Yamaha YZ85(T) Owner's Service Manual page 494

EC72C001
Choosing set length
1. Place a stand or block under the engine to
put the rear wheel above the floor, and
measure the length a between the rear
wheel axle center and the rear fender hold-
ing bolt.
5PA70160
2. Remove the stand or block from the engine
and with a rider astride the seat, measure
the sunken length b between the rear
wheel axle center and the rear fender hold-
ing bolt.
5PA70170
3. Loosen the locknut 1 and make adjust-
ment by turning the spring adjuster 2 to
achieve the standard figure from the sub-
traction of the length b from the length a.
5PA70180
NOTE:
If the machine is new and after it is broken in,
G
the same set length of the spring may
change because of the initial fatigue, etc. of
the spring. Therefore, be sure to make re-
evaluation.
If the standard figure cannot be achieved by
G
adjusting the spring adjuster and changing
the spring set length, replace the spring with
an optional one and make re-adjustment.
7 - 15
T U N
SETTING
Standard figure:
75 ~ 85 mm (3.0 ~ 3.3 in)