Fantic XX 125, Руководство по эксплуатации и обслуживанию

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3. Adjustments
USE AND MAINTENANCE MANUAL CHAPTER 3
ADJUSTMENTS 2-Strokes - Edition 01 / 2023
108
1
2
3
Chain tension adjustment
– Place a kickstand or a stand under the engine to raise the
rear wheel off the floor;
– Place the gearshift in neutral;
– Loosen the wheel axle nut “1”,
– Loosen the locknut “2” on both sides;
– Turn the adjusting bolt “3”, on both sides, until the specified
chain tension is achieved;
To maintain the correct alignment of the rear wheel,
carry out the adjustment by acting evenly on both
adjusters.
– Once the correct tension is achieved, tighten the rear wheel
axle nut to the specified torque;
– Tighten the locknuts of the drive chain adjusters.
While tightening the wheel axle nut, push the
wheel forward to ensure that there is no clearance
between the adjusters and the wheel axle plates.
Rear wheel axle nut:
125 Nm (12.5 m•kg, 92 ft•lb)
Chain adjusters locknut:
19 Nm (1.9 m•kg, 14 ft•lb)
3.11 CHAIN TENSION
If the drive chain is too tight, it will overload the
engine and other vital parts, and if it is too loose it
may jump and damage the swingarm or cause an
accident. Therefore it is recommended to keep the
chain tension within the specified limits.
Chain tension check
– Place a kickstand or stand under the engine to raise the
rear wheel off the floor;
– Place the gearshift in neutral;
– Lift the drive chain off the swingarm, close to the chain
guide fixing bolt;
– Measure the tension between the guide and the bottom of
the chain, as shown in the figure;
Transmission chain tension:
48.0 - 58.0mm (1.89 - 2.28 in)