I have a Tecumseh Enduro 5.5. HP OHH55 (69026C) on a Cub Cadet MTD tiller. Had sat idle for some time and was difficult to start so took carb off for cleaning. Was surprised to see a plastic flap that was attached to one of the 2 screws at the intake port. The flap looked to be factory built but is badly distorted. The carb is one of the non adjustable units with a priming bulb and in addition to the fuel input, it also has a rubber hose right below and in back of the fuel input. This small hose runs to the OHV cover.
What would be the purpose of such a flap? Looks to me that carb vacuum would pull it fully closed and stop almost all air inflow to the engine. As said, the flap was distorted but may have been held at about a 45 degree angle out from the opening. Unit obviously had rum for some years with this in place. Should it be replace and if so with what. I don't see it in the part lists I have looked at.
What would be the purpose of such a flap? Looks to me that carb vacuum would pull it fully closed and stop almost all air inflow to the engine. As said, the flap was distorted but may have been held at about a 45 degree angle out from the opening. Unit obviously had rum for some years with this in place. Should it be replace and if so with what. I don't see it in the part lists I have looked at.
