Morning folks! I have a John Deere 445 that will not seem to crank! I have had it at the JD dealership and when I call them they say hey NP it cranked for us!, and I go by it runs, no charge I bring it home, mow for 2 weks and bam will not crank! Heres what has happened so far. I keep the tractor stored in an enclosed Garage w/ concrete floor, I go in key in ignition, advance the gas a little, push brake, turn key and the tractor just turns over until the battery gives out. It will sound like a couple of times it is going to start then zip, nothing, I took off the air cleaner and it has backfired a few times through the carb, fuel inj. works great, provides plenty of fuel. I have changed the battery, charged the battery, replaced the wire for the deadmans switch in the seat. Everytime I take it to the JD dealer, he keeps it for about 2 days then calls me back and says hey it cranks no problem. One time they removed the plugs and the mechanic said gas just poured out of the cylinder when they turned it over. The plugs look "ok".... I am at a loss of "What to do next?" All help appreciated!:banghead3