Terminology; Typical Values; Forcing Adaption To Take Place; Fault Indications - Triumph Thunderbird Service Manual

Terminology
Where the term 'status' is used, this indicates how far the
present operating parameter is from the stored (baseline)
value. The nearer these figures are to zero the better as it
indicates the motorcycle has adapted to its current
operating conditions.
The term 'range' indicates how much <in percentage
terms) of the adjustment range has been used to reach
the current operating status.
Typical Values
In a correctly adapted motorcycle, the following will be
typical:
Function Examined
Read Out
Closed throttle position reference Adapted
status
Idle speed control adaption status Between +100
and -100%
Oxygen sensor adaption status (off 0% +/- 10%
idle)
Oxygen sensor adaption range (off Between +100
idle)
and -100%
Oxygen sensor adaption status 0% +/- 10%
<idle)
Oxygen sensor adaption
range Between +100
(idle)
and -100%
Fuel System/Engine Management
Forcing adaption to take place
If the read out indicates that the motorcycle is not
adapted, the following will force the system to make
adaptions:
Never start the engine or let it run for any length of time
in a closed area. The exhaust fumes are poisonous and
may cause loss of consciousness and death within a
short time. Always operate the motorcycle in the open-
air or in an area with adequate ventilation.
Note:
• Resetting adaptions with the motorcycle
connected to an exhaust extraction system
may cause incorrect values to be set, causing
poor engine running. Always reset the
adaptions with the engine disconnected from
any exhaust extraction system whilst ensuring
the motorcycle is positioned in a well
ventilated area.
1. Ensure the engine is cold.
2. WITHOUT TOUCHING THE THROTILE, start the
engine and allow it to warm up until the cooling fan
comes on.
3. Leave the engine to idle for a further 12 minutes.
Note:
• As an alternative to the above process, connect
the diagnostic tool, select ADJUST TUNE (see
the Triumph Diagnostic Tool User Guide) and
select RESET ADAPTIONS. This will force a fast
adaption routine to take place in around 5
seconds. For this to happen, the engine MUST
be running, it must be at normal operating
temperature and in closed loop control mode.
Under any other conditions fast adaption will
not take place and may cause default values to
be loaded, which may then require a
normal 12
minute adaption routine to be run.
Fault Indications
If 'range' figures at 100% are seen, then the adjustment
has reached maximum indicating a mechanical fault exists
on the motorcycle. This can be due to a number of faults
but the most likely causes will be low/high fuel pressure,
faulty injectors or air leaks at the throttle bodies or airbox.
In these circumstances, locate and rectify the fault, and
reset the adaptions as described above.
SelVice Manual - Thunderbird
10.117