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Trekker - Squab
ELECTRIC EQUIPMENT
15
a
b
5kΩ
5kΩ
3
4
5
6
1
26
5
on
off
6
3
1
4
2
12V 4Ah
15
c
a
1
10
8
7
6,7Ω 5w
9
5,9Ω 30w
11
26
B
1,2w
5/21w
12V 4Ah
A
0,75Ω 4w
13
3 x 1,2w
15w
15
14
27
1 - Flywheel
a - ignition
b - sensor
2 - Ignition switch
3 - (CDI) ignition unit
4 - High voltage coil
5 - Interference suppresser 5 KW
6 - Spark plug resistance 5 KW
15 - Battery
26 - Starter motor
1 - Flywheel
c - alternative current
7 - Regulator
a - AC regulator
8 - Choke
9 - Resistance 6,7 W 5W
10 - Lighting control
11 - Resistance 5,9 W 30w
13 - Headlamp
A - Instrument panel lighting
B - Headlamp telltale
14 - Rear and stop light
15 - Battery
26 - Starter motor
27 - Current limiter
IGNITION
Operating principle :
The ignition coil charges a condenser
in the CDI unit. Passage of the rotor
pad in front of the sensor authorises
the discharging of the condenser in
the primary winding of the high voltage
coil via a thyristor, in order to generate
through transformation in the
secondary, a voltage in the region of
20 000 volts at the spark plug.
Troubleshooting :
- Check the connections, especially
the earth connection of the starter
motor.
- Check by successively replacing with
new components: the spark plug,
radio interference suppressor, high
voltage coil, CDI unit.
- Check the key switch.
Example of a breakdown: the engine
only runs with the rear brake applied.
Cause: earth wire of the starter
motor is damaged.
The CDI unit, ref. 709205 is used on
all 50cc powered two-wheelers as well
as on the SV 80cc.
Warning :
A second CDI unit, ref. 705272
(marked CI 08) is reserved for SV 125
SC-SX models.
ALTERNATING CURRENT
POWERED CIRCUITS
LIGHTING AND STARTER
MOTOR
Operating principle:
Three coils connected in series in the
flywheel magneto generate an
alternating current stabilised by the
regulator to give a maximum voltage
of 12V ± 0.5V.
LIGHTING
When in the < lights off > position
(Day*), current is directed from the
switch towards a résistance of 5.9 Ù
30W where it is consumed (pink wire).
When in the “ lights on ” position
(night), current is supplied to the bulbs
(brown wire); headlight, taillight, instru-
ment panel light, headlight telltale.