Yamaha TT-R125(S), Owner'S Service Manual

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INSP
ADJ
DRIVE CHAIN SLACK ADJUSTMENT
6. Lubricate:
●
Drive chain
Drive chain lubricant:
SAE 10W-30 motor oil or suit-
able chain lubricants
DRIVE CHAIN SLACK ADJUSTMENT
1. Elevate the rear wheel by placing the
suitable stand under the engine.
2. Check:
●
Drive chain slack
a
In the center between the drive axle
and rear wheel axle.
Out of specification
→
Adjust.
NOTE:
Before checking and/or adjusting, rotate the
rear wheel through several revolutions and
check the slack several times to find the tight-
est point. Check and/or adjust chain slack with
rear wheel in this “tight chain” position.
Drive chain slack:
35 ~ 50 mm (1.4 ~ 2.0 in)
3. Adjust:
●
Drive chain slack
Drive chain slack adjustment steps:
●
Loosen the axle nut 1 .
●
Turn both drive chain pullers 2 the same
amount
a
and adjust them to the stopper
in the same position so that the drive chain
slack is within the specified limits.
CAUTION:
Too small chain slack will overload the
engine and other vital parts; keep the
slack within the specified limits.
●
Tighten the axle nut while pushing down
the drive chain.
T
R
.
.
Axle nut:
60 Nm (6.0 m • kg, 43 ft • lb)