Rules For Carburation, Regulation And Adjustment; Co% Check - MOTO GUZZI California EV Workshop Manual

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54
R
ULES FOR CARBURATION
ADJUSTMENT
Connect the PC to the diagnosis socket and the
vacuometer
• Detach the throttle body rod, 1/2 turn by-pass;
• Using a throttle adjusting dowel, regulate the throttle
potentiometer on the RH throttle body to a value of
3,6°±0,5;
• Equal the vacuum in the two cylinders by regulating it
if necessary, through the throttle adjustment dowel on
the LH throttle body;
• Connect the throttle body rod;
• Check the vacuum at different r.p.m, if necessary
synchronize it using the adjustment handwheel;
• Detach the vacuometer.
The idling speed must be 1050/1150 RPM.
N.B.
If, after this procedure, the idling speed is not
within the indicated range, check the
potentiometer by fitting the special cable
connected to the digital tester and positioning
the completely closed throttle on the attached
rod.
The correct value must be 150 mV±15mV.
CO%
CHECK
Should the engine warming-up procedure be carried out
on the bench, the maximum speed shall range between
2000 and 3000 r.p.m.
• Connect the PC to the diagnosis socket and the CO
to the two special sockets on the exhaust manifolds
.
• The CO% test must be carried out when the engine is
idling, at least 2 minutes after engine ignition (due to
the automatic enrichment) and with an engine oil tem-
perature of 70°÷80°, indicated by the engine oil sensor.
This can be viewed on the Dashboard page of the
MDST programme.
• Check that a CO% value ranging between 3,5 and
4,5. is detected for both cylinders.
An unbalance of ±0,5% between the two cylinders is
acceptable.
• If the CO% value does not correspond to the
prescribed one, adjust the trimmer using the Active
Test page and following the diagnostic adjustment pro-
cedure on the PC.
F
UEL SYSTEM
,
REGULATION AND