Instruction Manuals:	Manual 1 (1.4 MB)
Tower Catalog Page:	200
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   Power your Boat with the best O.S. Marine Engines. This INBOARD Engine
                  is Perfect for that Scale or Sport Boat.

                   Due to the racing nature of this engine
                  O.S. Max Offers NO WARRANTY on this engine.

FEATURES: Water-Cooled Cylinder Head
          One-Piece Crankcase
          ABC Construction
          Ball Bearing-Supported Crankshaft
          Rear Exhaust (rear exhaust points toward front of boat)
          Schnuerle Porting
          Rear Rotor Intake
          New Type #40A Carb

INCLUDES: One Assembled Engine
          One Instruction Manual and Decals

SPECS:    Displacement:  7.45cc (0.455 cu in)
          Bore: 22.0mm (.866")
          Stroke: 19.6mm (.772")
          Power Output: 2.5 BHP at 23,000 RPM
          Weight: 445g (15.7oz)
          Practical RPM Range: 2,500 - 28,000 RPM
          Crankshaft Thread Size: 1/4-28
          Length: 106.0mm (4.17") from carb intake to the front of crankshaft
          Width: 36mm (1.42") neglecting the engine mounting flanges
                 45mm (1.77") between the mounting hole centers
          Height: 87mm (3.43")

          Needle Settings: High Speed: 1-1.5 turns out from fully closed
                           Mixture Control (low speed): 2.5 turns out from
                                       fully closed

REQUIRES: Fuel with a lubricant content of 16% and a nitro content between 10%-
            20%
          Glow plug (OSMG2691), the O.S. #8 is recommended for 5%-25% nitro
            fuels)
          Header (OSMG2723), Flywheel (OSMG2646), Joint, and Tuned Pipe

                                                                    3-20-96/eke
                                                                          ir/jl
                                                               updt jxs 3/31/03
                                                                updt lmm 4/6/09



– If you need more information, use these O.S. resources –

Click Here: Manufacturer's Product Web Page
E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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