Suzuki FL125S Service Manual page 295

COMPENSATION OF INJECTION TIME (VOLUME)
The following different signals are output from the respective sensors for compensation of the fuel injection
time (volume).
SIGNAL
ENGINE TEMPERATURE SENSOR
SIGNAL
INTAKE AIR TEMPERATURE
SENSOR SIGNAL
HEATED OXYGEN SENSOR SIGNAL
ENGINE RPM SIGNAL
STARTING SIGNAL
ACCELERATION SIGNAL/
DECELERATION SIGNAL
FUEL INJECTOR DRIVE CURRENT
SIGNAL
INJECTION STOP CONTROL
SIGNAL
TIP-OVER SENSOR SIGNAL
(FUEL SHUT-OFF)
OVER-REV. LIMITER SIGNAL
DESCRIPTION
When engine temperature is low, injection time (volume) is
increased.
When intake air temperature signal is low, injection time (vol-
ume) is increased.
Air/fuel ratio is compensated to the theoretical ratio from
density of oxygen in exhaust gasses. The compensation
occurs in such a way that more fuel is supplied if detected
air/fuel ratio is lean or less fuel is supplied if it is rich.
At high speed, the injection time (volume) is increased.
When starting engine, additional fuel is injected during
cranking engine.
When starting engine, additional fuel is injected during
cranking engine.
During acceleration, the fuel injection time (volume) is
increased in accordance with the throttle opening speed and
engine r/min. During deceleration, the fuel injection time
(volume) is decreased.
ECM detects this current and compensates the injection
time (volume).
DESCRIPTION
When the motorcycle tips over, the tip-over sensor sends a
signal to the ECM. Then, this signal cuts OFF current sup-
plied to the fuel injector and ignition coil.
The fuel injector stops operation when engine r/min reaches
rev. limit r/min.
FL125SDW 8-20