The kids off the hook. No way could flipping the prop backwards cause problems.

Now why won't it start. If, the glow plug is glowing, and the fuel is sorta OK, it should fire up. Seeing as it has sat a while, do this. Remove the high speed needle and with some fuel in the tank, pull the pressure line from the muffler and gently blow into it. Fuel should flow out the hole where the needle valve goes. OKsofar? I not, you may have the vent and clunk lines switched. The clunk may be gummed up, there may be a broken line to or in the tank. Anyway, you have a fuel supply problem that needs fixing.

If you got fuel out of the hole, now replace the needle and make the manual' adjustment for the starting point.. Blow in the line again and see if some fuel builds in the carb. OK, then it is going to start. Watch that you don't flood it , remove the glow plug and chank the engine over a few times to blow out any buildup.Then replace the plug and give it another start. Truthfully, get an electric starter and put the chicken stick away until you have the engine running really well and broke in. Not sense driving yourself nuts trying to start a balky engine when a couple seconds on the electric will get it running.

Now back to the fuel. While it should fire even if the fuel isn't all tha great, that doesn't mean that it is going to run well with bad fuel, it won't. If you think the fuel may be bad, borrow a tank of know good fuel from a buddy and see how it goes.

Bottom line, if you get fuel to the carb, and your glow plug is lighting, the engine will try to run.

Don.