Ok thanks.. How about the stator and cdi..?? I read that the cdi is 86 only, different part number to the 87 even! and the stator fits 86 only, 87-89 different again.. is this right?? My 86 stator is dysfunctional so I need to replace that or get it rewound, living in the UK there are very few 500's on the island so finding a like for like part I say would be near on impossible. There are plenty of 250's though so really just need to know what years of the 250's I could use ignition wise???