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Description

O. S. Leads the way in advanced 4-stroke engine technology, and you â’ll see for yourself when you mount the fsa-72ii in your model! sport flyers will enjoy greater performance, while scale pilots will experience more realistic flight. Plus, everyone will benefit from the fsa-72ii â’s deep, rich sound.

  • the adjustable f5030 muffler can be rotated 360 â° and moved in or out for a perfect fit. Rich, deep sound is an added benefit.
  • features the same mounting bolt pattern as the fl70 and the fs70 ultimate for easy replacement.
  • a reversible carb and narrower camshaft housing simplify installation.
  • tighter tolerances and updated engineering reduce maintenance and ease setup.
  • delivers more performance power to sport pilots and more realistic flight to scale pilots.
  • blowby oil exits through the breather nipple on back plate for more stable operation
  • black rocker covers
  • 61n aluminum body carburetor with rotary throttle lever, high speed needle valve, and low speed mixture control, extended intake tube eliminates reverse flow tendency of air/fuel mixture, carb is reversible 180 â°

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Specifications
SKU OSM34721
Barcode # 4531028024311
Brand OS AIR ENG
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