HYOSUNG Aquila 250 Service Manual page 82

● Install the primary drive gear and NO.2 gear to the
crankshaft, put in the key to the key groove.
CAUTION
When installing the NO.2 gear, install so that the
mark on the gear align the key groove as shown
in figure.
CAUTION
Pay attention to the two washer to lower end of the
primary drive gear nut in times of assemblage.
● With the magneto rotor held immovable using special
tool, tighten the primary drive gear nut.
Conrod holder : 09910-20115
Primary drive gear nut
: 40~60 N∙m(4.0~6.0 kg∙m)
◉ PRIMARY DIRVEN GEAR
NOTE:
Apply engine oil to the inside surface of the primary
driven gear bearing.
● Install the primary driven gear assembly.
ENGINE 3-44
Align the key groove and mark.
↓
No.2 Gear