After doing our homework, we managed to find out where those two pins marked as " 1 " and " RUP " correspond. It is the negative side of the primary coil. One of the wires connects that negative side to the electronic module, so that the interruption can take place, and the other wire is the rpm signal to the speedometer on the dash. The transistorised ignition works by cutting off the negative side of the primary coil. At the same point, internally in the coil housing, one end of the secondary coil is connected, with it's other end connected to the middle, high voltage lead. As for the pins on the other side, marked " 15 " and " BAT ", that is indeed the positive side of the primary coil. One of the wires is supplying power to the coil directly from the battery, though the ignition switch, and the other one is going to the electronic module, to supply power for it to function.
After doing our homework, we managed to find out where those two pins marked as " 1 " and " RUP " correspond.
It is the negative side of the primary coil. One of the wires connects that negative side to the electronic module, so that the interruption can take place, and the other wire is the rpm signal to the speedometer on the dash.
The transistorised ignition works by cutting off the negative side of the primary coil.
At the same point, internally in the coil housing, one end of the secondary coil is connected, with it's other end connected to the middle, high voltage lead.
As for the pins on the other side, marked " 15 " and " BAT ", that is indeed the positive side of the primary coil. One of the wires is supplying power to the coil directly from the battery, though the ignition switch, and the other one is going to the electronic module, to supply power for it to function.