Engine Idle Speed; Iacv; Idle Speed Inspection - Honda CBF600SA Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
FUEL SYSTEM (PGM-FI)

ENGINE IDLE SPEED

IDLE SPEED INSPECTION

• 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 DTC 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
-1
min
Lift and support the fuel tank (page 3-5).
Start the engine and warm it up to coolant tempera-
ture 80 °C (176 °F), then check the idle speed.
ENGINE IDLE SPEED: 1,300 ± 100 min
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 5-90).

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.
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
email: info@motomatrix.co.uk
adjustment compared
(rpm) change.
to previous
-1
-1
(rpm)
IACV 4P (Black) CONNECTOR