Hi 7strider, take out the glo plug and put your buggy back on the starter box and give it a push, see if there is fuel spitting out the top of the cylinder head, if so you know that fuel is circulating.
If no fuel is spitting out the top check all your fuel lines(maybe pinched some were), als check that the fuel tank cap closes tight and check all fuel line connections for air leaks
check your engine also for air leaks around the carb, back plate(where the pull starter used to be) and your front man bearing.
check that your glow plug igniter is fully charged.
Check the glow plug that it gives a nice orange or red colour. also check the state of the glow plug when you take it out the engine, is it wet after trying to start your engine or is it dry????
what engiine are you using??? if you can give me that info I'll see around for the factory set up, could be that the low speed and high speed needles are out of wack. See if the rubbers around the needles are still O.K, jst unscreww the needles and have a quick look.
hope this help a bit.
Get back to us soon and we wil try to help you out.
Greets from Lez