Ihave recently had two DA50 ignition units malfuntion. Without warning thay have stopped sparking or spark intermittently. I have removed the plug and checked this out by viewing the spark in a darkened workshop. Both units appear undamaged. One was recovered from a minor crash the other has never had an accident. The engine runs fine with a friends unit on it so it is definately the ignition module.
Anybody any idea what the probelm may be? Also can thay be repaired because at £150 a pop its getting expensive!