Water cooled eton 150cc has 4 cdi box's
 

Just bought a water cooled eton Yukon 150cc why does it have 4 cdi box's on it. Has 1 6wire two plug with green wire in corner of the box has 2 5wire standard chinese cdi box's and one 5wire little black box that has the wires coming out of the bottom

I don't know the 150, but it will have a CDI, though not the normal Chinese one, as Etons tend to have earth to run kill switches. It will have a voltage regulator too. Other "black boxes" may include electric gearchange, remote kill switch, etc. Alpha Sports have on-line parts lists for most pre 2012 Etons, so a search of the electrical parts list may give some clues.

Yes it has the standard eton cdi beside the battery but there are two more standard chinese cdi boxes hooked up to it under the frount finder. And 1 that looked like the old 2stroke style and regulator and a few box switches just trying too figure out why it has so many cdi and if there supposed to be on it it doesn't look like thay were put on 2nd hand but I don't know for sure

But I will look at alpha sport thanks