Small Engines (Lawn Mowers, etc.): 5 HP Tecumseh Sowblower engine, air leak, flow path


Question
When I prime the engine, gas runs out all around and from in the carb.  The flow of gas stops when I remove the priming tube from the carb.  The engine runs, even when dumping gas.  What's wrong?

Answer
Hi Ken,

You will need to trace the primer flow path and look for a check valve or an air leak.  If I remember, the primer pushes air into the carb, which draws fuel into the throat.  I'm not familiar with your exact carb model so I can't pinpoint where to look.  If that checks out but no difference, then I would look at the float and its' needle and seat for a problem but that would leak all the time if not correct.

Let me know how you make out.
Michael