Checking The Drive Chain - Yamaha YFZ450S 2003 Service Manual

SWINGARM AND DRIVE CHAIN
EBS00496

CHECKING THE DRIVE CHAIN

1. Measure:
NOTE:
_
• While measuring the 15-link section, push
• Measure the length between drive chain
• Perform this measurement at two or three
2. Check:
3. Clean:
M
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and remove
c. Remove the drive chain from the kerosene
_
This machine has a drive chain with small
rubber O-rings 1 between the drive chain
side plates. Never use high-pressure water
or air, steam, gasoline, certain solvents
(e.g., benzine), or a coarse brush to clean
the drive chain. High-pressure methods
could force dirt or water into the drive
chain's internal parts, and solvents will
deteriorate the O-rings. A coarse brush can
also damage the O-rings. Therefore, use
only kerosene to clean the drive chain.
Don't soak the drive chain in kerosene for
more than ten minutes. Kerosene will dam-
age the O-rings.
L
7 - 67
• 15-link section a of the drive chain
Out of specification → Replace the drive
chain.
15-link drive chain section limit
(maximum)
240.5 mm (9.47 in)
down on the drive chain to increase its ten-
sion.
roller 1 and F as shown.
different places.
• drive chain
Stiffness → Clean and lubricate or replace.
• drive chain
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any remaining dirt.
and completely dry it.
CAUTION:
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CHAS
M M MMM M M MMM M
L L LLL L L LLL L
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