Öhlins Racing AB
Box 722
S-194 27 Upplands Väsby, Sweden
Phone +46 8 590 025 00
fax +46 8 590 025 80
© Öhlins Racing AB. All rights
reserved. Any reprinting or
unauthorized use without the written
permission of Öhlins Racing AB
is prohibited.
www.ohlins.com
Öhlins products are subject to
continuous improvement and
development, therefore, although
these instructions include the most
up-to-date information available at
the time of printing, minor updates
may occur.
To find the latest information contact
your Öhlins distributor. Please
consult your Öhlins dealer if you
have any questions regarding the
contents in this document.
Shock Absorber for ATV Yamaha YFZ 450R Front
BB 971
Mounting Instructions
Part No Pcs
Shock absorber BB 971 2
C-spanner 00710-01 2
Öhlins Sticker 00197-01 2
Memo Notes Sticker 01180-01 1
Owner’s Manual ATV 07235-01 1
Before installing this product, check the
contents of the kit. If anything is missing, please
contact your nearest Öhlins dealer.
Kit Contents
Recommended set-up
Rebound damping 14 clicks
Compression damping 14 clicks
Shock absorber data
Length 433 mm
Stroke 141 mm
Spring set-up
Long spring 06390-06
Spring rate 27-36 N/mm
Short spring 04060-40
Spring rate 40 N/mm
Total spring preload 2 mm
Cross-over 20 mm
Free sag and Ride height
Free sag, front 60±5 mm
2½±¼’’
Free sag, rear 30±5 mm
1¼±¼’’
Ride height, front 80±5 mm
3¼±¼’’
Ride height, rear 105±5 mm
4½±¼’’
Set-up Data
Please note that during storage and
transportation, especially at high ambient
temperature, some of the oil and grease used for
assembling may leak and stain the packaging.
This is in no way detrimental to the product,
wipe off the excessive oil/grease with a cloth.
Part no. BB971_0
Issued 2009-02-25
Warning!
Before installing this product, read the Öhlins
Owner’s Manual. The shock absorber is an
important part of your vehicle and may affect the
stability.
1 2
How to Install Adjustments
Warning!
It is advisable to have an Öhlins dealer install the
shock absorber.
When installing, consult your Vehicle Service
Manual.
1
Raise the front end of the vehicle so that
the original shock absorbers are in a neutral
position.
Warning!
Make sure the vehicle is securely supported so
that it will not tip.
2
Remove the original shock absorbers.
3
Install the Öhlins shock absorbers in the
same positions as the original units. Fasten
the upper attachment rst. The piggy back
reservoirs should be at the top and facing
outwards.
4
Fasten the lower attachment. Raise or lower
the wheels slightly to make the attachment t.
1
4
3
5
Tighten the attachment screws to the correct
torque. Consult your ATV Owners manual.
6
Check sag and ride height according to the
Öhlins owners manual. See also Set-up data
for this specic shock absorber kit on the
next page.
Caution!
Make sure that all screws are tightened to the
correct torque and that nothing fouls or restricts
movement of the shock absorber when the
suspension is fully compressed or extended.
Warning!
Before riding, always make sure that the
basic settings made by Öhlins are according
to recommended Set-up Data. Read about
adjustments and setting up in the Öhlins
Owner’s Manual before you make any
adjustments. Contact an Öhlins dealer if you
have any questions about setting up the shock
absorber.
Rebound and Compression Damping
Use an allen key. Turn the adjuster clockwise
to increase the damping, turn counter
clockwise to decrease it.
To Reset the adjuster
Turn the adjuster clockwise to fully closed
position (position zero [0]). Then, turn counter
clockwise to open, and count the clicks
until you reach the recommended number of
clicks. See recommended Set-up data in the
Mounting Instructions for the shock absorber.
Caution!
Do not use force, delicate sealing surfaces can
be damaged. Handtighten only.
Note!
Read more about adjustments in the Öhlins
Owner’s Manual.
Spring Preload
Adjuster
Rebound
Damping
Adjuster
(Black)
Compression
Damping
Adjuster
(Gold)
-
1
-
2
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