If the speed is low, the system does not operate. If the speed is high, the system will operate, even if the throttle has been released and the engine has returned to idle. This Smart Steering technology assists riders in learning to negotiate turns and maneuver. Average riders may not notice the system at all, since they realize throttle application is required during turning. But, if average riders should get into a situation where they momentarily forget to apply throttle, the system will be there to assist them also.
Throttle response is nearly instantaneous.
Exhaust smoke is almost non-existent. The brain center of the 1100 STX D.I.'s fuel injection is the Engine Management Module, which precisely coordinates the ignition and fuel delivery systems. The EMM monitors the crankshaft position, throttle position, engine temperature, intake air temperature, atmospheric pressure, EMM temperature and magneto output voltage to determine the amount of fuel to inject, ignition timing and regulation of fuel pump operation. The result is that the engine in the 1100 STX D.I. starts easier and runs smoother at idle than conventional personal watercraft engines, with its spark plugs firing up to ten times per piston stroke up to 5,500 rpm, ensuring more complete combustion. The water insulation also suppresses engine noise and lowers the temperature of the aluminum exhaust components for lower engine compartment temperatures.