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OS FS .91 Surpass II with Pump

Pump feature adds responsiveness to the FS-91 Surpass

  • New regulating style pump, normally only found in 1.20 class engines, delivers better response and reliability
  • Rear ball bearing is rubber-sealed on both sides and greased internally to help inhibit bearing corrosion
  • The crankshaft, cam shaft and piston ring are all plated to further resist corrosion
  • Features a reversible carb which allows the needle valve to face either the left or right side of the engine
  • Black anodized rocker cover
  • A large-volume muffler offers better noise reduction for milder sound
Displacement 0.912 (14.95 cc)
Bore 1.091 in (27.7 mm)
Stroke 0.976 in (24.8 mm)
RPM 2000 - 12000


1.6 BHP @ 11000 RPM
Weight 23.9 oz (678 g) (with manifold and muffler)
22.2 oz (630 g) (without manifold and muffler)
Recommended Props 13.5x8, 14x7, 15x6, 16x6
Price R Not Available