Checking The Drive Chain - Yamaha Raptor 90 YFM90RA 2011 Service Manual

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REAR SHOCK ABSORBER, SWINGARM AND
DRIVE CHAIN
EBS00496

CHECKING THE DRIVE CHAIN

1. Measure:
• 15-link section
Out of specification → Replace the drive
chain.
15-link drive chain section limit
(maximum)
239.3 mm (9.42 in)
TIP
• While measuring the 15-link section, push
down on the drive chain to increase its ten-
sion.
• Measure the length between drive chain roller
and
as shown.
• Perform this measurement at two or three dif-
ferent places.
2. Check:
• drive chain
Stiffness → Clean and lubricate or replace.
3. Clean:
• drive chain
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and remove
any remaining dirt.
c. Remove the drive chain from the kerosene
and completely dry it.
6 - 47
CHAS
of the drive chain

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