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Xmotos XB21A 2018 Operating Instructions Manual page 44

Dirt bike, pitbike

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Follow the procedure below to adjust the drive chain slack. Be sure that you are parked on a level surface
and the engine is turned OFF.
1. Loosen the rear axle nut
2. Loosen the lock nut
3. Turn the adjusting bolts
decrease slack in the chain, or clockwise to increase
slack.
4. Make sure the gap
and swing arm are the same on both left and right sides.
5. Tighten the axle nut
6. Re-check chain slack and readjust if necessary.
Commercially prepared chain lubricants may be purchased
at most motorcycle shops and should be used instead of
motor oil. Chain lube or gear oil (80w or 90w) is
recommended.
Saturate each joint so that the lubricant penetrates the
space between each surface of the link plates and rollers.
44
on both right and left side.
counter-clockwise to
between the adjusting plate
to 85ft-lbs. (115 Nm)

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