The Switches And Connections; Alternator; North American Ac Lights Wiring; Rectifierlregulator - Royal Enfield Bullet RES 500 Service Manual

C H A P T E R I I
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E L E C T R I C A L W O R K
THE SWITCHES AND CONNECTIONS
The Switches and Connections
Knowledge of the switches and connections is important in troubleshooting. The various models of Bullet
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Home,
UK, North American
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are equipped with different switches, but these tables will hopefully be of help in identifying
the connections with your switches. This information is taken from the Factory manual; there may be variations
among different machines. (Many components are likely made by a sub-contractor, and the wire colours in some cases
may disagree with those of the main loom at the connection points.) All connections and colours are quoted directly
from the Royal Enfield Motors (India) Manual.
I. Alternator
In most cases, the A C output wires are White, Purple, and Green. The purple and green wires connect t o one
another as they exit the chaincase, and form one leg of the A C power t o the rectifier. The White is the other leg.
North American AC Lights Wiring
Some later models also have an second A C output
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another pair of wires
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for the headlight. The factory has
incorporated a change t o save power in cases of always-on lights
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mandated in North America. In these cases, the
second output is connected directly t o the headlight (a "shunt-type" AC regulator is incorporated), with no connection
through the rectifier. If you ever have occasion t o disconnect these wires, be sure t o make a note of the
connections into your wiring loom for all four wires, and ensure that reconnection is identical. You should have a
pair of purple wires feeding the rectifier, and a pair feeding the light consisting of one amber and one yellow.
Since both outputs are AC, the polarity doesn't matter, but which pair connects t o which does, since one pair is
higher output than the other. This case will be dealt with later in this section.
2. RectifierlRegulator
A. INTEGRATED
The Rectifier and Regulator are contained in a single unit. Connections are as follows:
White
:
I
Wire Colour Connection
Black
Negative D C Output
White
I
AC lnput
I
Green
i
:
AC Input
Brown
/
Positive D C Output
6
Green
j
RR Unn - - ) .
The AC wires (input to rectifier) are not polarity specific; they may be connected either way. The D C wires
(all after the output from the rectifier) must be connected with proper polarity.
The Enfield BULLET MANUAL by
Pete
Snidal C 3 2002
153