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Suzuki VZR1800 2008 User Manual

Suzuki VZR1800 2008
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– 15 –
FAIL-SAFE FUNCTION
FI system is provided with fail-safe function to allow the engine to start and the motorcycle to run in a mini-
mum performance necessary even under malfunction condition.
The engine can start and can run even if the above signal is not received from each sensor. But, the engine
running condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is nec-
essary to bring the motorcycle to the workshop for complete repair.
When two ignition signals or two injector signals are not received by ECM, the fail-safe circuit can not work
and ignition or injection is stopped.
ITEM FAIL-SAFE MODE
STARTING
ABILITY
RUNNING
ABILITY
IAP sensor Intake air pressure is fixed to 760
mmHg.
“YES” “YES”
TP sensor The throttle opening is fixed to full open
position.
“YES” “YES”
ECT sensor Engine coolant temperature value is
fixed to 80 °C (176 °F).
“YES” “YES”
IAT sensor Intake air temperature value is fixed to
40 °C (104 °F).
“YES” “YES”
Ignition signal #1.1 or #1.2 Ignition-off “YES” “YES”
#1 cylinder can run.
#2.1 or #2.2 Ignition-off “YES” “YES”
#2 cylinder can run.
Injection signal #1 Fuel-cut “YES” “YES”
#2 cylinder can run.
#2 Fuel-cut “YES” “YES”
#1 cylinder can run.
Secondary throttle valve
actuator
Secondary throttle valve is fixed to full
close position. When motor disconnec-
tion or lock occurs, power from ECM is
shut off.
“YES” “YES”
STP sensor Secondary throttle valve is fixed to full
close position.
“YES” “YES”
Gear position signal Gear position signal is fixed to 5th
gear.
“YES” “YES”
Oxygen sensor
(E-02, 19, 24, 51)
Fuel-air compensation ratio is fixed to
normal condition.
“YES” “YES”
PAIR control solenoid valve ECM stops controlling PAIR control
solenoid valve.
“YES” “YES”
EXCV actuator EXCV actuator is fixed to full open
position. When motor disconnection or
lock occurs, power from ECM is shut
off.
“YES” “YES”
ISC valve When motor disconnection or lock
occurs, power from ECM is shut off.
“YES” “YES”
VZR1800 ('08-MODEL)14-15

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Suzuki VZR1800 2008 Specifications

General IconGeneral
Displacement1783 cc
Bore x Stroke112.0 mm x 90.5 mm
Compression Ratio10.5:1
Fuel SystemFuel injection
IgnitionElectronic ignition (transistorized)
Transmission5-speed constant mesh
Final DriveShaft drive
Front SuspensionInverted telescopic, coil spring, oil damped
Rear SuspensionLink type, coil spring, oil damped
Front BrakesDual hydraulic disc
Rear BrakesSingle hydraulic disc
Engine Type4-stroke, liquid-cooled, DOHC, V-twin
Front Tire130/70R18M/C 63H
Overall Length2485mm (97.8 inches)
Overall Height1185 mm
Ground Clearance140 mm (5.5 in)
Seat Height705 mm
Curb Weight347 kg

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