This regulator WILL This regulator WILL NOT About Batteries
These voltage regulators completely eliminate the annoying problem of either over charging or under charging your battery. No more guesswork when changing the charge rate, no more ruined paint jobs, no more fried batteries! Best of all, these modifications are not visible to field judges!
This voltage regulator is designed to fit all Splitdorf DU model generators, including DU-1, DU-5, and DU-7, both clockwise and counterclockwise rotation. Installation of this solid state voltage regulator will allow you to easily change the direction of rotation of any DU series generator to fit your particular application. These generators were commonly used on Indian, Henderson, Excelsior and other motorcycles (except Harley Davidson) from 1918 to 1931.
Installation
This regulator fits neatly under the cap of all DU series generators and cannot be detected from the outside. Installation of this regulator requires removal of the original third brush and cutout relay and can be performed by the average Joe, even those who may be electrically challenged! Detailed instructions and necessary hardware are included. Only a small amount of high temp RTV silicone is not included (available at all auto parts stores for a minimal cost).
The photograph below shows a solid state voltage regulator installed on a DU-7 generator.
The Splitdorf Solid State Voltage Regulator WILL:
- Allow you to easily change the direction of rotation of any DU series generator to fit your particular application. For more details on reversing rotation, refer to the Splitdorf Generator web site at Steve Blancard's original web site .
- Allow continuous operation of stock lighting without discharging the battery.
- Maintain the battery at 7.25 volts maximum with a charge rate of 0.5 amps when running with lights off.
- Allow the generator charging rate to fluctuate from 0.5 amps up to a maximum of approximately 10 amps. (This 10 amp figure may vary considerably, depending on the model and condition of your generator, battery capacity and lighting loads on your motorcycle.)
- Allow the generator to be operated continuously when there is no battery in the system without damaging the generator or regulator, unlike the original, which would destroy the generator if run for any length of time with no battery in the system.
- Eliminate any problems associated with the original style cutout (either electrical or centrifugal type), since it is replaced by an internal diode in the new regulator circuit.
- Be virtually impossible to detect from the outside, unless observing the ammeter while running the engine.
- Extend the battery life considerably, assuming you have a good battery to start with and it is given reasonable care.
The Splitdorf Solid State Voltage Regulator WILL NOT:
- Fix a poorly or non-functioning generator. You must have a properly functioning generator before installing the regulator!
- Make up for a dead or weak battery. Get a good battery and take care of it!
- Allow the operation of lights and charge a low or dead battery simultaneously.
- Allow the generator to produce any more power than it was originally rated for, other than for very short periods of time, without damaging the generator or regulator. Therefore, this means that you are stuck with the stock lighting equipment that was on your motorcycle originally. Don’t expect this regulator to allow the old Splitdorf generator to power a halogen light, because all it will do is drain the battery and overload the generator, possibly destroying both in the process!
Splitdorf literature rates the different
models as follows:
DU-1: 4.5
amps at 7.5 volts
DU-5: 4.25 amps at 7.5 volts at 2500 rpm
DU-7: 4.5 to 5.5 amps at 3500 rpm
12 amp-hour lead acid batteries are available for sale on this web site. Go to the Order Now page for purchasing information.
