Saito Engines FG-73R5 73cc 5-Cyl 4-Strk Gas Radial Eng

Tower Stock# SAIG2241  •  Manufacturer Stock# SAIEG73R5
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Notes from our tech department:


Saito FG-73R5 73cc 4-Stroke 5-Cylinder Gasoline Powered Radial
Engine with Muffler


2-Stroke Oil: Such as Klotz KL-200, or Deluxe Materials PowerModel
Propeller: 22x10 - 23x10
Ignition Battery: 6 - 8.4V with mAh rating of at least 1500mAh


Displacement: 4.4 cu in (72.7 cc)
Bore: 1.14 (29.0mm)
Stroke: 0.87 (22mm)
Oil to Gasoline Mix Ratio: 15-20:1, 15.1 ratio recommended for break-
Weight: 13.4oz (380g)
Practical RPM: 1,200 - 7,000RPM
Firing Order: 1 3 5 2 4
Crankshaft Threads: M10x1.25
Center of Engine to Drive Washer: 3.4 (86mm)
Mounting Bracket to Center of Engine: 3.8 (96mm)
Mounting Bracket to Drive Washer: 7.2 (182mm)
Outer Diameter: 9.0 (230mm)
Vertical Mounting Hole Bracket Centers: 3.1 (80mm)
Horizontal Mounting Hole Bracket Centers: 4.3 (110mm)

jxs 080119



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