The first thing, of course, is to determine the cause of overfilling. If the cause is the original regulator (parallel, shunt type) and if the generator (stator) is three-phase , there is a hack that will reduce overcharging and allow you to continue driving without destroying the battery. This measure is only a temporary solution and is not advice for a permanent solution to the problem . Hack should be used as short as possible because it increases the probability of failure of the diode rectifier in the regulator.

 

   In order to reduce the overcharging of the accumulator, one of the three wires that goes from the generator to the regulator should be cut off. In this way, the maximum power of the generator will drop by half and overcharging will occur at a higher number of revolutions. Before continuing driving, you should turn on the lights and possibly replace burned-out bulbs, and start the motorcycle and test until which throttle level the voltage on the battery does not exceed 14.5VDC. When we see what number of revolutions it is, in further driving you should drive without exceeding the number of revolutions of the engine after which the battery voltage is higher than 14.5VDC.

 

   This will protect the battery and electronics on the motorcycle from damage. In the case of a regulator that has a connector on the wires, the best place to disconnect one wire from the generator is about 1 cm from the regulator. The foot can also be pulled out of the connector. Do not break more than one wire or charging will no longer work. The broken wire must not come into electrical contact with ground or other wires. A normal consequence of the modification is that the motorcycle charges the battery more poorly at idle.

 

   Warning: On motorcycles that have automatic ignition of the lights via the voltage from the generator, the light relay coil may be overloaded if the wire from the generator to the regulator (C) is cut because there is a diode on that wire that starts the light relay. It is recommended to cut wire A or B. It is not 100% certain that cutting wire C will destroy the auto light relay, but it is possible.

 

   Also, voltage regulators that have a Kontakt+ wire (Ignition - D) can overcharge the battery, if there is an interruption or voltage drop on that wire. For example this may cause a poor key contact connection. It is necessary to check the voltage on the Kontakt+ wire on the regulator (D). If it is normal (approx. 14.3V), it means that the regulator is correct and that the cause of the voltage drop on the Kontakt+ wire should be solved. The location of the solution to the real problem, the installation can be modified so that the voltage drop on the contact+ wire does not affect the battery voltage regulation. An example of a quick solution instruction (see scheme 2). Of course, a bad ignition switch can sooner or later fail completely and leave the motorcycle broken. So this should only be a temporary measure until the real problem is solved.