In Reply to: 9600 motor hunting badly posted by Grunt on November 15, 2002 at 20:02:37:

We had that problem on a couple 9600's and ended up pulling the plunger out of the shut-off solenoid located on the side of the fuel pump. It was sticking halfway closed and was trying to shut the fuel off. When you turn the key off, the engine shuts off even without this solenoid so we never even replaced it.