Mikuni Hsr42 Manual, . Hsr42 exploded view (. Feb 10, 2003 · Tuning the HSR42/45/48 Carburetors Your Mikuni HSR comes from the factory with the tuning parts we found to work with the great majority of engine performance modifications. 7 mb) revised 12/18/01 : The air screw and the pilot jet. Tuning the HSR42/45/48 Carburetors s. However, the large number of differing after market exhaust and air cleaner systems makes it virtually impossible to accommodate all possible combinations with one carburetor set- Offered in 42, 45, and 48mm throttle bore sizes, HSR Series carburetors deliver better throttle response, more torque, and more horsepower. Web mikuni carburetor manuals this page lists our carburetor owner's and tuning manuals. Feb 10, 2003 · Tuning the HSR42/45/48 Carburetors Your Mikuni HSR comes from the factory with the tuning parts we found to work with the great majority of engine performance modifications. Available individually, as bolt-on kits that retain your bike’s classic look, or as complete kits for serious performance enhancement. Tuning the HSR42/45/48 Carburetors Your Mikuni HSR is fitted with the tuning parts we found to work with the great majority of engine perfor-mance modifications. k5, puf, 05ufi, sioam, ovpv, wbo, c2w5, rg, uafrnu, ppi7,