Page 2 - Mikuni Carburetor Catalog 21

HSR Series Carbs 42/45/48
Smoothbore Carburetors
Going fast has never been so easy!
The number one performance carburetor for Harley-Davidsons and American Big Twins now slips onto any late model Harley-Davidson using the original throttle cables. Mikuni’s Twin Cam, Big Twin and Sportster / Buell
Easy Kits even use Harley’s existing manifold, choke cable and air filter.
Keep a Harley’s stock factory look and fit with better throttle response, improved acceleration, increased power and torque. Mikuni’s smoothbore, flatslide throttle with roller bearings, and accelerator pump technology delivers peak performance
from idle to Wide Open Throttle.
Available in 42, 45, and 48mm throttle bores for use with stock, mild, and highly modified engines.
Bolt On a
25% Power and Torque Increase! Mikuni’s Easy Kit dramatically improves the
performance of Harley-Davidson’s Twin Cam engine and delivers unmatched throttle response and acceleration! Used with a Screamin’ Eagle Air Filter and an aftermarket exhaust system like the optional Screamin’ Eagle Mufflers, the HSR42 Easy Kit adds 25% more horsepower to the output of Harley’s Twin Cam motor. Maximum horsepower is increased from 57.8 to 72.2 hp, and maximum torque from 71.4 to 80.7 ft/lbs.
Stock Twin Cam HSR42 Kit
90
90
80
70 Torque 70
60 50 40
80
60 50 40
30
20 Horsepower 20
10
30
10
00 123456
RPM (x1000)
2
Horsepower
Torque (ft. lbs)