throttle cables and choke cable.  Dollar for dollar no one beats a Mikuni carburetor for performance, tunability, and reliability.

You can keep the Harley's factory look and fit while enhancing the throttle response, acceleration, power, and torque output.  Mikuni's flatslide smoothbore design with accelerator pump and slide roller bearing technology delivers peak performance across the entire powerband.  With Mikuni's accelerator pump technology there's no hesitation from idle to WOT. 

The Mikuni HSR45-4 Total carburetor kit is simple bolt-on horsepower for all 1999-Present Harley-Davidson Twin Cam motorcycles.  The carburetor in this kit is available in either a standard finish or in a polished finish, don't forget to select your option before adding to your cart.  For use with mild or highly modified engines.  ALL of the following components are included for an extremely easy installation:

• TM45-2 Mikuni HSR45 pre-jetted flat slide carburetor with roller bearing slides, polished or standard
  
• HS42/012-300 K&N Air Filter, 3” (1)
  
• HS42/019 Brackets, Air Filter (2)
  
• HS42/021-250-CHR Cover Air cleaner (1)
  
• HS42/034 O-rings (4)
  
• HS42/037 Bolts, 1/2”-13 x 1” (2)
  
• HS42/038 1/2” Washers (2)
  
• HS42/061-45 Manifold (1)
• 26995-86A Premium intake manifold seals (2)
  
• HS42/062-45 Rubber Flange (1)
  
• KHS-020 Breather Kit (1)
  
• N100.604-170 Main Jet (1)
  
• N100.604-180 Main Jet (1)
  
• RS36/02-17 Hose Clamp (1)
  
• RS36/23 Choke Bracket (1)
  
• RS36/27-075 Bolts, 5/16” x 3/4” (4)
  
• RS36/28 Nuts, 5/16” (2)
  
• RS36/3609 Hose, 3/16” x 9” (1)
  
• RS36/37 Elbows, Plastic, 3/8” (2)
  
• RS36/47 Plates, Back (2)
  
• RS36/54 Screw, Cover (1)
  
• Z70/042 Flat Washers, 5/16” (6)
  
• Z70/045 Hose Clamp (1)
  
• Z70/05512 Hose, Fuel (1)
  
• Z70/146 Cable Ties, 7-1/2” (4)
  
• 990-662-002 Choke Cable Assy (1)
  
• HS42/073 Cable Lube (1)
• Extra horsepower is always included!

NOTE : This kit uses the Twin Cam stock throttle cables.  Premium intake manifold seals ARE included with this kit.  No one else provides seals with these kits.

This carb kit comes pre-jetted for immediate installation.  It is designed to work with the OEM MAP sensor and throttle cables.  Tuning and performance specs have been developed over the years to suit a wide variety of conditions, however some fine tuning may be required to attain the desired combination of performance, fuel mileage, and drivability.  Extra main jets are included for tuning and additional genuine Mikuni parts and accessories are always available at low prices.  Alternatively kits can be customized utilizing your own jetting specifications.

WARNING : This carburetor kit will seriously wake up your motorcycle!

Some "other" retailers may be selling these kits incomplete.  They don't include all the necessary items for a successful installation and that forces you to buy more items, possibly at a higher cost.  These kits from The Power-Barn are 100% COMPLETE, you will need nothing else for installation...guaranteed!

Please feel free to contact us with any additional questions or requests, we are available by direct line, IM, or email.  We are available for tuning and setup questions as well as continuing product support after the sale.