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7

General handling set-up
A

Front end falls into the curves (over-
steering) especially in sand.
Steep front fork angle. Front end too
low in comparison to rear end.

Increas the front fork
compression damping.

Change to harder springs.

Lower fork leg approximately
5 mm in the triple clamp.

B

Front end ”ploughs”, understeers.
Shallow front fork angle. Front end too
high in comparison to rear end.

Decrease the front fork
compression damping.

Raise the fork legs approximately
5 mm in the triple clamp.

Change to softer fork springs.

C

Front end unstable at high speed, un-
stable when accelerating out of curves.
Front fork angle too steep. Front end
too low in comparison to rear end.

Lower the fork legs approximately
5 mm in triple clamp.

Change the front fork springs to
harder ones.

D

Front end unstable during deceleration.
Front fork angle too steep during
braking. Front end too low or rear end
too high.

Increase the oil level in the
front fork.

Change to harder fork springs.

Increase the front fork
compression damping.

Front suspension.

A

Front fork travel is not used to its full
capacity. Harsh feeling, front wheel grip
is not satisfactory in bumpy turns.
Suspension too hard.

Decrease the front fork
compression damping.

Change to softer springs.

B

Suspension bottoming, too soft during
entire travel.
Spring too weak or compression
damping too soft.

Increase oil level 5 mm.

Increase compression damping.

Change to stiffer springs.

C

Suspension bottoming, but can handle
smaller bumps.
Damping force not progressive enough.

Increase the oil level.

D

Can handle smaller bumps but is too
hard during the last part of the travel.
Damping force is too progressive.

Decrease the oil level.

E

Front end feels low, initially feels soft,
but is not bottoming.
The initial spring rate is too soft or spring
preload is too low.

Increase the spring preload.

E

Feels harsh over small bumps, but using
full wheel travel.
Too much spring preload or too much
compression damping.

Increase the oil level or change
to softer springs.

Decrease the compression
damping.

Decrease the spring preload.

Clean the oil seals and scrapers.
Use Öhlins grease 148-01 for
regreasing.

F

Can handle the first in a series of bumps
but feels hard after a few more bumps.
Frontal grip insufficient in rough and
bumpy turns.
Too much rebound damping.

Decrease the rebound damping.

G

Front end rebound too fast after a bump.
Front wheel grip insufficient in bumpy
curves.
Not enough rebound damping, or too
much spring preload

Increase the rebound damping.

Decrease the spring preload.

Rear suspension.

A

Rear suspension stroke is not used to
its capacity. Suspension feels harsh.
Traction not satisfactory in bumpy
curves.
Suspension hard in general or too much
compression damping, too much spring
pre-load.

Decrease the compression
damping.

Decrease the spring preload.

Change to softer spring.

B

Suspension is bottoming, feels soft dur-
ing the entire wheel travel.
Spring too soft, compression damping
too low.

Increase the compression
damping.

Change to harder spring.

C

Suspension is bottoming, feels harsh
and sags down too much with the rider
in the saddle.
Spring too soft or compression
damping too low.

Increase the spring preload,
check ride height. 95 +- 5 mm.

Change to harder spring if the
load is more than 100 mm.

Increase compression damping.

D

Rear wheel jumps over small bumps
during deceleration or when going
downhill. Traction not satisfactory in
washboard curves.
Too much spring preload, as the spring
is probably too soft, will cause the spring
to extend too fast.

Change to a harder spring in order
to achieve a balanced position
using less spring preoad.

Check the static sag and ride height.

E

Rear end kicks up over bumps with
sharp edges, but can handle bumps
with round edges.
Compression damping too hard.

Decrease the compression
damping.

F

Rear end becomes too low in series of
bumps. Traction not satisfactory in
washboard type curves or when
decelerating on washboard ground.
Rebound damping too slow.

Decrease the rebound damping.

G

Rear end very unstable. Shock does not
respond to adjustments.
Shock damping is gone, caused of low
gas pressure, bad oil is used, or
components are broken in the shock
absorber. Service is needed.

Gas filling required.

Change shock oil.

Repair or change the
shock absorber.

Summary of Contents for FG 012 GasGas

Page 1: ...1 Owners manual hlins motocross front forks FG 012 GasGas Including Setting up your bike Fine tuning Service the fork General handling set up Technical info Spare parts tools...

Page 2: ...garding proper installation procedures contact an hlins dealer or other qualified person 3 The vehicle service manual must be referred to when installing the hlins front fork hlins products are subjec...

Page 3: ...an any other brand over 80 titles A well equipped network of author ised hlins service centres around the world with specially trained me chanics can help you with person ally tuned settings service r...

Page 4: ...ou some ba sic guidelines how to set up your bike with your new hlins front fork However remember that the front fork is just one part of your motorcy cle and to get the fork to work prop erly the who...

Page 5: ...experience excessive bottoming or that the bike feels much tostiffandsuspensiontravelisnotfully used harder softerthannormalsprings may be needed for the track you are testing on Consult your hlins de...

Page 6: ...vement go back to what you started with and double check to be sure Payattentiontochangesincon ditions like tires temperatures etc In general compression damping changes should be used to influence th...

Page 7: ...e compression damping Decrease the spring preload Clean the oil seals and scrapers Use hlins grease 148 01 for regreasing F Canhandlethefirstinaseriesofbumps but feels hard after a few more bumps Fron...

Page 8: ...screw the top cap use a 24 mm wrench 2 Put a box under the front wheel so that the springs are visible Remove the top cap from the damper rod extender Use a 16 and 24 mm wrench Remove the spring suppo...

Page 9: ...ort the preload washer and the spring For free spring length see technical information on page 13 7 NOTE Closing the compression and the rebound valves will keep the damper rod extended making it easi...

Page 10: ...gs are located The first bushings is located at the bottom end of the outer leg the sec ond approximately 150 mm further up the leg Between them is a sleeve to main tain the distance 12 Use the specia...

Page 11: ...rder on the bench Inspect all parts for wear and damage replace if necessary Clean all parts thoroughly Assemble the compression valve Assembling 16 Apply a thin layer of hlins green grease 148 01 on...

Page 12: ...topcapandthelocknut Tighten the top cap and the lock nut against each other use a 16 and 24 mm wrench Fit the fork legs on the motorcycle For tightening torques please see your bike s work shop manual...

Page 13: ...evel See mounting instruction for recommended oil level Adjustment range 90 130 mm CAUTION Use only hlins high performance front fork fluid No 5 1305 01 Loctite glue 542 for fork bottom thread and car...

Page 14: ...9 02021 01 4 Bushing lower 10 02325 01 2 Sleeve 11 02332 03 2 Cover Sticker hlins 12 01552 01 2 Washer 13 02336 01 2 Seal 14 02015 01 2 Circlip 15 02014 01 2 Scraper 17 02339 01 2 Cylinder tube cartri...

Page 15: ...27 02322 01 2 Spring 28 02320 03 2 Piston holder 29 00530 18 8 Shim washer see spec card notes 30 01149 01 6 Wave washer see spec card notes 31 Shims see spec card notes 32 02335 01 2 Rebound piston...

Page 16: ...ex More info www ohlins com The ultimate suspension site Find out everything about your suspension Download mounting instructions manuals and brochures And a lot more hlins Racing AB Box 722 S 194 27...

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