Mounting Instructions
Öhlins front fork kit FG 331 for Ducati 749/999
© Öhlins Racing AB. All rights reserved. Any reprinting or unauthorized use without the
written permission of Öhlins Racing AB is prohibited. Printed in Sweden.
Öhlins front fork 43
Your Öhlins front fork 43 is an upside down type
front fork featuring the following adjusters.
Compression damping adjuster
Adjustments are made at the bottom of the front
fork leg. Use a 3 mm allen key.
Rebound damping adjuster
Adjustments are made at the top of the fork leg.
Use a 3 mm allen key.
Spring pre-load adjuster
Adjustments are made by turning the nut at the
top of the fork leg. Clockwise for harder adjust-
ment, counter clockwise to release the pre-load.
Use a 17 mm wrench.
NOTE!
When delivered the Öhlins front fork is dialed to
recommended settings for the specific brand and
make of the motorcycle. If you have changed the
settings, check like this:
The adjusters have a normal right hand thread. Turn
the damping adjusters clockwise to fully closed (pos.
zero [0]). Turn counter clockwise to open and count
the clicks until you reach the recommended number
of clicks. See Setup data at page 8.
CAUTION!
Do not use too much force, delicate sealing
surfaces can be damaged.
Rebound damping
adjuster
Compression
damping adjuster
Spring pre-load
adjuster
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
Part No. FG 331. Issued 04 06 22
Setup data
Length 717 mm
Stroke 120 mm
Pre-load 13 mm
Rebound damping adjuster 12 clicks
Compression damping adj. 10 clicks
Checking sag and ride height
Front suspension
F1. Bike on a stand with the
suspension fully extended = ............
F2. Bike on the ground without rider = ............
F3. Bike on the ground with rider = ............
Free sag
F1 - F2 = ............
Ride height
F1 - F3 = ............
Rear suspension
R1.Bike on a stand with the
suspension fully extended = ............
R2.Bike on the ground without rider = ........... .
R3.Bike on the ground with rider = ............
Free sag
R1 - R2 = ............
Ride height
R1 - R3 = ............
Bike on a stand.
F1
R1
Bike on the ground.
F2
R2
Bike with rider on.
F3
R3
Before installation
Öhlins Racing AB can not be held responsible for
any damage whatsoever to front fork or vehicle,
or injury to persons, if the instructions for fitting
and maintenance are not followed exactly.
Similarly, the warranty will become null and void
if the instructions are not adhered to.
WARNING!
1. Installing a front fork, that is not approved
by the vehicle manufacturer, may affect the
stability of your vehicle. Öhlins Racing AB
cannot be held responsible for any personal
injury or damage whatsoever that may oc-
cur after fitting the front fork. Contact an
Öhlins dealer or other qualified person for
advice.
2. Please study and make certain that you
fully understand all the mounting instructions
and the owners manuals before handling this
front fork kit. If you have any questions re-
garding proper installation procedures, con-
tact an Öhlins dealer or other qualified per-
son.
3. The vehicle service manual must be referred
to when installing the Öhlins front fork
Safety signals
Important information concerning safety is
distinguished in this manual by the
following notations:
The Safety alert symbol means:
Caution! Your safety is involved.
WARNING!
Failure to follow warning instructions
could result in severe or fatal injury
to anyone working with, inspecting or
using the suspension, or to bystanders.
CAUTION!
Caution indicates that special pre-
cautions must be taken to avoid dam-
age to the suspension.
NOTE!
This indicates information that is of
importance with regard to procedures.
Öhlins products are subject to continual improve-
ment and development. Consequently, although
these instructions include the most up-to-date
information available at the time of printing, there
may be minor differences between your suspen-
sion and this manual. Please consult your Öhlins
dealer if you have any questions with regard to
the contents of the manual.
NOTE!
During storage and transportation, espe-
cially at high ambient temperature, the oil
and grease used for assembling may run out
inside the packing and damage the
expanded polystyrene packing material. This
is not unusual and is in no way detrimental
to the front fork.
Kit contents
Before installing the front fork, please check the
contents of the kit. If anything is missing, contact
your Öhlins dealer.
Description Pcs. Part No.
