So the TS250 has sat for years, getting started and ran very briefly every couple years. It has sat for 5 or 6 years with basically no use, until today. So I added fresh gas, it starts quickly, and I drive it off.. around town a bit. It didn't run good in town.. low on power, sputtered under full throttle. I took it out on a gravel road out of town, power picked up to normal now that it had run 10 minutes or so. I was buzzing down the road at 40 mph and all of a sudden it starts to slow down pretty quick, giving it throttle it still slows down and quits. I thought it may have overheated, although unlikely, so I let it sit for 5 minutes and try starting it. I got it to sputter for a second twice. This was with the choke pulled.. even though it would be hot enough to start without choke. Didn't sputter at all without choke. So I towed it back home and troubleshot it. The sparkplug was somewhere between wet and dry.. dampish. Tons of fuel going to the carburetor, passing through petcock and filter fine. With a screwdriver grounding the spark plug lead, I saw and heard spark. Air filter had no rats nest in it, free flowing air. I dumped a pop bottle lid full of gas into the cylinder on the off chance it didn't get fuel through the carburetor.. would not start. I smelled fuel while kicking, but did not start. I took the carburetor off and apart. Idle jet was 90% plugged, so I cleaned it out and put it back in. Main jet was fine. Put carburetor back on and tried to start, nothing. Let it sit for a couple hours and tried to start, but no start. WTF! It has fuel, spark, air, and at least some compression! It was running awesome before it suddenly died! I doubt the engine would destroy itself that quickly. There was no weird noise when it quit, and compression seems the same now.. One thing that's been haunting me a bit is the transmission oil level. I have no idea how much it is supposed to have, never have known. I have always just used a coat hanger or stiff wire to gauge how much oil is in there. It wasn't as full as I would have liked, but was acceptable I thought.. maybe 2" of oil. So... does this transmission oil also lubricate the bottom end of the engine? I do not think so, but I'm not sure. Usually 2 strokes use the oil/gas mix in the crankcase before burning it don't they? I originally wrote the above yesterday, I just could not post until now. So today I did some checking too, and I have a couple things to add that I forgot before. The spark plug throws a spark when grounded to the head. I also cleaned the spark plug up a bit, using fine sandpaper to clean up the gap. I also removed the spark plug and kicked it over around 50 times to get rid of any excess fuel. Then I had my nephew push me down a hill as I popped it in gear. Once I got it to run for 10 seconds, very weakly, until petering out. I then suspected the fuel so I drained the tank and the fuel bowl, and put in different gas. Tried the pushing down a hill again, same thing but I couldn't get it to run for more than a second. It did backfire pretty nastily a few times. Seems like it might be getting way too much fuel...? So what can I check to get this running? I'd really love to have this running tomorrow!