i have got a derbi atlantis and i am having troubles! it just wont start.i cant even kick start it as that keeps failing to start the bike. i have checked the spark plug and charged up my battery but it is still failing to start what may this be? it sometimes does start but after walking or running with it for at least 300 yards. what ,ay this be? if anybody knows please let me know. try and email me razaj7@hotmail.com cheers