5-24 FUEL SYSTEM AND THROTTLE BODY FAST IDLE The fast idle system is automatic type. When the fast idle cam is turned by the secondary throttle valve actuator, the cam pushes the lever on the throttle valve shaft causing the throttle valve to open and raise the engine speed. When the engine has warmed up, depending on the water tem- perature, ambient temperature and lapsed time, the fast idle is cancelled allowing the engine to resume idle speed. Ambient Temp. Fast idle rpm Fast idle cancel- ling time –5 °C (23 °F) 1 400 – 2 000 r/min Approx. 60 sec. 15 °C (59 °F) 1 400 – 2 000 r/min Approx. 20 sec. 25 °C (77 °F) 1 400 – 2 000 r/min Approx. 10 sec. FAST IDLE ADJUSTMENT • Lift and support the fuel tank. (5-3) • Start up the engine and run it in idling condition for warming up at the water temperature of 80 – 90 °C (176 – 194 °F). • Set the idle rpm to 1 150 r/min by the throttle stop screw 1. E • Check and adjust the TP sensor. (4-20) PL • Turn the ignition switch OFF. M • Disconnect the TP sensor coupler 2 and install the test har- ness. SA V • Start up the engine. • Measure the TP sensor output voltage at the wire terminals (between + terminal Red and - terminal Black). TP sensor output voltage at idle position: Approx. 1.125 V 09900-28630: TPS test wire harness 09900-25008: Multi-circuit tester set Tester knob indication: Voltage () • Turn the ignition switch OFF. • Remove the air cleaner box cover (2-4) and disconnect the STVA coupler. (5-14) • Turn the ignition switch ON. • Open the secondary throttle valve fully by turning it with your finger. • With the secondary throttle valve held at this position, mea- sure the output voltage of the TP sensor as shown.