2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 49Get this manual
TECHNICAL FEATURES After warming upidling
When the PCM receives input signals that indicate the completion ,;::;:;:;;-c;::::;:;:;;, STEP MOTOR of engine warm-up, it operates the step motor to move the slide 00 valve to the downwardThis results in reduced amount of00, bypassed air compared to the amount during engine warm-up,
which maintains proper engine idle speed,
BANK ANGLE SENSOR
SLIDE VALVE
The bank angle sensor is located under the steering cover, it detects vehicle rollover and interrupts the ignitionfuel system controlThe bank angle sensor system controls tile power supply for the injector, ignition coil and fuel pump directly through the engine stop relay'