Removing The Drive Chain; Checking The Drive Chain - Yamaha MT-03 Service Manual

EAS23410

REMOVING THE DRIVE CHAIN

1. Stand the vehicle on a level surface.
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that
the rear wheel is elevated.
2. Remove:
• Swingarm
• Drive chain
EAS23440

CHECKING THE DRIVE CHAIN

1. Measure:
• 15-link section "a" of the drive chain
Out of specification
chain.
15-link length limit
240.5 mm (9.46 in)
NOTE:
• While measuring the 15-link section, push
down on the drive chain to increase its ten-
sion.
• Measure the length between drive chain roller
"1" and "16" as shown.
• Perform this measurement at two or three dif-
ferent places.
2. Check:
• Drive chain
Stiffness Clean and lubricate or replace.
Replace the drive
4-68
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.
EC5YU1022
CAUTION:
• This vehicle 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 internals, and solvents will deterio-
rate the O-rings. A coarse brush can also
damage the O-rings. Therefore, use only
kerosene to clean the drive chain.
• Do not soak the drive chain in kerosene for
more than ten minutes, otherwise the O-
rings can be damaged.
CHAIN DRIVE