CHAIN DRIVE
4-32
EAM20104
CHAIN DRIVE
EAM30075
REMOVING THE DRIVE CHAIN
1. Stand the vehicle on a level surface.
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
TIP
Place the vehicle on a maintenance stand so
that the rear wheel is elevated.
2. Remove:
•
Drive chain
TIP
Cut the drive chain with the drive chain cut & riv-
et tool. (Use goods on the market.)
EAM30076
CHECKING THE DRIVE CHAIN
1. Measure:
•
15-link section of the drive chain
Out of specification
Replace the drive
chain.
a. Measure the length “a” between the inner
sides of the pins and the length “b” be-
tween the outer sides of the pins on a 15-
link section of the drive chain as shown in
the illustration.
b. Calculate the length “c” of the 15-link sec-
tion of the drive chain using the following
formula.
Drive chain 15-link section length “c” =
(length “a” between pin inner sides +
length “b” between pin outer sides)/2
TIP
•
When measuring a 15-link section of the drive
chain, make sure that the drive chain is taut.
•
Perform this procedure 2–3 times, at a different
location each time.
2. Check:
•
Drive chain
Stiffness
Clean, lubricate, or replace.
3. Clean:
•
Drive chain
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and re-
move any remaining dirt.
c. Remove the drive chain from the kerosene
and completely dry it.
NOTICE
ECA19090
• 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.
15-link length limit
239.3 mm (9.42 in)
Summary of Contents for WR250F 2023
Page 8: ......
Page 15: ...LOCATION OF IMPORTANT LABELS 1 5...
Page 16: ...LOCATION OF IMPORTANT LABELS 1 6 AUS NZL ZAF EUR...
Page 56: ...TIGHTENING TORQUES 2 15...
Page 90: ...ELECTRICAL SYSTEM 3 32...
Page 138: ...FUEL TANK 6 3...
Page 146: ...ELECTRICAL COMPONENTS 7 7...
Page 160: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 8 13...
Page 170: ...CHASSIS 9 9...
Page 172: ...PRINTED IN JAPAN E...