John deere riding mower won't start

I have a JD GT 225 about 4 years old. It had been working and then when I came back to it a week later it would not start. I replaced the fuel filter and I am getting gas past it. If I pump the throttle to long I can smell gas. I removed the spark plug and it was slightly wet. Grounding the spark...

My mower starts once in awhile but when it doesn't the battery light comes on and nothing cranks... I get nothing. If I put a battery charger on it, then I get NOTHING at all, not even a battery light, and then it takes about 20 minutes to get the battery light back after removing the charger......

My John Deere riding lawn mower LA100 will not start? I have replaced the starter, solenoid, relay switch, ignition switch, placed a new battery on and all it does is click in the solenoid.

1) I just purchased a John Deere 110 riding mower... when trying to start it the engine turns but won't catch... I've read the manual and pretty certain I've got everything set properly.. What am I missing! 2) Can you jump start if battery dies?

Background: Operated mower for a couple hours and washed it after it had cooled. Then I started unit and moved into sun to dry. Symptom: After a couple hours of drying I tried to start the unit. The starter engaged momentarily and then the unit shut down - now it will not engage. Voltage is...