OS Engines FSa-72 II Four Stroke Aircraft Engine w/ F-5030 Silencer

OS Engines FSa-72 II Four Stroke Aircraft Engine w/ F-5030 Silencer. Features The adjustable F5030 muffler can be rotated 360° 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°