Hello, have a Derbi GP1 125, 4-stroke year 2006, all original. The problem is this: I bought it, without battery and the turn signals didn’t go when battery was set in. I then dismantled the cover and first changed the rectifier, because for example the 50’s model the turn signal relay is integrated in the rectifier. New, charged battery is installed. If I turn on the scooter, the light, driving light, brake light, only the turn signal is not switched. I saw the wire harness as far as I could, I found a spot in front of the rectifier where someone had soldered the cable, I cut it apart and soldered it cleanly. Otherwise I couldn’t find anything. I just fell to see if a disturbed spark plug is installed, that’s what I’ll do during the day, manyleic Ht someone knows the model and the problem? Unfortunately, find no one who drives the model himself. I don’t know how to measure this error, if the turn signals are dead then no current arrives at the turn signals, I measured that, but is actually also logical. I changed the switches myself, I had them twice here, it’s not because of them. Thanks for ideas and greetings.