Yamaha T135SE Service Manual page 289

DRIVE CHAIN AND SPROCKETS
3. Install:
9 drive sprocket 1
9 sprocket holder 2
9 Sprocket holder bolt
1
2
4. Lubricate:
9 drive chain
9 master link
5. Install:
9 master link body
9 master link plate
6. Install:
9 master link clip 1
cC
99
The closed end of the master link clip must
face in the direction of drive chain rotation.
99
Never install a new drive chain onto worn
drive chain sprockets; this will dramatically
shorten the drive chains life.
7. Adjust:
9 drive chain slack
cC
Adrive chain that is too tight will overload
the engine and other vital parts, and one that
is too loose can skip and damage the
swingarm or cause an accident. Therefore,
keep the drive chain slack within the speci-
fied limits.
7-59
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CHAS
Recommended lubricant
Engine oil or chain lubricant
suitable for non-O-ring chains
Refer to "ADJUSTING THE DRIVE CHAIN
SLACK" in chapter 3.
Drive chain slack
25–35 mm (0.98–1.38 in)