Drive Belt - HYOSUNG Aquil GV650 Service Manual

2-15 PERIODIC MAINTENANCE

DRIVE BELT

Inspect Interval
Inspect Every 1,000 km.
Visually check the drive belt for the possible defects
listed below. (Support the motorcycle by the jack
or block, turn the rear wheel slowly by hand with the
transmission shifted to Neutral.)
● Edges of the belt for cuts or unusual wear patterns
● Outside ribbed surface of the belt for sign of stone
puncture
● Roots of the belt teeth
● Sign of cracking at the base of the belt teeth
● Common types of belt wear and damage
● Improper belt adjustment
If any defects are found, the drive belt must be
replaced.
Damage to the drive belt means that the pulleys
may also be damaged.
If any defects are found, the pulleys must be
replaced.
▣ ADJUSTMENT OF DRIVE BELT SLACK
● Loosen the axle bolt �.
● Loosen the lock nuts �, �.
● Loosen or tighten both belt adjusters �, � until the
belt has specification of slack in the belt case
inspection hole. The marks �, � on both belt
adjusters must be at the same position on the scale
to ensure that the front and rear wheels are correctly
aligned.
DRIVE BELT SLACK (4.5kg of Force)
When the rear tire is touched the ground
When the rear tire is not touched the ground
● Place the motorcycle on jack or block for accurate
adjustment.
● After adjusting the drive belt, tighten the axle bolt
to the specified torque.
Rear axle bolt : 90~140 N∙m (9.0~14.0 kg∙m)
● Tighten both belt adjuster lock nuts �, � securely.
4.5~5.5 mm
(0.18~0.22 in)
5.0~6.0 mm
(0.20~0.24 in)
NOTE
When replacing the drive belt, replace the
drive belt and pulleys as a set.
�
�
�
�
Engine pulley
Belt case
inspection hole
↑
4.5 kg of Force
�
�
�
Rear pulley
See Table