APRILIA RSV4 R User Manual

a variable geometry control unit for managing the
system, interfaced with the engine injection control
unit
Operation
At key-ON, the variable geometry control unit low-
ers the ducts (if still in the raised position).
Subsequently, depending on the control voltage
on PIN 2 from the injection ECU (0V down, 5V up),
the ECU drives the electric motor with the relative
polarity for raising or lowering the ducts.
The drive voltage delivered to the motor is deter-
mined in relation to battery voltage and the motor
is stopped once a given current limit is reached or
if the time-out period of 500 ms has elapsed.
There is no feedback relative to duct position! If in
doubt, use the diagnostic instrument to actuate the
ducts.
In the case of a defect in the variable geometry
control unit, an error message is sent immediately
to the engine injection ECU.
The variable geometry control unit does store er-
rors
See also
Variable geometry intake
RSV4 R Power supply
P SUPP - 357

APRILIA RSV4 R Specifications

General

Displacement	999.6 cc
Torque	115 Nm @ 10, 000 rpm
Transmission	6-speed
Frame	Aluminum dual beam chassis
Seat Height	845 mm
Dry Weight	179 kg
Bore x Stroke	78 x 52.3 mm
Front Tire	120/70 ZR17
Rear Tire	190/55 ZR17
Wheelbase	1420 mm
Power	180 hp @ 12, 500 rpm
Front Suspension	Upside-down fork, 43 mm
Front Brakes	Dual 320 mm discs, radial calipers
Rear Brakes	220 mm disc, Brembo caliper
Fuel System	Fuel injection
Fuel Capacity	18.5 L (4.9 US gal)