Idle Speed Adjustment/Muffler Inspection/Silencer Fiber Replacement - Yamaha YZ125(N)/LC Owner's Service Manual

IDLE SPEED ADJUSTMENT/MUFFLER INSPECTION/
SILENCER FIBER REPLACEMENT
3-15
EC35M010
IDLE SPEED ADJUSTMENT
1. Start the engine and thoroughly warm it up.
2. Adjust:
9
Idle speed
Adjustment steps:
9
Loosen the locknut 1.
9
Turn the throttle stop screw 2 until the
engine runs at the lowest possible speed.
9
Tighten the locknut.
To increase idle speed
To decrease idle speed
EC35P010
MUFFLER INSPECTION
1. Inspect:
9
O-ring 1
Damage Replace.
EC35R041
SILENCER FIBER REPLACEMENT
1. Remove:
9
Seat
9
Side cover (right)
9
Bolt (silencer) 1
9
Silencer 2
9
Bolt (fiber) 3
INSP
ADJ
Turn the throttle
stop screw 2 2 in.
Turn the throttle
stop screw 2 2
out.