APRILIA RS 125 Workshop Manual page 178

ELECTRIC SYSTEM
WARNING
Cutting the jumper across the grey and red
wires of the Rave control unit will set solenoid
actuation threshold to 7,800 rpm.
•
Check that the piston moves freely.
• Start the engine and keep it at idling speed.
•
Measure resistance across the wires using a tester:
Correct reading = 2.2 Ohm ± 10%.
Key:
1 – RAVE control unit
2 – RAVE solenoid
3 – Flywheel / regulator
•
Measure voltage across the solenoid wires with a
tester:
Correct reading = 11.5 ± 1 V at idling speed during a
one-second (only) pulse; after this initial pulse, reading
should stabilise at 5.5 ± 1 V D.C.
13. Safety diode
(stand, neutral, neutral light, starter relay)
Diode test
• Disconnect the (white) two-way connector (4).
Check diodes for correct operation as follows:
7 - 8
RS125