So I broke the bike already. It proved to be rock solid reliable for the first 3.5 days of ownership putting some miles on it on dirt roads and at work.
On Sunday I got good 4.5-5 hours in the mud, sand and trails in Mt. Morris MI. It ran strong and was awesome. I stopped by work and washed it with a electric power washer (
jwaller sees where this is going

) and then it wouldn't start afterward. I air gunned it thoroughly and fiddled with it for a while and got it started. It ran strong and I screwed around in the parking lot for a while before loading it up and bringing it home. Yesterday I was going to go for a rip and it would crank but not fire.
Symptoms:
Won't start.
Will crank and will occasionally pop and sputter.
The header pipe heats up so there's some kind of combustion going on.
Things I've tried:
I changed the spark plug and confirmed that it's sparking. The old one looked pretty rough. No change.
Inspected for loose hoses or chaffed wires. There's two disconnected hoses that appear to be vent hoses. There's no clamp marks and they aren't bulged or flared on the end like they were on a fitting.
I checked the kill switch for continuity and function. No problem there.
I drained the gas tank and the carb. I didn't find any obvious problem.
I was going to do a compression test but my tester is slightly too wide to fit down the spark plug recess.
I read that some people have better luck kick starting it when they couldn't get it running with the electric starter. I was able to get it running with the kicker but it wouldn't hold an idle. I went for a ride and it still feels strong and responsive. I shut it off a few times and tried to restart it immediately and it was hard to start each time.
I ordered a valve cover gasket and case plug o-ring earlier so I can check the valve clearance.
Anyone have any input?