Took solenoid stop off laid to side, then turned the key on. Solenoid stop plunger didn't move. Left solenoid stop off started tractor and fired right up. Went to parts store purchased new solenoid stop. Plugged wire into new solenoid. Turned key on and new solenoid plunger didn't move. Unplugged new solenoid. Took hacksaw and cut off old solenoid plunger. Put old solenoid back on tractor. Turned key and tractor fired up and running. Killed engine with manual lever below solenoid. Turned key on again tractor fired right up and did about 1.5 hours of work with tractor worked great. Parked tractor, got out and pushed manual shutoff below solenoid. Let tractor set a few minutes and tried to start again. Wouldn't start just made trickling noises. Suggestions? Thanks