Checking Wheel Alignment
●Check whether the position of the concave scale line [B] on the
right chain adjuster [A] on the rear swing arm [C] is the same as that
of concave scale line on the left chain adjuster.
★If they are not aligned, adjust the slackness of drive chain and
align the wheel alignment (see “Adjusting Slackness of Drive
Chain”).
○Check whether the wheel alignment is accurate with the ruler
or rope.
If the wheels are not aligned, the wheels will be worn out
abnormally and there may be dangers during riding.
Checking Wear of Drive Chain
●Remove the chain guard (see “Disassembling Drive Chain” in
“Final Drive Mechanism” chapter).
●Rotate the rear wheel and check whether there are damaged rollers,
loose cotter pins and chain meshes.
★If any abnormal situation is found, replace the drive chain.
★If the drive chain looks dry, add the lubricant.
●Hang a 10 kg weight on the drive chain to tighten the drive chain.
●Measure the length of the 20 links [B] (from the center of the first
cotter pin to the center of the 21st cotter pin) of the drive chain of
the straight part [C]. As the drive chain is worn unevenly, the
measurement shall be carried out in several different parts.
★If any measured value exceeds the service limit, the drive chain
needs to be replaced. Replace the front and rear sprockets
simultaneously.
Length of 20 chain meshes of drive chain
Standard: 317.5-318.2 mm
Service limit: 323 mm
Warning
If the wear of drive chain exceeds the service limit, the drive
chain must be replaced, otherwise there may be dangers during
riding. If the drive chain is broken or falls off from the
sprocket, the sprocket of engine will be tripped or the rear
wheel will be locked, which will cause serious damage to the
motorcycle and make it be out of control.
To ensure s
afety, the standard drive chain must be used. The
standard drive chain is a chain without meshes which cannot
be cut off during installation.
Standard Drive Chain
Model: 520HO
Number of chain meshes: 118
2-31
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