[Mule bender]

The humming noise is likely the fuel pump energizing. Have you tried testing for spark using a good spark tester? Don't spray starting fluid in at the throttle body, it can wash . It can wash away oil from the rings. If you're smelling gas it ain't gonna start from ether anyway. Check wire loom and plug connections and also ignition coil wire connections around the flywheel area. If all that fails and it is still under warranty then take it to the dealer. I have a 2010 4010SE and I ordered a service manual in CD format off EBay before my warranty ran out mainly for disassembly instructions and electrical diagrams. This CD has EVERYTHING : diagnostics, the whole bit. Good luck with your endeavor.

 

[Mule bender]

The humming noise is likely the fuel pump energizing. Have you tried testing for spark using a good spark tester? Don't spray starting fluid in at the throttle body, it can wash . It can wash away oil from the rings. If you're smelling gas it ain't gonna start from ether anyway. Check wire loom and plug connections and also ignition coil wire connections around the flywheel area. If all that fails and it is still under warranty then take it to the dealer. I have a 2010 4010SE and I ordered a service manual in CD format off EBay before my warranty ran out mainly for disassembly instructions and electrical diagrams. This CD has EVERYTHING : diagnostics, the whole bit. Good luck with your endeavor.

DON'T FORGET FUSES AND FUELPUMP CIRCUIT BREAKER!

 

[Mule bender]

You were right about the humming sound. Today I lifted the front seat so I could track down the humming sound. I put my hand down over the fuel pump area and turned on the ignition. Sure enough, that was where the humming sound was coming from, but then I felt something wet on my fingers. Turns out that the fuel line had become disconnected, and gas was pumping out of the connector. The connector came loose when I wiggled it.
I guess that explains the gasoline odor. And I guess the reason I did not see gasoline spilling on the ground was that some sort of safety interlock had been turning off the fuel pump after a few seconds. For this 81 year old mechanical engineer, this is a little embarrassing. But it could have been worse; I could have loaded it up, taken it 50 miles to the dealer, waited for two or three weeks, and then have to deal with a smart-ass mechanic laughing at me and probably telling me this was not covered under the warranty. But I do contend that that is a pretty poorly designed connector. Seems to me that an old fashioned hose clamp would have been a better design.
I did order a service manual, so maybe I'll spend some cold winter nights getting a little more familiar with the mule.
Thanks,
Charlie
View attachment 76977

That's great news!