I have an Atomik Rogue 250 quad, I replace the Cdi, the magneto is putting 38v ac into the cdi whilst cranking but no voltage coming out to the coils. Disconnected the black/white wire to the cdi, still no spark. Suspecting magneto, it has 190 ohms red/black to earth. I tried the cdi on another quad it was ok, that quads magneto was putting out 60v ac. Any ideas anybody?