Ushering in a new era in O.S. 4-stroke technology: the FS56-a. It’s the first in the alpha series, with the latest advancements for boosting your plane’s performance.Mounts with no-mod ease in the same space as the 52FS. In addition to less noise, the muffler features a multi-positional manifold with a rubber that helps prevent oil leakage. A newly designed lubrication system eliminates the need for crankcase ventilation. The 40NA carburetor is equipped with a venturi that reduces the chance of fuel leaking out onto the cowl, while also creating more positive air/fuel flow. SKU: 34300 Categories: Airplane Miscellaneous, Airplane Parts & Accessories, Engines
