Yamaha GT1 Service Manual page 65

2)
Remove the rear swing arm shaft nut, pull out
the shaft, and
remove
the rear swing arm.
Q
Shaft
'
Fig. 5-8-2
B. Checking
1) Check the play of the rear swing arm by shak-
ing
it
as shown in Fig. 5-8-3, with the rear
swing arm
installed.
If the play is excessive,
replace the rear swing arm bushing or the rear
swing arm shaft.
Fig. 5-8-3
-59-
2)
3)
CHASSIS -
Rear Swing ~m
Insert the bushing as indicated in Fig. 5-8-4,
and check it for play. If the play is excessive,
replace the bushing.
Fig. 5-8-4
Grease the rear arm shaft periodically.
Replacing Rear Swing Arm Bushings
On motorcycles being used only for on-the-street
riding, rear swing arm bushings should be replaced
every 10,000 km {6,000 miles). The same may not
apply to those used for racing or rough riding.
Replacement should be made according to machine
condition such as excessive play of the rear swing
arm, or hard steering (wander, shimmy or rear wheel
hop), or upon request of the customer.