Sym PA12B User Manual

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2. Maintenance Information
Drive Chain Adjustment
2-13
Drive chain inspection.
Place the bike on its main-stand with its
neutral gear.
Check the drive chain slack by moving
the chain up and down by fingers, and
measure the amount of chain slack.
Standard chain slack：10~20 mm
Caution:
z Because the front and rear sprocket has
different wearing situation, so please
rotate the rear wheel to find the minimum
chain slack for the measurement.
Drive chain adjustment
If you need to adjust the chain slack, please
loosen the rear axle nut and sleeve nut first.
Turn the left side and the right side
adjusting nut evenly to make the chain slack
within the standard range. (Turn the nuts
clockwise to tighten the chain, or
counterclockwise to loosen the chain)
Tighten the sleeve nuts, then the rear axle
nut.
Torque value：4.0~5.0kgf-m
After tightening the rear axle nut, please
check the sleeve nuts to prevent them from
loosening.
Check the chain slack again, and make
sure the rear wheel rotates smoothly.
If the chain is too dirty, use high-flash point
solvents to clean the chain. (Kerosene or
Diesel.)
Caution:
y Don’t use gasoline when cleaning the
chain. The gasoline will damage the
O-ring in the chain.
10~20 mm
After cleaning, lubricate the chain with chain
lubricant.
Sleeve nut
Rear axle nut
Adjusting nut

Sym PA12B Specifications

General

Brand	Sym
Model	PA12B
Category	Motorcycle
Language	English