Re: Problems with new kit...
No, you can't put the tensioner on the top. If you need to change you chain alignment, try flipping the rear sprocket over. Most of them have the teeth offset just a little, and changing the direction of the offset might give you enough clearance.
The kill switch can go to the blue and black wires to short the CDI, or to the white wire and ground to short the mag. You'll have better luck with the former.