All RPM and engine temperature limits, as well as cooling fan switching points, are configured in the limits window. Like the system settings window this one is divided into several panes. The RPM and temperature limits panes are divided into several subpanes as theses configurations are quite substantial, especially the RPM limits.
When the engine hits a RPM or temperature limit, one of three different limits - depending on their "severity" - might apply:
The limits are ordered, the sequence they are applied is: "Soft Limit - Hard Limit - Spark Off"
Limits can apply directly when they are hit, and are called undelayed limits then, or they get applied after a countdown had been running before, then they are called delayed limits. For DDFI-3 types of ECM another RPM limit can be applied, which is activated only for a cold engine, this is an undelayed limits as well.
Limits and timers have a trigger value where they are activated ("Start") and a reset value, where they are released ("Reset").
Click image for an unscaled view
Delayed RPM limits are different for high and low speed conditions (they differ dependent on the gear, the bike is in), but apparently this feature is used for early 2003 and 2004 models only. DDFI-3 type ECMs also apply the cold engine RPM limit.
Click image for an unscaled view
Temperature limits consist of the limits themselfs (the temperatures, that will trigger a limit) and conditions, that control how and when limits may get tightened or relased. The limits also control when the CEL starts and stops signaling an overheating condition.
Click image for an unscaled view
The third tab contains the trigger temperatures for the cooling fan, for key-on and key-off conditions. It also shows the temperature limits for speed dependent fan action.
Please note, that the use of speed-based or temperature-based limits is exclusive. As soon as the speed dependent limits are enabled, all other temperature-based limits, including the key-off functions, are disabled.
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