The document begins with critical safety warnings regarding propeller hazards, fuel toxicity, and carbon monoxide risks. It emphasizes that the engine is designed specifically for model aircraft and should not be used for other purposes.
Detailed instructions cover installation on sturdy mounting beams, assembly of the silencer, and carburetor adjustment. The manual also includes specifications such as displacement (19.96 cc) and recommended fuel types containing nitromethane.
| Displacement | 19.96 cc (1.218 cu.in.) |
|---|---|
| Bore | 30.4 mm (1.197 in) |
| Stroke | 27.5 mm (1.083 in.) |
| Practical R.P.M. | 2,000 ~ 11,000 r.p.m. |
| Output | 1.9 BHP/11,000 r.p.m. |
The FS-120S-E runs on standard commercially available model glowplug engine fuel containing 5 — 15% nitromethane and at least 18% lubricant.
An O.S. Type "F" glowplug is fitted to the engine.
No, you should never operate your engine in an enclosed space because it exhausts deadly carbon-monoxide.