Yamaha YFM7FGPW Service Manual page 219

PRIMARY AND SECONDARY SHEAVES
4. Install:
• spring seat
• compression spring
• spring seat
• nut
M MMM M MMM M M MMM M
a. Attach the sheave fixed block, locknut
wrench and sheave spring compressor to
the secondary sheave.
Sheave fixed block
90890-04135
Sheave fixed bracket
YM-04135
Locknut wrench
90890-01348, YM-01348
Sheave spring compressor
90890-04134, YM-04134
b. Place the sheave fixed block in a vise and
secure it.
c. Tighten the sheave spring compressor nut
1 and compress the spring.
d. Install the nut 2 and tighten it to the speci-
fied torque using the locknut wrench.
Nut
90 Nm (9.0 m · kg, 65 ft · lb)
e. Remove the sheave spring compressor,
locknut wrench, and sheave fixed block.
L LLL L LLL L L LLL L
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ENG
M MMM M M MMM M M MMM M MMM
L LLL L L LLL L L LLL L LLL