I'm having trouble with my manco talon 260 atv
 

When I first got it it wouldn't crank because it wasn't getting fire to the spark plug so I messed around with the wires on the coil and eventually got it started so then I took it to deer camp with me and it wouldn't idle so I took the carb off and cleaned it and it started running good so then I was going to take it for a test ride and made it about 100 feet and it went dead and hasn't Crunk back since because it's not getting fire again does anyone know if it may be the coil going bad or if there may be wires loose that's going to the coil? Thanks wpeels