I removed the carb from my 24hp honda horizontal shaft engine for cleaning. The sensor in the front of the carb has to be screwed out of the carb before the carb can be removed. The wire running from the sensor becomes twisted when the sensor is taken out of the carb. There is a spring under the sensor and ( there may have been some type ball) and it came out when the sensor was removed. I recovered the spring, but if there was anything else under the spring obviously it fell down into the shrouds of the engine into the tiny hard to find areas. Does anyone know what was behind this spring and what this sensor controls. I tried putting the spring and sensor back in the carb and now the engine will not do anything. It leads me to believe there was something behind this spring OR when removing the sensor the wire was broken ans no signal is being transferred.