Front Fork legs 2 04790-02
Caliper bracket LH 1 01677-45
Caliper bracket RH 1 01677-44
Fender bracket left front 1 01682-26
Fender bracket right front 1 01682-27
Fender bracket rear 2 01682-34
Spacer 2 04785-07
Nut M25x1.25 1 01691-01
Bolt MC6S 5x12 2 01046-34
Bolt MC6S M6x22 2 01046-05
Bolt MF6S M5x12 2 00382-08
Shaft sleeve ø25/32 1 01687-04
Shaft sleeve ø30/32 1 01687-05
Fork crown lower 1 01690-01
Clamp tool 2 03179-01
Sticker 2 00194-10
Owners Manual 1
20
Lower the motorcycle. Apply the front wheel
brake and push the front suspension down, two
or three times. This will put the fork legs in a
parallel position.
NOTE!
Another way is to rotate the wheel as fast as pos-
sible and bring it to a fast stop by braking. This
will bring the legs in correct position.
21
Tighten the wheel shaft and shaft clamps so the
fork legs are in fixed position. Tighten the fender
and caliper brackets. See the Workshop Manual
for tightening torques.
NOTE!
Make sure that all bolts are tightened in correct
torque and that nothing restrains the front fork
when the suspension is beeing compressed or
extended. Check with the Workshope manual of
the motorbike.
WARNING!
Certain modifications can be necessary to install
the Öhlins front fork. It is vital that the mounting
instructions are carefully followed
22
Continue your work with Owners manual, sec-
tion Adjustments.
21
5 Nm
10 Nm
25 Nm
WARNING!
1. It’s advisable to have an Öhlins dealer or other
qualified person to fit your shock absorber.
2. Instructions in the vehicle service manual are
to be followed when changing the shock
absorber.
3. When working on a lifted vehicle it must be
securely supported to prevent it from falling.
Mounting instruction
1
Put the bike om a stand so the front wheel has
ground clearance. Make sure it´s steadily
positioned and will not fall over.
2
Release the brake caliper on each side and let
them hang by the brake hoses.
3
Remove the front wheel, by loosening and pulling
the shaft out.
4
Remove the front fender.
5
Release the attachments of the front fork legs in
the lower and the upper triple clamps.
6
Pull the fork legs out downwards and remove
them from the motorcycle.
NOTE!
When performing operations 7 – 10 do not tighten
the bolts and screws.
01677-44
00382-08
04790-02
04785-07
01682-34
01046-05
01677-45
01687-05
01682-26
01687-04
01691-01
01046-34
01682-27
14
Fit the fender brackets with the bolts supplied.
CAUTION!
Do not overtighten. The legs can be deformed
and cause malfunction
17
Fit the front fender. Use the spacers provided for
the rear fender brackets.
18
Refit the wheel and the front wheel shaft. Use
the shaft nut provided. Do not tighten yet.
19
Fit the brake calipers on both sides.
14
15
Fit the Öhlins front fork legs to the triple clamps.
Do not tighten until the legs are in correct position,
see Note!
NOTE!
The fork legs are to be mounted so that they are
aligned with the top of the upper triple clamp.
16
Tighten first the upper triple clamp than the lower
one to correct torque. See the motorcycle’s
Workshop Manual.
Fender bracket
(1682-26)
Fender bracket
(1682-27)
Fender bracket
(1682-34)
Bolt
(01046-34)
Bolt
(00382-08)
Fork leg
aligned with
top of triple
clamp
Top nut
8
9
10
7
Remove the upper triple clamp and release the
lower triple camp downward, together with the
steering stem.
8
Fix the steering column in a vice by using the
tool provided.
10
Apply some Loctite 270 or equivalent to the
thread and fit the Öhlins triple clamp to the origi-
nal column.
11
Refit the fork column and the triple clamps to the
motorcycle and attach the screw to the upper
triple clamp.
9
Use a hot air gun to heat the triple clamp close to
the column attachment and release the clamp from
the column by unscrewing it. It can be necessary
to give the clamp a beat with a soft head hammer.
12
Fit the shaft sleeve to the right and left fork bot-
tom of the Öhlins front fork..
12
13
13
Fit the brake caliper brackets with bolts supplied.
CAUTION!
It is of greatest importance that you apply some
Loctite 222 or similar to all caliper bracket bolts
before fitting and tightening them.
Sleeve
(01687-04/
01687-05)
Caliper bracket
(01677-45)
Caliper bracket
(01677-44)
-
1
-
2
-
3
-
4
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