Page 96 - 2019 SHOP MANUAL CRF1000/A/D

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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.
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ENGINE IDLE SPEED: 1,200 ± 100 min (rpm)
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. [1]
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
[2]

Remove the reserve tank cap [1] and add the coolant to
the "UPPER" level line. [1]
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).

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