Hello! Last weekend I had the problem that my KTM (620’er LC4, Bj.95) under load, in a warm condition, died off as if the tank was empty. Ignition spark was gone. Had nevertheless adhoc seat and tank unscrewed and checked all connectors. Afterwards the ignition spark was back again, but probably due to the fact that the CDI unit had cooled down. It jumped on anyway again, but only ran for about 2km before it got off in the same way. Yesterday I checked the ignition spark again at home. It is there, but weak. This also shows the fact that it starts shortly and dies again after a few turns. Am I right with my guess that the CDI unit is defective? Replacement of the SEM 14-05 is used very rare and also expensive. New even more expensive….with such an old planer almost a value doubling 😉 Have already been googled a lot whether you can change other, more cost-effective units I have found an SEM 14-07 of a 2-Taker for this purpose. Does 2-Tacter CDI’s also work on 4-Tacters? The ignition coil provides the voltage and with the pick-up signal that comes from the ignition coil, I generate the ignition voltage. Can someone help me further, or did already have the same problem and a cost-effective solution? Thanks in advance!!!