Yamaha YFM90RA Model Vehicle User Manual


 
CHAS
6 - 47
EBS00496
CHECKING THE DRIVE CHAIN
1. Measure:
• 15-link section of the drive chain
Out of specification Replace the drive
chain.
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.
15-link drive chain section limit
(maximum)
239.3 mm (9.42 in)
REAR SHOCK ABSORBER, SWINGARM AND
DRIVE CHAIN
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.