Home / Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN
  • Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN

Saito Engines FG-21 (1.26) 4-Stroke Gas Engine: BN

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  • Detail

    Overview

    There are a lot of advantages to going with gas, like cleaner operation and cheaper fuel. But Saito™ 4-stroke gas engines give modelers more, namely some of the most impressive power-to-weight ratios in their class. The FG-21 engine is no exception. Based on the groundbreaking Saito FG-20 engine, it packs 21cc of power into a 17cc case. Accompanying the extra displacement is the latest carb technology, updated exhaust valve seats and, of course, the sweet 4-stroke sound Saito engines are famous for.

    Key Features

    • Gasoline engine lowers operating costs as much as 90%
    • Latest carb technology makes for easier tuning and operating
    • 21cc displacement in a 17cc case
    • New valve seat design
    • New, smaller magnetic ignition system fits into tighter cowl installations
    • 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

    Benchmark Prop
    APC 16 x 6 @ 8800 rpm
    Bore
    1.26 in (32.0mm)
    Crankshaft Threads
    M8 x 1.25 mm
    Cylinder Type
    AAC
    Cylinders
    Single
    Displacement
    1.25 cu. in. (20.52 cc)
    Engine (Only) Weight
    24.1 oz (0.69 kg)
    Ignition Weight
    4.0 oz (113 g)
    Muffler Threads
    13mm
    Muffler Type
    Cast screw-on
    Muffler Weight
    2.9 oz (83 g)
    Oil Type & Content
    20:1 gas-to-oil ratio; EVOX1001Q synthetic oil recommended
    Plug Type
    1/4-32 Spark Plug (SAIG20120)
    Power Type
    Gas
    Prop 65
    Prop 65 Warning Icon  California Residents Prop 65 WARNINGS.
    Prop Range
    15 x 8 to 16 x 8 2-blade; 14 x 9 to 15 x 7 3-blade
    RPM Range
    2000-9500
    Stroke
    1.02 in (26.0mm)
    Total Weight
    31.2 oz (0.89 kg)
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