piaggio typhoon 50 2stroke not starting?

i just bought a typhon 50cc and ran it for a couple of days. took the battery off to charge it, replaced it and now the bike won't start. Petrol is full. All was working fine before but now the headlight doesn't work and the bike doesn't go. Just wondered if there was any fuses other than the one by the battery, or if it was something mechanical?? HELP!!

Thanks

Paul
November 2010