Kohler engines power a ... such as on the RH Series 6.5 hp. Oil leaks were extremely common, as we ... and Troy-Bilt lawn mowers and lawn tractors using Kohler Courage twin-cylinder engines.

Kohler engines power a wide range of applications, ... such as on the RH Series 6.5 hp. Oil leaks were extremely common, ... special criticism is aimed at Kohler's single-cylinder Courage engines.