Ohlins HO673 Mounting Instruction

Ohlins
Brand
Ohlins
Model
HO673
Type
Mounting Instruction

Ohlins HO673 is a high-performance shock absorber kit designed to enhance the handling and stability of your Honda TRX 450 ATV. It features adjustable spring pre-load, compression damping (high and low speed), and rebound damping, allowing you to fine-tune the suspension to suit your riding style and terrain conditions. The kit includes a C-spanner for easy adjustment and a spring clip to secure the spring in place. Installation requires some mechanical knowledge and tools, and it's recommended to consult the Öhlins Owner's Manual for detailed instructions.

Ohlins HO673 is a high-performance shock absorber kit designed to enhance the handling and stability of your Honda TRX 450 ATV. It features adjustable spring pre-load, compression damping (high and low speed), and rebound damping, allowing you to fine-tune the suspension to suit your riding style and terrain conditions. The kit includes a C-spanner for easy adjustment and a spring clip to secure the spring in place. Installation requires some mechanical knowledge and tools, and it's recommended to consult the Öhlins Owner's Manual for detailed instructions.

Kit Contents
Shock absorber HO 673 1
C-spanner 00710-02 1
Spring clip 00516-01 1
Öhlins Sticker 00197-01 2
Memo Notes Sticker 01180-01 1
Owner’s Manual ATV 07235-01 1
NOTE!
No spring included in this kit! See
spring recommendation in this
manual. Consult your Öhlins dealer.
Öhlins Racing AB, Box 722, S-194 27 Upplands Väsby, Sweden.
Phone +46 8 590 025 00. Fax +46 8 590 025 80.
www.ohlins.com
© Öhlins Racing AB. All rights reserved. Any reprint-
ing or unauthorized use without the written permis-
sion of Öhlins
Racing AB is prohibited.
Printed in Sweden.
Mounting Instructions
ADJUSTMENTS
Low speed
compression
adjustment
High speed
compression
adjustment
-
-
+
+
Spring pre-load
Use the C-spanner provided in this kit.
Turn the spring platform nut (1a) to set the
spring pre-load. Lock the setting with the
lock nut (1b).
Compression damping
Adjust on top of the reservoir.
Low speed: Slotted centre screw.
High speed: Hexagon screw.
Rebound damping:
Adjust by turning the wheel on the
piston shaft above the end bracket. Turn
clockwise to increase rebound damping,
turn counter clockwise to decrease it.
NOTE!
When delivered the Öhlins shock absorber is
dialed to recommended settings for the spe-
cifi c brand and make of the vehicle. Before rid-
ing, always make ensure that the basic settings
made by Öhlins are intact.
To set the adjuster:
The turn adjusters have a normal right hand
thread. Turn the damping adjusters clock-
wise to fully closed (position zero [0]). Then,
turn counter clockwise to open, and count
the clicks until you reach the recommended
number. See Set-up data.
1
2
3
3
2
SET-UP DATA
Rebound damping 25 clicks
Compression damping
Low speed 15 clicks
High speed 1½ turn
Spring pre-load 0 mm
Shock absorber data
Shock absorber length 387 mm
Stroke 98 mm
Free sag and Ride height
Free sag, front 60 ± 5 mm
2½ ± ¼ “
Free sag, rear 30 ± 5 mm
1 ¼ ± ¼ “
Ride height, front 80 ± 5 mm
3 ¼ ± ¼ “
Ride height, rear 105 ± 5 mm
4½ ± ¼ “
Öhlins shock absorber kit HO 673
for HONDA TRX 450 - rear
WITH SET-UP DATA
Before installing this product,
check the contents of the kit listed
below. If anything is missing, please
contact your nearest Öhlins dealer.
During storage and transportation,
especially at high ambient tempera-
ture, some of the oil and grease used
for assembling may leak and stain
the packaging. This is in no way det-
rimental to the product, wipe off the
excessive oil/grease with a cloth.
I
ns
tal
l
in
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a
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a
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o
rb
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Spring guide
Rider’s weight Spring part no. Spring rate
75kg/ 165 lbs Standard swingarm 00580-12 58N/mm
85kg/ 187 lbs Standard swingarm 00580-14 60N/mm
95kg/ 209 lbs Standard swingarm 00580-16 64N/mm
Read the Öhlins Owner’s Manual before installing this product
Mounting Instructions HO673_4 Issued 2007 01 24
These instructions and other documents can be
downloaded from www.ohlins.com
1a
1b
CAUTION!
Do not use force, delicate sealing surfaces can
be damaged. Handtighten only!
INSTALL THE SPRING
1
Remove the seat.
2
Raise the rear end of the vehicle so that the
original shock absorber is in an unloaded
position.
CAUTION!
Do not apply lifting force to the swing arm.
Make sure the vehicle is securely supported so
that it will not fall over.
3
Remove the original shock absorber.
NOTE!
Remove the lower bolt of the triangle link so
that the lower bolt of the shock absorber can
be removed.
NOTE!
Before installing the shock absorber, make sure
that the correct spring is installed.
3
Remove
bolt
Fold out
the arm
Triangle link
Lower shock
absorber bolt
4
Install the Öhlins shock absorber in the same
position as the original unit. Fasten the upper
attachment fi rst.
NOTE!
The piggy back reservoir should be at the top,
towards the rear and slightly to the left.
5
Fasten the lower attachment. Raise the
wheels slightly to make the attachment fi t.
Reattach the triangle link!
Side view
Chamfered side
downwards!
5
Triangle link
!
2
CAUTION!
1
4
3
5
CAUTION!
Make sure that the chamfered side of the end
bracket is pointing downwards, or the move-
ment can be restricted!
6
Tighten the attachment screws to the correct
torque. Consult your ATV Owner’s Manual.
7
Check sag and ride height according to the
Öhlins Owner’s Manual. See also Set-up data
in this manual.
NOTE!
Make sure that all bolts are tightened to
the correct torque and that nothing fouls or
restricts movement of the shock absorber
when the suspension is being fully compressed
or extended.
INSTALL THE SHOCK ABSORBER
NOTE!
Before installing the shock absorbers on the
vehicle you need to install the correct springs.
See spring guide in this manual.
Lock nut
Spring
platform
Washer
Spring
Spring clip
A
4
Spring pre-load
Set the spring pre-load before installing the
shock absorber to the vehicle.
Use the C-spanner provided in this kit. Turn the
spring platform nut clockwise to set the spring
pre-load. Turn counter clockwise to release.
Lock the setting with the lock nut.
A
A - B = Pre-load
B
1
Measure the free length of the spring (A). Loosen
the lock nut and turn it to minimum position.
2
Turn the shock absorber upside down. Install the
washer, spring and then the spring clip.
3
Turn the shock absorber upright. Now turn the
spring platform nut down to touch the spring.
Do not compress the spring.
CAUTION!
Make sure the spring clip is seated correctly
inside the spring and on the shaft.
1
2
3
See Set-up data in this manual for
pre-load recommendations.
4
CAUTION!
  • Page 1 1
  • Page 2 2

Ohlins HO673 Mounting Instruction

Ohlins
Brand
Ohlins
Model
HO673
Type
Mounting Instruction

Ohlins HO673 is a high-performance shock absorber kit designed to enhance the handling and stability of your Honda TRX 450 ATV. It features adjustable spring pre-load, compression damping (high and low speed), and rebound damping, allowing you to fine-tune the suspension to suit your riding style and terrain conditions. The kit includes a C-spanner for easy adjustment and a spring clip to secure the spring in place. Installation requires some mechanical knowledge and tools, and it's recommended to consult the Öhlins Owner's Manual for detailed instructions.

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