Yamaha Grizzly 660 without Spark Spark plug

First, sorry for my bad English with the help of the translator.

It is a atv yamaha grizzly 660 2004 who has long standing

He had removed the starter relay and the 4 cables to the cut connector.
I started by putting direct cable clamps and moves boot boot without problem.

He made as if to start almost staying idle but fails.
The spark was very weak even with new spark plug and no spark now.
looking polímetro arrive only about 0.2 volts to the input coil.

I try to connect the starter relay connecting and cleaning up the cables were cut,
when you connect the battery starts to smoke by cdi unit,
from between the central connector and 4-pin side,

If I try with another Cdi may also take smoke and spoiling?
or maybe mine is wrong and that everything fails?

if localizase a scheme to see if there are any problems in the installation or someone could tell me would appreciate

thanks in advance