Honda XL125LK, Owner'S Manual

Page: 86 / 243

6-13
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FUEL SYSTEM
IDLE DROP PROCEDURE (XL125LK)
1. Turn the pilot screw clockwise until it is lightly seated
then back it out the specification given.
This is an initial setting prior to the final pilot screw
adjustment.
• Damage to the pilot screw seat will occur if the pilot
screw is tightened to the seat.
2. Warm up the engine to operating temperature.
Stop and go riding for 10 minutes sufficient.
3. Stop the engine and connect a tachometer
according to the tachometer manufacturer’s
instructions.
4. Start the engine and adjust the idle speed with the
throttle stop screw [1].
5. Turn the pilot screw inward or outward slowly to
obtain the highest engine speed.
6. Lightly open the throttle 2 – 3 times, then adjust the
idle speed with the throttle stop screw.
7. Turn the pilot screw inward to the final opening.
8. Readjust the idle speed with the throttle stop screw.
SECONDARY AIR SUPPLY SYSTEM
(XR125LK/LEK)
SYSTEM INSPECTION
Start the engine and warm it up to normal operating
temperature.
Remove the right side shroud (page 2-4).
Disconnect the air cleaner sub filter-to-PAIR control
valve hose [1].
Check that the hose joint of the air filter is clean and
free carbon deposits.
If the port is carbon fouled, check the PAIR check valve.
INITIAL OPENING: 1-7/8 turns out
TOOL:
[1] Pilot screw wrench
07908-4730002
IDLE SPEED: 1,500 ± 100 min
-1
(rpm)
FINAL OPENING: 5/8 turns in from the position
obtained in step 6
[1]
[1]
[1]