Drive Chain - Suzuki GSX1200 1999 Service Manual

2-12 PERIODIC MAINTENANCE

DRIVE CHAIN

Inspect Initially at 1 000 km (1 month) and Every 6 000 km
(6 months) thereafter.
Clean and lubricate Every 1 000 km.
Visually check the drive chain for the possible defects listed be-
low. (Support the motorcycle by a center stand, turn the rear wheel
slowly by hand with the transmission shifted to Neutral.)
* Loose pins
* Damaged rollers
* Dry or rusted links
* Kinked or binding links
If any defects are found, the drive chain must be replaced.
NOTE:
When replacing the drive chain, replace the drive chain and sprock-
ets as a set.
CHECKING
• Loosen the axle nut 1.
• Tense the drive chain fully by turning both chain adjuster bolts
2.
• Count out 21 pins (20 pitches) on the chain and measure the
distance between the two points. If the distance exceeds the
service limit, the chain must be replaced.
% Drive chain 20-pitch length % %
% %
Service Limit: 319.4 mm
ADJUSTING
• Loosen or tighten both chain adjuster bolts 2 until the chain
has 20 – 30 mm of slack in the middle between engine and rear
sprockets. The marks 3 on both chain adjusters must be at the
same position on the scale to ensure that the front and rear
wheels are correctly aligned.
• Place the motorcycle on its side-stand for accurate adjustment.
• After adjusting the drive chain, tighten the axle nut 1 to the
specified torque.
( ( ( Rear axle nut: 100 N . m (10.0 kgf-m) ( (
* Excessive wear
* Improper chain adjustment
* Missing O-ring seals
Grease
"O" ring
1 2 3
20 – 30 mm
19 20 21