Seeking advice on a frustrating carb rebuild on my 400. I rebuilt the ih carb on my 400 after the tractor repeatedly failed to start, with the carb flooding each time. However, it seems I have not corrected the problem because the carb continues to flood and the tractor will not start. I crank it a few times and it drips from the drip hole at the base of the carb. I have inspected the float valve and it seems to be functional (with the gas on and the bottom half of the carb removed, I manually lift the float up to level and the float valve shuts off the gas flow). I also inspected the float level and set it to the 1 5/16" that the service manual recommends. The only explanation I can think of is that the float is snagging inside the carb, thus not allowing it to rise in the bowl. Is there anything else that could explain the continued flooding? Any advice is welcome.
-Pete Markel
-Pete Markel