Checking The Air; Thermistor Operation - APRILIA pegaso 650 i.e. Service Manual

ELECTRIC SYSTEM
6.5.7 CHECKING THE AIR THERMISTOR
OPERATION
N
Remove the saddle, see p 7.1.7 (REMOVING THE
SADDLE).
N
Disconnect the two-way connector (1) (coloured
green).
a
CAUTION
Upon reassembly, make sure that the electric con-
nector (1) is correctly coupled.
N
Unscrew and remove the thermistor (2).
N
Connect a tester (3) (set as an ohmmeter) to the ther-
mistor (2), as illustrated in the figure.
N
Immerse the thermistor in a container (4) holding water.
N
Immerse a thermometer (5) with a 0 to 150 °C (32 to
302 °F) range in the same container.
N
Place the container on a burner (6) and slowly warm up
the liquid.
N
Check the temperature indicated on the thermometer
(5) and the thermistor value indicated by the tester.
Make sure that the value varies according to the temper-
ature, as indicated.
Water temperature
(°C) (°F)
0 32
20 68
40 104
60 140
80 176
100 212
NOTE
If when the temperature changes the standard
values do not change or differ excessively from those in-
dicated in the table, change the thermistor (2).
6 - 16
- 00
Standard values (Ω)
(± 10%)
5457
2375
1111
563.8
306.4
176.7
Pegaso 650 I.E.
Release 00/2002-02