Idle Speed Adjustment; Muffler Inspection; Silencer Fiber Replacement - Yamaha YZ125N1 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:
9Loosen the locknut 1.
9Turn the throttle stop screw 2 until the en-
gine runs at the lowest possible speed.
9Tighten the locknut.
To increase idle speed
To decrease idle speed
EC35P010

MUFFLER INSPECTION

1. Inspect:
9O-ring 1
Damage Replace.
EC35R041
SILENCER FIBER REPLACEMENT
1. Remove:
9Seat
9Side cover (right)
9Bolt (silencer) 1
9Silencer 2
9Bolt (fiber) 3
INSP
ADJ
Turn the throttle
stop screw 2 2 in.
Turn the throttle
stop screw 2 2
out.