John Deere L100 series 48 inch deck. Was hard to start, but finally kicked in. Went about 30 feet then quit (as if no fuel). Fuel level okay, battery charged. Changed fuel filter, seems to be moving fuel to carb. Does not seem to be firing however. Any thoughts?. Thanks

Check fire at spark plug , or remove air filter , cover and filter , put a little gas in the carb throat see if it starts and dies . If so its firing check fuel solenoid on bottom of carb ,
Luck