Try to find out if the "mikey" mixed his own fuel and got too much oil in the mix. That'll choke up a carb PDQ. I had a moron do that to me twice with a little 4hp merc outboard.
This is my guess. The easiest way to screw up any borrowed two stroke has got to be improper fuel mixture. If you're lucky, you can drian the gas and fill it up with the correct mixture. Hopefully, with a few pulls, you can get her started up again.
