O.S. Engine OSMG0979 FS-200S-P Surpass Four-Stroke Powerplant  [OSMG0979]

O.S. Engine FS-200S-P Surpass Four-Stroke Ringed Engine
Price:
CAD$758.54
Brand:
O.S. Engine
Model:
OSMG0979
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Compact power and compatibility from the O.S. FS-200S-P

The O.S. FS-200S-P Surpass brings refined four-stroke engineering to a compact package that fits the same footprint as the FS-120S-P while producing noticeably more torque. Its design targets pilots who want strong, dependable output without complex upkeep.

Real world performance for sport and scale planes

This engine is tuned to give sport flyers improved acceleration and responsiveness, while scale builders will value the deep, authentic exhaust note and steady idle. The supplied F-6010 muffler rotates 360 degrees so you can optimise fit and sound for your airframe.

Installation-friendly features and reliable fuel delivery

Practical details like a reversible carburetor and slimmer camshaft housing simplify mounting. The built-in PD-08 diaphragm pump maintains consistent fuel flow in varied attitudes, and the enlarged carb intake yields a power increase compared to the FS-120S-P.

Specifications

  • Displacement: 1.98 cu in (32.4 cc)
  • Bore: 1.50 in (38.0 mm)
  • Stroke: 1.13 in (28.6 mm)
  • Practical RPM: 1,800 - 10,000
  • Output: 3.0 hp @ 9,000 rpm
  • Weight (w/o Muffler): 30.9 oz (876 g)
  • Weight (w/Muffler): 35 oz (993 g)
  • Includes: PD-08 diaphragm pump, 80R carburetor, F-6010 muffler & type "F" glow plug

For flyers seeking a straightforward swap into existing mounts with a clear power upgrade, the FS-200S-P is a sensible choice thanks to its torque, rotating muffler and pump-fed fuel system.

What prop sizes work well with the FS-200S-P?

Typical propeller choices depend on the airframe, but many sport and scale models perform well with mid to large diameter props that match the engine's 1,800 - 10,000 rpm range. Check your model's recommended thrust and balance for best results.

How do I set up the PD-08 fuel pump?

Mount the PD-08 according to the manual so the inlet and outlet lines are secure and free of kinks. The pump is designed for consistent flow in varied attitudes, but ensure fuel lines are short and well routed to avoid air pockets.

Is additional maintenance required compared to smaller four-strokes?

Routine maintenance is standard: check mounting, clean the air intake, inspect the muffler and verify fuel lines. The FS-200S-P is designed for low maintenance, but regular inspection will extend service life.

Can the muffler orientation be changed after installation?

Yes, the F-6010 muffler is rotatable so you can adjust its position for clearance and to tune the exhaust direction without removing the entire assembly.

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