General information
The engine management system fitted to this model is adaptive. This means that the system is able to learn about new or changing operating conditions and continuously adapt itself without needing to constantly make major adjustments from a fixed baseline setting.
Adaptive changes can become necessary because of changing rider behavior, changes in the region in which the bike is operated (i.e. operation at high altitude where it was previously used at sea level) or because a new part may have been fitted which has slightly different characteristics to the old part. All adaptive changes are automatic and require no intervention by rider or dealer.
Adaption status
To see if a motorcycle has fully adapted, a facility named 'ADAPTION STATUS' is provided on the diagnostic tool. The following adaption details can be examined:
Function Examined | Report Method |
Closed throttle position reference status | adapted/not adapted |
Idle speed control adaption status | % |
Oxygen sensor adaption status (off idle) | % |
Oxygen sensor adaption range (off idle) | % |
Oxygen sensor adaption status (idle) | % |
Oxygen sensor adaption range (idle) | % |
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 status | Adapted |
Idle speed control adaption status | Between +100 and -100% |
Oxygen sensor adaption status (off idle) | 0%+/-10% |
Oxygen sensor adaption range (off idle) | Between +100 and-100% |
Oxygen sensor adaption status (idle) | 0% +/-10% |
Oxygen sensor adaption range (idle) | Between +100 and -100% |
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:
1. Ensure the engine is cold.
2. WITHOUT TOUCHING THE THROTTLE, 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, scroll to ADJUST TUNE 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 ‘range1 figures at 100% are seen, then the adjusted 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, use the RESET ADAPTIONS facility on the diagnostic tool (found under the adjust tune menu) and begin the adaption process described above.