29
3
Adjuster
housing
Adjuster
cable
3
Remove the adjuster cable from the adjuster
housing. Release the track tension. Remove the
bolts and then the skid frame from the vehicle.
NOTE!
Before the adjuster cable is removed the adjuster
must be turned to hardest damping force.
Reposition the bolt to
face rearwards
Limiter
strap
Front
Correct fi tting of
the bolts, washers
and nuts
6
Loosen the front and rear attachment bolts
and remove the original shock absorber from
the skid frame.
NOTE!
Change the position of one bolt at a time to
ensure you refi t the bolts in the original holes
on the limiter straps.
Mounting Instructions
WARNING!
1. It is advisable to have an Öhlins dealer
or other qualifi ed person install the shock
absorber.
2. Follow the instructions in the vehicle service
manual when changing the shock absorber.
3. When working on a raised vehicle, make
sure that it is securely supported to prevent
it from falling.
!
1
NOTE!
Before you start, please follow the dismantling
instructions in the Yamaha Work Shop manual.
1
Loosen, but do not yet remove, the two skid
frame attachment bolts on each side of the
snowmobile. Remove the left side cover above
the foot rest. See also, fi gure on page 1.
NOTE!
The side cover is attached with four screws and
a rubber mount. One of the screws is located
under the seat.
2
Carefully tip the snowmobile on its side. To pre-
vent fuel leaks, clamp the fuel tank vent hose. It
is recommended that you use a handlebar stand
or equivalent to help hold the machine and thus
avoid damaging it.
E
X
T
R
E
M
E
E
N
G
I
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E
E
R
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G
42
35
You can instantly optimize adjustments to suit
your individual way of riding and the condition
of the trail.
The electronically controlled compression damp-
ing is set with the control panel of the electronic
unit.
NOTE!
Read more about basic setting procedures in
your Öhlins Owner’s manual.
EC – Electronic Control Settings
Pressing
the plus
(+) button
increases
damping
Pressing
the minus
(-) button
decreases
damping
Press the Öhlins button once for voltage reading.
Press again to turn the voltage reading off.
Read more about the EC unit in your Öhlins
Owner’s manual.
WARNING!
Do not alter the damping when riding. The
snowmobile must come to a stop before the
damping is set. To avoid dangerous situations,
do not take your eyes and attention off your
surroundings.
!
When the snowmobile is restarted the adjusters
will return to the earlier chosen positions. If the
power supply fails there is always a damping
force in the shock absorber, to allow for safe
riding.
CAUTION!
Make sure the tie wraps are not interfering with
any movable parts, when attaching the wires.
No power to the front damper
Does not apply for the YA 563 shock
absorber
No power to the rear damper
Measures: Make sure the damper is
connected. Check wires and connec-
tions for damages.
No power to the front and rear
dampers
Does not apply for the YA 563 shock
absorber
Insufficient voltage to the control
unit
Measures: Check battery and alternator.
Check all connections.
4
Compress the front part of the rear suspen-
sion so that the limiter strap is no longer
tight.
A tip: Put a large piece of wood under the
front part of the rear suspension to raise it, and
thereby loosen the tension of the limiter strap.
5
Remove the two lower bolts of the limiter
strap.
Remove the two lower bolts
of the limiter strap.
CAUTION!
Make sure that the threads on the limiter strap
bolts are not facing towards the shock absorber,
they may cause damage to it. If they are fac-
ing towards the shock absorber, change their
position so that the threads are facing in the
opposite direction.
The control unit
Damping
force
Electrical
voltage
Troubleshooting
Er1
Er 2
Er 3
Er 4 -
Er7
!
5
4