ATK 1988 406 Kullanıcı El Kitabı - Sayfa 8

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REAR SHOCK
REAR SUSPEl•SIOH SAG
The rear suspension should sag 2-3 inches (51-7&mn) when sitting on the
bike in nonnal riding position. This small sag requirement is due to the
A-Trak chain torque elfminaf:t'r, which increases in usable rear suspension.
From
our experience we recomnend that for motocross racing
2-23f
inches
(51-64nm) of sag is best .For trail riding use up to 3 inches.
Prop the bike up on a center stand so that the rear wheel is off the ground,
thus unloading the rear spring of the bikes weight. Measure the distance
between the center of the axle to the center of the left side na.noer plates
rear attactunent screw as shown on figure 4. This distance is the extended
travel length. Take the bike off the stand and sit on it in your normal
riding positon. Measure the new distance between the center of the axle
to the center of the left side number plates rear attachment screw. This
distance is the usable travel length. Subtract the usable travel length
from the extended travel length and the difference between the
two
is the
suspension sag.
EXTENDED TRAVEL
LEl~GTH
- USABLE TRAVEL LENGTH
EXffNL)ELJ
LENGTH
'OMPRESS£0
~£'NGTH
l
F/Gt/l?E
~
=
SUSPENSION SAG
CONPllESSION
ALJJf/STE,4
Pl<£L0Af)
AtJ./l/STEll
t
t
COMPl?ESSfLJ
LENGTH
'
F!Gt./l?E 5
To achieve your desired suspension sag it will
be
necessary to adjust
the rear shock's preload as
sho~n
on figure
5.
The preload equals the
free length of the rear spring minus the compressed length
of the
spring.
FREE LENGTH
- COMPRESSED LENGTH
=
PRELOAD
6