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Instruction Manuals:	Manual 1 (1.8 MB)
Tower Catalog Page:	200
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         This is the O.S. Max .18CV-RMX Marine Engine with Pull-Start.
                     ** Two Year Limited Warranty **

             Ideal upgrade from .15 cu in (2.4cc) engines used in
                          Ready-To-Run boat models.

FEATURES: Recoil Starter
          Rotary type carburetor (11J OSMG3817) with 6.5mm bore
          Water cooled
          Side exhaust
          Delivers 11% more power than a .15 size engine and has the same
            mounting dimensions

INCLUDES: O.S. Max .18 CV-RM Marine Engine with Pull-Starter, #8 Glow Plug
            Carburetor, instruction manual

REQUIRES: Fuel: O.S. suggests 10 to 30% nitro. However, they suggest starting
            with 20% nitro and changing to a higher or lower nitro content
            if required. Fuel should also contain 18% lubricant.

SPECS:    Displacement: 0.18 cu in (3.0cc)
          Bore: 0.63" (16.0mm)
          Stroke: 0.59" (15mm)
          Practical RPM Range: 3000-32,000
          Power Output: 1.35 hp @ 28,000 RPM
          Weight:  8.21oz (232.6g)

          Distance between mounting holes same side: 0.43" (11mm)
          Distance between mounting holes opposite side: 1.2" (31.4mm)
          Width of crankcase not including mounting flanges: 1" (25.6mm)
          Width including mounting flanges: 1.5" (39mm)
          Width including rear adapter (back plate): 1.6" (40mm)
          Height bottom of crankcase to top of cylinder head: 2.6" (66mm)
          Height bottom of mounting flanges/top of cylinder head: 2" (50.5mm)
          Length from backplate to end of crankshaft: 2.7" (68mm)
          Length from rear of recoil to end of crankshaft: 3.4" (87.8mm)
          Length from cylinder centerline to front of drive washer: 1.6" (41mm)
          Length form rear of recoil to front of drive washer: 2.9" (74.8mm)
          Exhuast port mounting hole centers: 1.1" (27.5mm)
          Distance from crankshaft centerline to top of head: 2" (50.5mm)
          Distance/crankshaft centerline to exhaust centerline: 0.98" (25mm)
          Crankshaft Threads: 5mmx0.8 pitch

COMMENTS: O.S. does not recommend running this engine in any salt water
           environment. Under such conditions, it is difficult to prevent
           the engine from becoming corroded and eventually inoperable.

          OS suggests using a 36-40mm diameter prop with 1.2-1.6 pitch.

          NEEDLE SETTINGS: High Speed Needle: 2 turns OUT from closed position
            per page 17 of manual.
            Low Speed Needle (aka: Mixture Control Valve): Rotate the screw
            until the head is flush with the carb body. Then turn the screw IN
            exactly 1/2 turn per page 23 of manual.
                                                                    jxs 5/16/05
                                                                    kzh 7/06/05
                                                                         ir/jxs



– 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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