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Electrical system
9 . 5
6.5 Check the headlight wiring conne
7 If no voltage is indicated, check the wiring
between the bulbholder and the light switch,
then check the switch (see Section 22).
8 On Speedfight 2 models, check the
terminals in the headlight unit wiring
connector (see illustration 6.5).
Tail llght
9 If the tail light fails to work, first check the
bulb and the terminals in the bulbholder (see
Section 9). Next check for voltage on the
supply side of the bulbholder wiring connector
(brown wire) with the engine running and light
switch ON. Tum the engine OFF.
10 If no voltage is indicated, check the rear
light wiring circuit (see Wiring Diagmms at the
end of this Chapter).
11 If voltage is indicated, check for continuity
between the green wire terminal and earth
(ground). If there is no continuity, check the
earth (ground) circuit for a broken or poor
connection.
Brake light
12 If the brake light fails to work, first check
the bulb and the terminals in the bulbholder
(see Section 9). Next check for voltage on the
supply side of the bulbholder wiring
connector (yellow/green wire) with the engine
running and the brake lever pulled in. Turn the
engine OFF.
13 If no voltage is indicated, check the brake
light switches (see Section 1 I), then the brake
light wiring circuit (see Wiring Diagrams at the
end of this Chapter).
14 If voltage is present, check the earth
(ground) circuit for a broken or poor
connection (see Step 11). Note that a resistor
is fitted in the earth wire to the brake light to
prevent the current backfeed as the starter
button is released from blowing the brake light
bulb. If the resistor has failed, there will be no
continuity in the earth circuit.
Licence plate light (where fitted)
15 If the light fails to work, first check the
bulb and the terminals in the bulbholder (see
Section 12). Next check for voltaae on the
&or terminals
6.23 Lighting res
running and light switch ON. Turn the engine
OFF.
16 If no voltage is indicated, check the
number plate light wiring circuit (see Wiring
Diagrams at the end of this Chapter).
17 If voltage is indicated, check for continuity
between the green wire terminal and earth
(ground). If there is no continuity, check the
earth (ground) circuit for a broken or poor
connection.
Turn signal lights
18 If one light fails to work, check the bulb,
the bulb terminals in the bulb socket and the
wiring connectors (see Section 14). If none of
the turn signals work, check the turn signal
circuit (see Section 13).
Instrument cluster lights
Note: On Speedfight 2 Furious and Metal-X
Furious models, the warning lights are
illuminated by LEOS. If a light fails to work, and
the fault cannot be traced to a wiring or
component failure, the instrument cluster will
have to be replaced with a new one.
19 If one light fails to work, check the bulb
and the bulb terminals (see Section 18). If
none of the lights work, refer to Wiring
Diagrams at the end of this Chapter, then
check for voltage at the brown wire terminal
on the supply side of the instrument cluster
wiring connector, with the engine running and
light switch ON. Turn the engine OFF.
20 If no voltage is indicated, check the wiring
between the connector, the light switch and
the ignition switch, then check the switches
themselves (see Section 22).
21 If voltage is indicated, disconnect the
multi-pin wiring connector and check for
continuity between the brown wire terminal on
the instrument cluster and the corresponding
terminals in the bulbholders; no continuity
indicates a break in the circuit.
22 If continuity is present, check for
continuity between the green wire terminal in
the wiring connector and earth (ground). If
there is no continuitv. check the earth
iistor is located behind the headlight panel
Lighting system resistor
23 The lighting system incorporates a
resistor to absorb current from the alternator
when the lights are turned off (see Wiring
Diagrams at the end of this Chapter). Remove
the headlight panel (see Chapter 7) and
disconnect the resistor wiring connectors
(see illustration).
24 To check the resistor, measure the
resistance between the terminals on the
resistor side of the connectors with a
multimeter set to the ohms x 1 scale. If the
result is not as specified at the beginning of
this Chapter, renew the resistor.
7 Headlight bulb
and sidelight bul
renewal
Note: I f the headlight bulb is of the quartz-
halogen type, do not touch the bulb glass as
skin acids will shorten the bulb's service life. If
the bulb is accidentally touched, i t should be
wiped carefully when cold with a rag soaked in
methylated spirit and dried before fitting.
A
Warning: Allow the bulb time to
cool before removing it if the
headlight has just been on.
Headlight
1 Displace the headlight panel (see Chapter 7).
On Speedfight models, unclip the back of the
headlight unit and remove it (see illustrations).
supply side of the bulbhold&
wiring
(ground) circuit for
broken or poor
7.la Unclip the back of the headlight
connector (brown wire) with the engine
connection.
panel..
.
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