Yamaha BR250F Service Manual page 124

To tighten the fixed sheave, high torque is
required. Therefore, make sure the primary
sheave, vise and special tools are placed
securely also take care not to crack the fixed
sheave.
Tightening torque:
200 Nm (20.0
rn-
kg, 145 ft·lb)
1. Fixed sheave stopper
4. I nstall the (oilers and weights into the
sliding. sheave and spider.
Torque the roller securing bolts to
specification.
NOTE: _
1.
Be sure there is a washer on each side of
the roller and weight.
2. The bolt head must be to the right of the
roller as show in the illustration.
Tightening torque:
5 Nm (0.5 m- kg, 3.6 ft-Ib)
1. Washer 2. Weight
3. Roller 4. Bolt
5. Turning direction
-11-
5. Install the primary sheave cap onto the
spider as shown.
NOTE: _
1.
Before installing the primary sheave cap,
use molybdenum sprays liberally on the
weights.
2. Be sure the IIX" on the sheave cap aligns
with the
"X"
on the spider.
6. Secure the primary sheave cap with
the securing bolts. Torque the bolts to
specification.
NOTE: _
Check the movement of the sliding sheave. If
it is not smooth, disassemble the primary
sheave. Then, reassemble it correctly.
Tightening torque:
14 Nm (1.4
rn-
kg, 10 ft-Ib)