This is the complete 21JS Slide Valve Carb used on the
                  OS Speed .21VZB and OS Speed 28ZX Engines.

FEATURES: Genuine O.S. replacement parts

INCLUDES: One complete 21JS Slide Valve Carb
          and Red Carb Reducer
          One Rubber Carb Gasket

REQUIRES: Installing on engine

SPECS:    Length: 0.94" (24mm) approx. including needle and idle stop screw
          Width:  2.15" (54.5mm) approx. including needle and throttle arm
          Height: 2.13" (54mm) approx. including needle
          Diameter: 0.63" (15.9mm) OD of intake (throat) not including
                    Carb Reducer
                    0.35" (9mm) ID of intake (top) including Carb
                     Reducer
                    0.59" (15mm) OD of neck including thermo insulator
                     (the part that inserts into the crankcase)
                    0.35" (9mm) ID of neck @ narrowest point (top)
                    0.42" (10.75mm) ID of neck @ widest point (bottom)

COMMENTS: Carb can be identified by its black color and the "21J" marking
          on the back side of carb body

                                                                     cnh 1/2/09
                                                                         ir/jxs