Cazador gy6

[Greaser]

I have a cazador utv it has a gy6 170 cc engine.
It cranks over fine buy has no spark at the plug.
I have changed the cdi, the coil, ignition switch and stator.
Still no spark.
I have checked the wiring from the switch to the rear and all seems good. Is there a safety switch that can kill the spark?
On the brake pedal their are two switches both have the same color code. One is disconnected I figure the other is brake lite.
When I went to use it a couple of weeks ago it started fine and as I drove it it started cutting in and out. I stopped it and it died and hasn't started since.
Any ideas? Where I live know one works on these.

Thanks greaser

[JerryHawk250]

I have the same UTV. Any bad safety switches will not let it crank and will not kill spark. Try unpinning the black and white kill wire (may be different color) to rule out a bad CDI. Even though you changed it it still might be bad. You can also check if you have power going to the CDI while cranking the engine. Make sure yu have good grounds where needed. See picture below for wire diagram.