Kohler KT735 keeps flooding

[Craftsman Garage]

I've got a Kohler KT735 V-Twin engine here, and it just keeps flooding. The first and only planned repair was to replace the head gasket, it had blown and I always wondered what that hissing sound was when it was cranking before I found it. It was blowing to the outside, if that matters. Anyway, after I replaced that and assembled everything, the electric fuel pump system kept flooding the carburetor. I sorta expected that, since it is electric instead of vacuum but it had worked for months before this repair. I converted it back to a vacuum system, just to eliminate that as a possible issue, and it is STILL flooding. I will crank it and crank it and no starting, but only when I turn the key to off will it flood the carburetor and intake with fuel. The fuel pump works, and it floods like this with both a aftermarket as well as a OEM carb. The fuel solenoid DOES work and you can hear it click with the key at RUN. Any ideas why this could be happening? This is on a 2014 Craftsman T7400, by the way. Thanks guys.

 

[Auto Doc's]

You need a new carburetor needle and use only the vacuum pulse pump. An electric pump makes well over 5 PSI pressure which is way too much for the small fuel needle to handle for very long.