Honda CG125 Fan Owner's Manual page 123

52
Adjustment
Drive chain slack should be checked and adjusted, if
necessary, every 1,000 km (600 miles). When operated
at sustained high speeds or under conditions of
frequent rapid acceleration, the chain may require more
frequent adjustment.
(3)
(2)
If the drive chain requires adjustment, the procedure is
as follows:
1. Place the motorcycle on its side stand with the
transmission in neutral and the ignition switch off.
2. Loosen the rear axle nut (1).
3. Loosen the drive chain lock nuts (2) and adjusting
nuts (3).
4. Turn both adjusting nuts (3) an equal number of
turns until the correct drive chain slack is obtained.
Turn the adjusting nuts clockwise to tighten the
chain, or counterclockwise to provide more slack.
Adjust the chain slack at a point midway between
the drive sprocket and the rear wheel sprocket.
(1) Rear axle nut
(2) Drive chain lock nut
(5)
(3) Adjusting nut
(4) Index mark
(5) Corresponding scale
(4)
(1)
Roll the motorcycle forward. Stop and place it on its
side stand. Recheck chain slack.
Chain slack should be:
10 – 20 mm (0.4 – 0.8 in)
5. Check rear axle alignment by making sure the chain
adjuster index marks (4) align with the
corresponding scale (5) graduations on both sides
of the swingarm.
6. Tighten the rear axle nut to specified torque.
Rear axle nut torque:
88 N·m (9.0 kgf·m, 65 lbf·ft)
If a torque wrench is not used for this installation, see
your Honda dealer as soon as possible to verify proper
assembly.
7. Tighten the adjusting nuts lightly, then tighten the
lock nuts by holding the adjusting nuts with a
spanner.
8. Recheck drive chain slack.
9. Rear brake pedal free play is affected when
repositioning the rear wheel to adjust drive chain
slack. Check rear brake pedal free play and adjust
as necessary (page 19).
Damage to the bottom part of the frame may be
caused by excessive drive chain slack of more than:
50 mm (2.0 in)
Owner´s Manual