YCF 50 A 2017 Manuel De L'utilisateur page 143

Drive Chain Adjustment
Should the visual inspection reveal an unacceptable amount of slack in your chain, it means that the looser or
tighter sections need to be adjusted. Please follow the instructions below to adjust accordingly:
( A ) Axle nut
( B ) Lock nut
( C ) Chain-adjuster bol
Chain Slack Adjustment
1. Loosen the axle nut (A).
2. Loosen the chain adjuster lock nuts (B) on both sides of the swingarm with a wrench.
3. Turn the chain-adjuster bolts (C) on both sides of the swingarm clockwise an equal number of turns
to increase tension or counter-clockwise to decrease it.
4. Tighten the chain adjuster lock nuts on both sides of the swingarm.
5. Re-measure the chain slack.
Warning
Never ride your Mini-Motorbike when the drive chain is worn out or improperly adjusted. Failure to
consider this warning can lead to, among other things, the chain jumping off the sprockets or getting
caught on moving motorbike parts, with subsequent serious injury or even death.
A
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English
DRIVE CHAIN
B
C