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Saito Engines FG-90R3 90cc 3-Cylinder Gasoline Radial Engine

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  • Detail

    Overview

    The Saito™ FG-90R3 engine is an updated version of the FG-84R3D. The displacement has been increased while the physical dimensions remain the same. This provides a modest increase in power and makes it a drop-in replacement for the FG-84R3D.

    This engine is a scale-modelers delight, delivering the incredible sound and smooth reliability that Saito has built their reputation on. Above and beyond the advantages of a 4-stroke gasoline operation, this is the engine for those who like to run clean and efficient engines. Accompanied by Saito power and precision craftsmanship, the distinguished look and sweet sound, this is the engine many of you have been waiting for. This engine provides easy starts and reliable performance due to the 2S Li-Po-compatible electronic ignition. The Walbro carburetor features a rotating barrel specially made for 4-stroke engines, ensuring reliable fuel feed and outstanding performance at any attitude. An engine heat sink provides better cooling and performance in demanding conditions. Supplied complete with mufflers, engine mount, and electronic ignition.

    As an expert in reliable 4-stroke engines, Saito engineers spend years developing the best-built 4-stroke gasoline engines. The power-to-weight ratio of a Saito engine creates a one-of-a-kind flying experience. For serious modelers, the FG-90R3 is here with the quality, sound and precision craftsmanship Saito is known for.

    Key Features

    • Increased-displacement version of the FG-84R3D
    • 2S Li-Po battery compatible ignition provides easy starts and reliable performance
    • Engine heat sink for improved cooling and performance
    • Amazing 4-stroke sound Saito™ engine sound
    • Updated intake design
    • Complete with electronic ignition, mufflers and engine standoffs
    • Horizon Hobby recommends the use of Red Line or Power Model synthetic oil only, at a mix ratio of 16:1 – 20:1

    Product Specs

    Bore
    37.2mm
    Cylinder Type
    Ringed piston
    Cylinders
    Radial
    Displacement
    90cc (6.0 cu in)
    Engine (Only) Weight
    111.5 oz (3,161g)
    Ignition Weight
    8.8oz (250g)
    Muffler Type
    10mm Flex Exhaust Pipes included
    Muffler Weight
    5.5oz (157g)
    Oil Type & Content
    Power Model 2T, or Red Line. 15:1 break in, 20:1 after.
    Plug Type
    CM6
    Power Type
    Gas
    Prop 65
    Prop 65 Warning Icon  California Residents Prop 65 WARNINGS.
    Prop Range
    24x10" - 25x12"
    RPM Range
    1,300 - 7,000
    Stroke
    27.6mm
    Total Weight
    125.9 oz (3,568g)
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