Tuesday, March 10, 2026

Ditch that finicky EFI system. No more Magneti Marelli, Delphi, Delphi 2! Tired of the same old fueling issues on your 1999 to present Twin Cam? No need to worry. We have a tried and trued carburetor conversion kit. Everything you need to swap your existing EFI setup over to Carburation. Fuel tank bungs and plumbing, tunable spark box, HSR42-48 Carb, Air filter, All necessary fittings to get it plumbed up and running. 1260$




1999 to present Harley Davidson Twin Cam 96cui

1999 to present Harley Davidson Twin Cam 115cui and larger Bigtwin Models 

1999 to present Harley Davidson Twin Cam 96cui up Bigtwin Models using standard width manifolds

Available at https://speedmotoco.com/harley-davidson-hsr42-efi-injection-mikuni-conversion-kit-hsr42-19-twin-cams-twin-cam/

Monday, March 09, 2026

Mikuni HSR kits Easy install! SpeedMotoCo



 Mikuni's HSR 42 performance carburetor slips onto your 1999 to 2006 Harley Twin Cam or 1990-1999 EVO engine using the original throttle cables and stock manifold. Mikuni also includes an adapter bracket for fitting an S&S or any CV type carb air cleaner! For the maximum available increase in all round performance and power available, this kit will instantly impress.

  • Keeps stock factory look and fit, with better throttle response, improved acceleration, increased power and torque
  • Smoothbore, flatslide with roller bearings, and accelerator pump technology delivers peak performance from idle to full throttle
  • Comes jetted to work with most applications, though some tuning may be required
  • Includes N100.604-165 main and VM28/486-20 pilot for tuning
  • Requires Hi-Performance air filter (sold separately)
  • Made in the Japan

Mikuni's HSR 42-10 performance carburetor slips onto your 1994 to 2000 Harley Sportster 1200 models using the original throttle cables, the bike's existing manifold and choke cable along with the stock air-cleaner. For the maximum available increase in all round performance and power available, this kit will instantly impress.

  • Keeps stock factory look and fit, with better throttle response, improved acceleration, increased power and torque
  • Smoothbore, flatslide with roller bearings, and accelerator pump technology delivers peak performance from idle to full throttle
  • Comes jetted to work with most applications, though some tuning may be required
  • Includes N100.604-155 and N100.604-165 main jets for tuning
  • Made in Japan

Sportster - XLH 1200 • 1994-2003 Sportster Custom - XL 1200C 1996-2006 Sportster Sport - XL 1200S 1996-2003

Check it out here on the website: https://speedmotoco.com/mikuni-carburetor-kits/harley-davidson-carburetors/