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  • O. S. Engines .25FX ABL 20D Carburetor 892 Muffler

    Product Number OSMG0525
    $0.00

    y Please allow 5-7 days for free in store pick up or flat rate shipping.
    1/10 Desert Truck Rtr
    qty $0.00

    O.S. has Updated the .25 SF with this New High-Performance .25 FX. This Engine may be used in Sport and Aerobatic Aircraft. The FX is Designed to Use a Muffler ...*More

    O.S. has Updated the .25 SF with this New High-Performance .25 FX. This Engine may be used in Sport and Aerobatic Aircraft. The FX is Designed to Use a Muffler or Tuned Pipe. Comes with a 2-Year Warranty. High Speed Needle: 1.5 - 2 turns out from fully closed Low Speed Needle: 2mm gap between the needle and spray bar at full throttle (looking down the neck of the carb)*Less

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    • Also, the plating process is more consistent, resulting in a more precise fit between piston and sleeve, for better compression, longer life.
    • Remote Needle Attached to the Backplate keeps fingers away from prop
    • Schnuerle Porting (Schnuerle scavenging)Advanced Bi-Metallic Liner.
    • Side Exhaust
    • This helps themetal to bond to the cylinder, and is more durable.
    • This process uses a double layer ofplating material, rather than one thicker layer.
    • Twin Ball Bearing-Supported Crankshaft
    • Bore:18mm (.708)
    • Crankshaft Thread Size:1/4-28
    • Displacement:4.07cc (.2485 cu in)
    • Height:75.5mm (2.97)
    • Horsepower:.84 BHP at 18, 000 RPM
    • Length:75.6mm (2.98) distance from the backplate to drive washer
    • Pattern Flying if a tuned pipe is used:9.5x5
    • Practical RPM Range:2, 500 - 19, 000 RPM
    • Recommended Props:9x5, 9x6
    • Sport Flying:9x5, 9x6, 9.5x5, 10x4, 10x5
    • Stroke:16mm (.630)
    • Weight:248g (8.8oz) 10.8oz w/muffler
    • Width:30mm(1.18) width of engine neglecting engine mounting flanges
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