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Owners Manual

Öhlins motocross front forks 225 TM

Including:

Setting up

your bike

Fine-tuning

Service

the fork

General

handling set-up

Technical info

Spare parts

Summary of Contents for 225 TM

Page 1: ...1 Owners Manual Öhlins motocross front forks 225 TM Including Setting up your bike Fine tuning Service the fork General handling set up Technical info Spare parts ...

Page 2: ... written permission of Öhlins Racing AB is prohibited Printed in Sweden 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 occur after fitting the front fork Contact an Öhlins dealer or other qualified person for advice 2 Please ...

Page 3: ...Design Öhlins new up side down USD front fork is de signed to combine the advantages of comfort able safe conventional forks and rigid light USD forks The result is a unique combination of be ing rigid precise in corners and during hard brak ing yet comfortable forgiving when over land ing and in big bumps Your new Öhlins USD front fork has aluminium outer legs and 46 mm steel inner legs with a po...

Page 4: ...d 80 5 mm Setting the spring preload 1 Measuring Preload on the spring springs is very important because it affects the height of the motorcycle and theforkangle Consequently handlingcharacteristics canbechanged evennegatively Proceedasfollows it will be much easier if done by two persons Place the motorcycle on a stand so the front fork and the rear end are in fully extended position Measure the ...

Page 5: ... have a normal right hand thread Click position zero 0 is when the adjusters are turned clockwise to fully closed The adjustment range from fully closed until maximum open valve anticlockwise is 20 clicks In order not to click in the wrong direction al ways first close the adjuster then dial in the new setting Making adjustments To make improvements using the adjusters it is important to understan...

Page 6: ...nditions CAUTION The oil level must be the same in both front fork legs Riding a bike with different oil levels will cause instability When the oil level is raised The air spring in the later half of travel is strong and thus the front fork hard When the oil level is lowered The air spring in the later half of travel is soft and thus the front fork soft CAUTION Adjust the oil level with the fork l...

Page 7: ...an unscrew the top cap Remove the adjustment wheel and the springs and balls of the adjuster 2 Unscrew the top cap use tool 1860 01 Put a box under the front wheel so that the springs are visible 3 Remove the top cap from the damper rod ex tender Use a 17mm wrench and tool 1860 01 Adjustment wheel Balls and springs Tool 1860 01 Top cap 17 mm wrench Damper rod assy Damper rod extender ...

Page 8: ... static sag 5 Fit the spring support and the top cap and refit the adjustment wheel For tightening torques please see your bike s work shop manual NOTE The top nut only have to be tightened by hand without extending tool Spring support Original pre load washer New pre load washer Adjustment wheel Top cap Spring support ...

Page 9: ...acer 7 NOTE Closing the compression and the rebound valves will keep the damper rod extended making it easier to install the new spring Pull out the damper rod as far as possible Close the compression and the rebound valve clockwise 8 Install the new spring Check the free length of the spring Original length is 487 mm If the spring length is under 460 mm the spring must be changed Follow instructi...

Page 10: ... rate All forks 2328 41 4 1 N mm 2328 43 4 3 N mm supplied Optional spring rate 2328 39 3 9 N mm 2328 45 4 5 N mm 2328 47 4 7 N mm ØA ØB L 70 300 200 Oil level See mounting instruction for recommended oil level Adjustment range 90 130 mm CAUTION Use only Öhlins high performance front fork fluid No 5 1305 01 Tighten torque Triple clamp bolt See your bike s work shop manual Compression valve 65 Nm B...

Page 11: ...0 22 22 17 10 11 1 2 3 4 5 21 16 24 25 26 23 25 1 4 5 7 2 3 9 8 6 10 11 12 13 14 15 16 17 18 19 20 21 27 28 29 31 32 33 34 35 37 38 39 40 42 43 45 44 56 22 47 48 49 50 51 52 53 54 46 12 Front fork components 23 24 25 26 30 36 41 55 ...

Page 12: ...irst 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 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 Front end ploughs understeers Shal...

Page 13: ...l dry out the seals and the steel tubes and cause friction or leakage After every race Clean externally and spray with an all purpose oil after washing with detergent Check externally for damage Put a little Öhlins green grease 148 01 on the steel tubes and work it in by pushing the fork up and down Every 20 hours Dismantle the fork and check all parts for wear and damage replace if necessary see ...

Page 14: ...14 Notes ...

Page 15: ...15 Notes ...

Page 16: ...ite Find out everything about your suspension Download mounting instructions manuals and brochures And a lot more Öhlins Racing AB Box 722 S 194 27 Upplands Väsby Sweden Phone 46 8 590 025 00 Fax 46 8 590 025 80 Your Öhlins dealer More info www ohlins com ...

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