hate to be the harbinger of bad news, Tapio, but it's more than likely not the pickup that is bad.

First off, all plugging the ignition into and out of circuit does is charge the capacitors and then trigger them to discharge when the voltage is removed. . instant spark. THis means that the output side of the ignition AMPLIFIER circuit is good. Nothing more.

On the CH, there is a synchro spark module between the ignition pickup and the ignition amplifier. CH ignitions can be ordered with no Synchrospark, meaning fixed timing. All the synchrospark does is reatrd timing in relation to RPM. The Synchrosaprk modules CAN go bad, as evidenced that the spark is made when voltage is applied and removed.

The actual crank pickup is merely a magnetically activated transistor that uses a changing magnetic field to affect its conductivity. Magnet swings past, transistor either turns on or shuts off. . simple as that. IF this pickup is going bad, you can spin the motor over at high speed with a drill and get a spark sometimes. IF the wires have a bad spot, and are not making contact or there is a bad solder joint on the pickup, using a heavy handed "flexing" of these wires can sometimes cause contact, which will result in a spark whenever the contact is made and then broken. This is the most likely failure point for this ignition on the BME.

One more thing, you can bypass the Synchrospark module by shorting like-colored wires on the input and output sides of the module, allowing the pickup to give a signal directly to the ignition amplifier. If you do this, and it fires when spun over, you have a bad synchrospark module. there may be a warranty issue with this, though. However, three shorting wires with alligator clips can accomplish this with little evidence of tampering

NOW. .I just had a CH ignition fail, for the SECOND time, due to a bad synchrospark module, OR the associated amplifier circuitson the inputs side of the ignition. If you have a bad transistor in the main amplifier, it can shut down the "normal" operation of the ignition but you will still get the connected/disconnected spark from the coils. It all traces back to where the failure is. I sent the ignition in, the synchrospark module was replaced I put it in the plane for 5 great flights, then parked the plane for 3 days. . Came out and tried to fire the engine and NOTHING. I have a spare crank pickup, and it did not help by changing it. Power to the ignition was 5.4 vdc, and it would spark during connect-disconnect testing.

Your best bet is to call CH ignitions. their number is 307 857 6897. They are on the web at www.ch-ignitions.com .

I raised a bit of cane when I called them about the second failure, and they sent me a new ignition as I am sending mine back in.

Best of luck getting your BME running again.