Question about Poulan 42-Inch Steel Deck 17.5 HP Briggs & Stratton I/C Engine With 6 Speed
I have pulled th OHValves and the head gasket looks good. The solenoid retracts when the ignition is switched. The valves, piston and valves look normal. The engine runs great after I pull the spark plug and blow the gas out of the cylinder and have changed the oil. The gas seems to run into the cylinder after it has sit 2-3 days. It don't seem to fill while running. It doesn't burn oil. The engine is 2 years old and never been mistreated.
The problem is the float needle and seat are leaking. It is not shutting off the gas when the bowl is full. The bowl fills up, then runs down the intake through the intake valve into cylinder, past the rings into the crankcase. Fairly common problem. Just replacing the rubber tipped needle probably will not stop the leak. The pressed-in brass seat needs to be pulled out and a new one pressed in also. Possibly there is some trash or rust in the carb that has gotten between the needle and seat, but in my experience, it usually takes replacing both to fix.
Posted on Jun 25, 2009
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Posted on Jan 02, 2017
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