sounds like the same problem I had when I got the scoot out of storage. I did the same thing you did with taking the carb off and just clearing out the jets. It took a long time of kicking before it started, seriously like a straight minute of constant kicking to get it to start. I would try changing the spark plug and just keep trying to kick start it. I would have to kick it like 10 times in a row before it would start, but now I replaced my battery so I don't have to kick start it any more (at least for a while anyway).
Good luck.