Electronic regulator

6 Volt - chassis


Lucas System  

Mounted in the (sp 13) relay box






Red       -      D              D              dynamo

Blue       -     DF            F              Field coil

White    -      B               A              Batteri +

Black       -                     E              Chassis


The regulator housing is connected to regulator ground (black).


Before removing the old regulator, note which colour wire went to which connection.


Remove one of the wires from the battery before

you “enter” the wiring harness. 


It is recommended to place a fuse (16 A) in

 the wire between battery and chassis (ground)



Warning: mounting screws may not exceed 5 mm into the regulator housing.           


Testing the  dynamo:


Method 1: Remove the wires from the dynamo - connect D and F with a piece of wire – connect a 6-12 volt bulb (or a DC voltmeter) between D and ground – run the engine.  If using a bulp, first connect this when engine is running

With the dynamo ok, the bulb should now glow (6-10 volt).

Beware of too high rpm, the dynamo is not regulated and may be damaged.

With the wire F removed, it should be possible to measure 1,5-2 volt just on the remaining magnetism alone with the engine running. (If the dynamo is not being used for a longer period, the remaining magnetism will be lost).



Method 2: Disconnect the dynamo - connect D and F to plus on a battery – connect dynamo chassis to battery negative  The dynamo should now run like a motor, and in the direction it is pulled.


Mounted in a 350cc