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

O.S. Engine FS-200S-P Surpass Four-Stroke Ringed Engine
Price:
AUD$781.91
Brand:
O.S. Engine
Model:
OSMG0979
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O.S. FS-200S-P Surpass engineered for increased torque

The FS-200S-P Surpass is a compact four-stroke that slots into the same space as older FS models yet steps up torque and midrange response. It targets pilots who need a dependable, easy-to-install engine with authentic four-stroke character.

Improved midrange and authentic sound

With tuning aimed at usable power across the rev range, the engine gives sport pilots responsive performance and scale pilots a convincing exhaust note. The F-6010 muffler offers 360 degree rotation so you can position it for the best fit and tone.

Practical installation features and fuel reliability

Handy design touches like a reversible carburetor and reduced cam housing width make cowling work simpler. The PD-08 diaphragm pump ensures constant fuel supply in varied attitudes, and a larger carb intake helps the engine achieve higher output than 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

Choose the FS-200S-P when you want a direct-fit upgrade that improves torque and produces a satisfying four-stroke tone without complicating installation.

Follow a controlled break-in with progressively longer runs at moderate throttle, checking temperature and head glow, and keep prop choices conservative during initial hours to bed in rings and bearings.
When the carb orientation is changed, recheck throttle linkage, idle and needle settings. Small adjustments to high and low needles may be needed for optimal mixture after rotation.
Standard hard mounts that match the FS-120S-P footprint work fine. Some pilots use rubber isolators for vibration damping, but ensure alignment and prop clearance remain correct.
Yes, the PD-08 pump supports fuel delivery in varied attitudes, making the FS-200S-P suitable for aerobatic flight when mounted and fuel lines are correctly routed.

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