Kohler 675 mower engine. Loosing fuel. I mowed a small patch of lawn and the next day it ran our fuel just after starting. I filled up the tank when done and the next day fuel level was down. Hose leak at the carb. Fixed that. Still leaking fuel. I'm thinking bad float valve and about oil dilution with fuel. Removed carb with fuel line still attached. Not seeing any fuel leaking into the venturi area.