6-26
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
5
6
7
8
9
EAU03526
To adjust the drive chain slack
1. Loosen the brake pedal free play
adjusting nut and the axle nut.
2. To tighten the drive chain, turn
the adjusting plate on each side
of the swingarm in direction
a
.
To loosen the drive chain, turn
the adjusting plate on each side
of the swingarm in direction
b
,
and then push the rear wheel for-
ward.
NOTE:
Make sure that both adjusting plates
are in the same position for proper
wheel alignment.
1.
Axle nut
2.
Chain adjusting plate
3.
Rear brake pedal free play adjusting nut
2
1
a
b
3
EC000096
c
C
Improper drive chain slack will
overload the engine as well as
other vital parts of the motorcycle
and can lead to chain slippage or
breakage. To prevent this from
occurring, keep the drive chain
slack within the specified limits.
3. Tighten the brake pedal free play
adjusting nut, and then tighten
the axle nut to the specified
torque.
4. Adjust the brake pedal free play.
(See page 6-21 for brake pedal
free play adjustment proce-
dures.)
EW000103
w
After adjusting the brake pedal
free play, check the operation of
the brake light.
EAU01106
Lubricating the drive chain
The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly
wear out, especially when riding in
dusty or wet areas. Service the drive
chain as follows.
EC000097
c
C
The drive chain must be lubricated
after washing the motorcycle or
riding in the rain.
1. Remove all dirt and mud from
the drive chain with a brush or
cloth.
2. Spray a drive chain lubricant on
both sides and on the middle of
the chain, making sure that all
side plates and rollers have been
sufficiently oiled.
NOTE:
For a thorough cleaning, have a
Yamaha dealer remove the drive
chain and soak it in solvent.
Tightening torque:
Axle nut:
90 Nm (9.0 m·kg)
5EK-9-E2 (TW125)<3.3Passport> 5/23/00 9:47 AM Page 55