216 was running perfectly, then all of a sudden it quit. Restarted, but needed chock to stay running...well, idling fast. Throttle is not smooth, but rather touchy/jumpy. Any suggestions on where to start troubleshooting. My thoughts:
1. Fuel pump.
2. Trash in carb idle circuit.
I don't think carb is flooding as chock is required to keep it running. Still starts easily, so probably not ignition.
