APRILIA TUONO 1000 R, Workshop Manual

Page: 56 / 279

FUEL SYSTEM
3 - 6
TUONO 1000
3.1.3. CYLINDER SYNCHRONISATION AND CO LEVEL ADJUSTMENT
•
With the engine off, connect Axone 2000 to the
diagnosis socket and to the vehicle battery.
•
Switch the tester on.
• Connect the gas analyser tubes to the relevant fittings.
• Start the setting with both throttle body bypass screws
closed.
• Carry out the following procedure when the engine
temperature is above 75°C (167°F).
VARIANT 1 (version with standard exhaust pipes)
•
Using AXONE, check the “front cylinder pressure” and
“rear cylinder pressure” parameters; ensure that they
read:
front cylinder pressure = rear cylinder pressure – (50 ±
10) mbar
• Should the FRONT CYLINDER PRESSURE value be
incorrect, turn the FRONT CYLINDER bypass screw.
• Read the residual CO value while alternatively opening
the analyser valves.
Turn the bypass screws if the value does not stay
between
0.7 and 1.2 % and if the difference between
the two readings is greater than 0.5 %.
• Once the CO test is completed, ensure that the
FRONT CYLINDER PRESSURE and REAR
CYLINDER PRESSURE parameter values are
approximately within the specified range.
VARIANT 2 (version with open exhaust pipes)
DANGER
It is strictly prohibited to make racing
adjustments and ride the vehicle with said
setting on roads and motorways
CAUTION The following settings only apply to ECUs with
racing mapping for open pipes.
•
Using AXONE, check the “front cylinder pressure” and
“rear cylinder pressure” parameters; ensure that they
read:
front cylinder pressure = rear cylinder pressure – (50 ±
10) mbar