This is the Ofna Force .12 Side Force Engine w/Pull Starter.

FEATURES: 7 horizontal cooling fins on the machined Red aluminum head
          Slide Valve Carburetor w/flat head screwdriver High-Speed adjustment
          Pre-set Low Speed needle valve

INCLUDES: One assembled .12 size S engine w/Slide Valve Carb, pull starter
            and drive washer with collet
          One set of instruction/warranty/parts list information sheets

REQUIRES: Glow Plug: recommend OS Max #8 or McCoy #MC59 (with 2 copper washers)
          Glow Plug Starter
          Glow Plug Wrench
          Fuel: 20% is recommended such as Cool Power or O-Donnell
          Fuel Bottle
          Engine Tuning Screwdriver
          Air Filter and Oil

SPECS:    Horsepower:        .55 BHP at 29,000 RPM
          RPMs:              3,000 - 30,000 practical range, 38,000 max
          Length:            74mm (front of crankcase to back of pull start)
          Height:            86mm (3.40")(bottom of pull start to top of head)
          Mounting Holes on opposite side:       1.22"   (31mm)
          Mounting Holes on center front to back: .48" (12.1mm)
          Distance from drive washer to end of starter case: 3.31" (84mm)
          Width at widest point (mounting flanges): 39mm (2.54")
          High Speed Needle: 2½ turns out from closed
          Low Speed Mixture: initially flush with carb housing, turn clockwise
            using small 1/8th" turns to lean out mixture.
          Maximum running temperature: 250°F (do not exceed this temperature,
            however a lower temp is better).

                                                                   cmc 03/16/02
                                                                          ir/kh
                                                               updt jxs 1/12/04