Engine Idle Speeo; Iacv - Honda CB 600F Hornet 2007 Shop Manual

FUEL SYSTEM (PGM-FI)
ENGINE IDLE SPEED
IDLE SPEED INSPECTION
NOTE:
• Inspect the idle speed after all other engine main­
tenance items have been performed and are
within specifications.
• Before checking the idle speed, inspect the fol­
lowing items.
- No OTC and MIL blinking.
- spark plug condition (page 3-8).
- air cleaner condition (page 3-7).
• The engine must be warm for accurate idle speed
inspection.
• This system eliminates the need for manual idle
speed
designs.
• Use a tachometer with graduations of 50 min'
(rpm) or smaller that will accurately indicate a 50
min' (rpm) change.
Lift and support the fuel tank (page 3-5).
Start the engine and warm it up to coolant tempera­
•c
ture 80
ENGINE IDLE SPEED: 1,350
If the idle speed is out of the specification. check the
following:
• throttle operation and throttle grip freeplay (page
3-6).
• intake air leak or engine top-end problem (page
8-3).
• IACV operation (page 5-901.

IACV

INSPECTION
The IACV is installed on the throttle body and is
operated by the step motor. When the ignition
switch is turned ON, the IACV operates for a few
seconds.
Check the step motor operating (beep) sound with
the ignition switch turned ON.
NOTE:
The IACV operation can be checked visually as fol­
lows:
• Remove the IACV (page 5-91
Connect the 4P (Black) connector to the IACV,
then turn the ignition switch ON.
5-90
adjustment compared
(176 °F), then check the idle speed.
± 100 min• ' (rpm)
).
to previous
-
(Black) CONNECTOR
J