Old Britts

Simplified Wiring Diagrams

Summary:

This article will hopefully simplify the wiring on Norton Commandos. We will breake out the wiring into self contained groups, ignoring all components except what is included in that group.



Charging Systems:

Stock


Upgraded 1 phase


Upgraded 2 phase


Alt Info



Ignition Systems:

Power Arc Electronic Ignition

Power Arc


Stock


Boyer 2 coils - Positive Ground


Boyer Dyna coil - Positive Ground


Boyer Dyna coil - Negitive ground



Lighting Systems:

Headlight



Miscellaneous:

For MK3 Commandos with a Boyer Ignition a power relay will help eliminate back firing since the Boyer really likes 12v. This would not be needed for the Power Arc ignition since it will work down to 6v.

Boyer Dyna coil - Power relay


Boyer & regulator - Negitive ground


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