This manual introduces the operation, maintenance, and maintenance of the O.S. engine.
This document is the Owner's Instruction Manual for the O.S. FS-70S II, FS-91S II, and FS-91S II-P four-cycle engines. It emphasizes strict adherence to safety instructions regarding propeller hazards, fuel handling, and carbon monoxide exhaust before operation. The manual covers the introduction, installation of the glow plug, relocation of carburettor controls, and fuel tank installation.
| Engine Type | Four Cycle Engine |
|---|---|
| Fuel Type | Model engine fuel |
| Fuel Pump Type (FS-91S II-P) | O.S. PD-07 diaphragm type |
No, this engine was designed specifically for model aircraft and should not be used for any other purpose.
An electric starter is recommended for this engine.