Montesa COTA 4RT RACE REPLICA Owner's Manual page 161

Servicing information
 Bear in mind the following when replacing the front
headlight bulb.
- Use clean gloves when replacing the bulb. Do not
touch the front headlight bulb with your fingertips,
since this could produce hot spots on the bulb and
cause it to break.
- If you touch the bulb with your bare hands, clean it
with a cloth moistened with alcohol to prevent its
early failure.
 Ensure that you replace the dust cover after changing
the front headlight bulb.
 The bulb for the front headlight gets very hot when it is
on and remains hot for a while after the front headlight
has been turned off. Ensure that you leave it to cool
before carrying out any maintenance work.
 Continuity checks can be carried out using the switches
on the motorcycle.
 The following colour codes are used throughout this
section.
COLOUR CODES
L Blue
G Green
Lb Light blue
O Orange
R Red
Y Yellow
Bl Black
Gr Grey
Lg Light green
P Pink
W White
Lo Hi BAT BAT Po
(N)
COLOR W L B B BR
LIGHTING SWITCH
INTERRUPTOR DE LUCES
Checks:
If the engine starts but the front headlight or the position
light do not work, check the following:
 Bulb blown or not of the specified wattage.
 Loose connector.

Start the engine and check the voltage between the
following terminals of the connector 9P (white) on the
harness side:
Connection: Black (+) – Ground (–)
Standard: 12V approximately.
If there is no voltage, check the following:
 Open circuit in the black wire between the ignition
relay and the connector 9P (white) on the handlebar.
If there is voltage, disconnect the connector 9P from the
left switch on the handlebar.
Check the continuity between the terminals in each
switch position, as shown in the table.
Electrical servicing
L W R
N
COLOR Y/G R/B L/R
TURN SIGNAL SWITCH
INTERRUPTOR DE INTERMITENTES
Indicator light/Indicator light relay.
Checks:
If the engine starts but the indicator lights do not work,
check the following:
 Bulb blown or not of the specified wattage.
 Loose connector.
 Operation of the indicator light switch:
Remove the housing for the upper headlight.
Disconnect the connector 9P from the left switch on the
handlebar.
Check the continuity between the terminals in each
switch position, as shown in the table.
If the previous elements are working properly, remove
the housing for the upper headlight and disconnect the
connector 2P white from the indicator light relay.
Start the engine and check the voltage between the
following terminals of the connector on the harness side:
Connection: Red/Black (+) – Ground (–)
Standard: 12V approximately.
If there is no voltage, check the following:
 Open circuit in the Red/Black wire between the indicator
light relay 2P (white) and the ignition relay.
6-11 6-11