Yamaha YZ125/LC Manuel D'atelier Du Proprietaire page 182

DRIVE CHAIN SLACK ADJUSTMENT
5. Install:
9 Drive chain 1
9 Joint 2
9 Master link clip 3
cC
Be sure to install the master link clip to the
direction as shown.
a Turning direction
6. Lubricate:
9 Drive chain
Drive chain lubricant:
SAE 10W-30 motor oil or suitable
chain lubricants
EC36A061
DRIVE CHAIN SLACK ADJUSTMENT
1. Elevate the rear wheel by placing the suit-
able stand under the engine.
2. Check:
9 Drive chain slack a
Above the seal guard installation bolt.
Out of specification ¡ Adjust
Drive chain slack:
40~50 mm (1.6~2.0 in)
NOTE:
Before checking and/or adjusting, rotate the rear
wheel through several revolutions and check the
slack several times to find the tightest point. Check
and/or adjust chain slack with rear wheel in this
"tight chain" position.
3-25
INSP
ADJ