Help with Chinese quad 110cc loncin engine

Hi guys,I am new to this site and would like to hello to every one,I have recently been given two of these Chinese 110cc quads,I have got to a point with one where I have completely removed all the old wiring and bought a new loom (5pin cdi) with all the main bits with it start or button,cdi,stator etc,the quad turns over but does not spark??,I have on the new loom a black/red wire going to the cdi but the stator I have only has 2yellow wires,a blue/white wire and a green wire.there is also another 3wires coming from a switch/sensor with a green wire,a black wire and a yellow with a white stripe through it.I believe this black/red wire is what powers the cdi but my stator does not have this colour on it.any advise would be much appreciated. Thanks guys.