Suspension, Steering And Swing Arm - Yamaha LB50IIAC Service Manual

Suspension, steering and swing arm
1. Steering head adjustment
The steering assembly should be check-
ed periodically for any looseness. Do
this as follows:
a. Block machine up so that front wheel is
off the ground.
b. Grasp bottom of forks and gently rock
fork assembly backward and forward,
checking for any looseness in the steer-
ing assembly bearings.
c. If steering head needs adjustment,
loosen steering fitting bolt.
d. Using steering nut wrench, adjust steer-
ing head fitting nut until steering head is
tight without binding when forks are
turned.
N O T E : - - - - - - - - - - - -
Excessive tightening of this nut will
cause rapid wear of ball bearings and
races.
Re-check for looseness and freedom of
movement.
e. Tighten steering fitting bolt.
N O T E : - - - - - - - - - - - -
After completing steering adjustment,
make certain forks pivot from stop to
stop without binding. If binding is notic-
ed, repeat adjustment.
2. Suspension
a. Check all suspension for proper opera-
tion.
b. Check all suspension for proper
tightness.
c. Check rear shocks ( R and L) for identical
adjustment.
3. Swing arm
a. Check for freedom of up and down
movement.
b. Check side to side free play.
Swing arm free play:
0.5 mm at end of swing arm
c. Check all securing bolts for proper
tightness.
d. Grease swing arm periodically.
1 Steering fitting bolt
136018
-45-