O.S. Engines 155FS-a 4-Stroke

摘要

The O.S.~R Engines 155FS-a 4-stroke engine is designed to give more power from a smaller package. The 155FS-a produces 2.6 horsepower, about the same as many 200-size power plants, from a package that's about the same size and weight as most 120-size engines. Fewer modifications and easier retrofits leave you with more time to enjoy the added performance. And since the 155FS-a is a pumped 4-stroke, you'll be able to enjoy improved performance consistently, regardless of model attitude, fuel levels or tank.