Checking The Engine Idling Speed - Yamaha YP400T Service Manual

ADJUSTING THE EXHAUST GAS VOLUME/

CHECKING THE ENGINE IDLING SPEED

5. Check that "C1" appears on the odometer
LCD, and then simultaneously press the
"SELECT" and "RESET" buttons for 2 sec-
onds or more.
6. Change the CO adjustment volume by
pressing the "SELECT" and "RESET" but-
tons.
NOTE:
_
The CO adjustment volume appears on the
odometer LCD.
• To decrease the CO adjustment volume,
press the "RESET" button.
• To increase the CO adjustment volume,
press the "SELECT" button.
7. Release the "RESET" and "SELECT" but-
tons to execute the selection.
8. Turn the main switch to "OFF" to cancel the
mode.
EAS00054
CHECKING THE ENGINE IDLING SPEED
NOTE:
_
Prior to checking the engine idling speed, the
air filter element should be clean, and the
engine should have adequate compression.
1. Start the engine and let it warm up for sev-
eral minutes.
2. Remove:
• storage box lower plate
Refer to "RIDER SEAT AND STORAGE
BOX".
3. Check:
• engine idling speed
Out of specification → Replace the throttle
body.
Engine idling speed
1,300 ~ 1,500 r/min
4. Install:
• storage box lower plate
Refer to "RIDER SEAT AND STORAGE
BOX".
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