Hi there just bought a gpx 600 4th one I´ve owned,it would start and run sweet for at least 2/3 minutes when I turn it off its 50/50 if it will start again,this happened at least 6 times but it has given up completely, the strange thing is, the neutral light and oil light are working as they should but when I press the start button nothing at all happens,also all lights, brake lights indicators will not work, am I missing a simple wire loose here or is it a common fault all or any help much appreciated