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34330 FSa-56II w/F-4040 Silencer

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34330 FSa-56II w/F-4040 Silencer

O.S. Engines OSMG0957 (34330)
In Stock
$649.99

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  • 34330 FSa-56II w/F-4040 Silencer

    This is the O.S. Engines FSA-56II Four Stroke Engine with the F-4040 Silencer.

    Features

    Blow-by oil exits through the breather nipple on back plate for more
    stable operation
    Black rocker cover
    40NA carburetor
    Power Box designed muffler for quiet operation is fully positionable
    for tight fitting applications
    Two-year limited warranty through Hobby Services beginning at date of
    purchase

    Includes

    O.S. Engines FSA-56II Engine, F-4040 Silencer, Type F Glow Plug,
    40NA Carburetor Header Pipe and Manual

    Requires

    Fuel: 10%-20% nitromethane with 18% lubricant. Synthetic, castor, or
    a synthetic/castor lubricant blend may be used.
    NOTE: Certain four-cycle fuels cannot be used due to low oil content
    However, SOME four-cycle fuels such as the Wildcat 4-Cycle 15%
    (CATP9109) may be used due to its 18% oil content.
    When choosing fuels for this engine, be sure to select a fuel with
    at least an 18% lubricant content.
    Propeller: Sport & Aerobatic, 13x6, 12x6, 12x7, 12x8
    Scale, 13x6, 13x7, 12x6, 12x7, 12x8

    Specifications

    Displacement: 0.569 cu in (9.32cc)
    Bore: 0.945" (24mm)
    Stroke: 0.811" (20.6mm)
    Engine Weight: 13.9oz (394g)
    Output: 1.0 ps/0.99 hp @ 10,000 rpm
    Practical RPM: 2,400 - 13,000
    Crankshaft Thread Size: UNF1/4 x 28
    Height from Bottom of Mounting Tab to Top of Crankcase: 3.3" (84mm)
    Width of Crankcase below Mounting Tabs: 1.3" (34.1mm)
    Center of Mounting Holes Same Side: 0.69" (17.5mm)
    Center of Mounting Holes Opposite Side: 1.7" (44mm)
    Center of Front Mounting Hole to Drive Washer: 1.98" (50.3mm)
    Center of Rear Mounting Hole to Drive Washer: 2.6" (67.5mm)
    Center of Crankcase to Center of Needle Assembly: 1.3" (32.5mm)
    Center of Crankcase to Outer End of Crankshaft: 3.5" (88mm)
    Muffler Angle in Relation to Engine: 11°
    Mounting Hole Diameter: 0.14" (3.7mm)
    Carburetor;
    Needle Settings: High Speed: 2.5 - 3 turns out from fully closed
    Low Speed: Flush with carb body

  • Test 1

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