Engine Idle Speed Inspection; Radiator Coolant - Honda CRF1000 Shop Manual

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MAINTENANCE
ENGINE IDLE SPEED
IDLE SPEED INSPECTION
• Inspect the idle speed after all other engine
maintenance items have been performed and are
within specifications.
• Before inspecting the idle speed, check that the
following items:
– No DTC and MIL blinking
– Spark plug condition (page 3-7)
– Air cleaner element condition (page 3-4)
– Throttle operation and throttle grip freeplay (page
3-3)
• The engine must be warm for accurate idle speed
inspection.
• This system eliminates the need for manual idle
speed adjustment compared to previous designs.
Start the engine and warm it up until the coolant
temperature rises to 80°C (176°F).
Stop the engine and connect a tachometer according to
the tachometer manufacturer's operating instructions.
Start the engine and let it idle. Check the idle speed.
ENGINE IDLE SPEED: 1,200 ± 100 min
If the idle speed is out of the specification, check the
following:
– Intake air leak or engine top-end problem (page 10-
2)
– IACV operation (page 7-16)

RADIATOR COOLANT

Check the coolant level of the reserve tank with the
engine running at normal operating temperature.
The level should be between the "UPPER" [1] and
"LOWER" [2] level lines.
If necessary, add the recommended coolant.
RECOMMENDED ANTIFREEZE:
High quality ethylene glycol antifreeze
containing silicate-free corrosion inhibitors
RECOMMENDED MIXTURE:
1:1 mixture with distilled water
Remove the reserve tank cap [1] and add the coolant to
the "UPPER" level line.
Reinstall the cap.
Check to see if there are any coolant leaks when the
coolant level decreases very rapidly.
If the reserve tank becomes completely empty, there is
a possibility of air getting into the cooling system.
Be sure to remove any air from the cooling system
(page 8-4).
3-14
-1 (rpm)
[1]
[2]
[1]