Just unloaded the bike from "trying" to ride yesterday...lots of hot starting issues still. I wanted to see if it would fire up from cold like it usually does, it started 2nd kick without choke but died a few seconds later because I wasn't giving it any gas. I tried again and it started for a second with the throttle slightly opened, and it died pretty quick. Went to kick it again(battery is low and I knew the starter wouldn't work), now when I kick it, you can hear it turning the starter motor, but doesn't feel like you're getting the engine going. Really weird. So as I try to kick, all it's doing is turning the starter motor and it's hard to kick over. Anyone hear of this before? Know what I can check first? It has a Rekluse Z-Start, could it be something to do with that? Yesterday was a disaster for hot starting. The last ride I went on was really hot and humid, I adjusted the fuel screw until it was pretty much all the way in on a 42 pilot and it ran great all day. Started in 1-2 kicks almost every time I stopped or when it died on me around sharp turns in the woods. I figured it needed a leaner pilot so I put a 40 in it, got it warmed up in my back yard two days ago and adjusted the fuel screw to about 3/4 out(it started hesitating past that) and it seemed fine, easy to start, good power. Yesterday it was much cooler though. As soon as it got hot, it was impossible to start. I spent half an hour trying to get it to start. Tried richening the fuel screw, hot start, choke, little throttle, lot of throttle. I'm bringing to past TDC on compression and kicking through, but no luck. I got it running after that 30 min break on a hill and was able to get back closer to my van and it died again. Luckily it was near the van, I changed the pilot back to the 42 and turned the screw out about a full turn and it started up. Although it had time to cool down. Ran it around the pit area adjusted the screw some more until it sounded like it was in the sweet spot, killed it, it started right up, but it was on a few seconds after I killed it. Did a really short loop around the first bit of the trail, came back to the van to get all my gear on, nothing. Couldn't get it going to save my life. Checked the spark and it's pretty weak looking, didn't have a new plug with me. The color looks quite rich too, not wet and covered in soot, but getting that way. When it gets hot and starts acting like this, the top end gets kinda noisy. Like the valves are loose. I checked them two rides ago and they were barely out of spec, really only one valve on each side(in and ex) was slightly off. I put them in the middle of the range and it ran fine for the last ride, but that was when it was humid and the fuel screw was all the way in. Please help! I'm getting fed up with this thing. It's the newest bike I own, and it runs the worst out of everything I've ridden. When it's right, like the last time, I love it.