parallel to the ground.
Increase or decrease
the rear shock absorber
spring preload to achieve
parallelism. Another
reference is the axle and
swingarm pivot point
(See fi gure 13)
. Again,
the motorcycle must be
loaded with rider passenger
and all gear. If the axle is
higher than the swingarm
pivot point (3), increase the preload of the shock spring.
Decrease the spring preload when the swingarm pivot
point is higher than the axle (1).
Each revolution of the preload ring is equivalent to
26 ½ pounds. To increase the preload turn the ring in
a clockwise direction. To decrease the preload turn the
ring in a counterclockwise direction
(See fi gure 14)
. To
adjust the shock spring preload use the spanner wrench
available at your Authorized Indian Motorcycle dealer.
Measuring rear suspension sag for a solo
rider
Place a piece of masking tape on the fender directly over
the rear axle
(See fi gure 15)
.
1. Extend the rear shock completely by placing a lift
under the motorcycle and raise until the rear tire is
fully off the ground.
2. Place a piece of masking tape on the fender directly
over the rear axle
(See fi gure 15).
3. Measure the distance from the top of the axle to the
top of the masking tape. Measuring in millimeters and
performing the adjustments in millimeters is much
easier. Write this measurement onto a piece of paper
and label as M1.
4. Lower the motorcycle and remove the lift.
5. Sit on the motorcycle with helmet and all riding gear.
Have another person measure the distance from the
top of the axle to the top of the masking tape. Write
down the measurement and label as M2
6. Subtract M1 from M2. Th
e correct rider sag is
between 27-33mm (1.06˝–1.28˝).
7. Increase the spring preload if the sag is greater than
33mm (1.28˝) and decrease the preload if the sag is
less than 27mm (1.06˝).
Nominal sag is 30mm (1.2˝).
8. Repeat step 5 again after the
preload has been adjusted.
Again subtract M1 from M2.
9. Continue the preload
adjustment until the
sag is within 27-33mm
(1.06˝–1.28˝).
10. Once adjusted, measure the
spring length and record
Features and Safety
Figure 15: Measuring
Suspension Sag
22
Figure 14: Spring Adjustment
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