OHLINS STX 36 Scooter Shock Absorber Owner’s Manual

OHLINS STX 36 Scooter Shock Absorber

Specifications:

• Part No:
  • Shock absorber: PI 921
  • Screw M6x20: 05404-03
  • Screw M8x40: 01046-21
  • Washer: 00426-07
  • Brake Line Bracket: 60006-59
  • Sticker set: 10207-01
  • Owners manual: 07241-02
  • Tool preload adjuster: 03199-03
• Quantity:
  • Shock absorber: 1
  • Screw M6x20: 1
  • Screw M8x40: 2
  • Washer: 1
  • Brake Line Bracket: 1
  • Sticker set: 1
  • Owners manual: 1
  • Tool preload adjuster: 1

Product Usage Instructions

Mounting Instructions:

1. Put the motorcycle on a work stand so that the front wheel barely touches the ground. Ensure stability.
2. Remove the front wheel following the motorcycle service manual instructions.
3. Untighten screw (1), (2), (3) to remove plastic cover A and untighten shock absorber lower mounting screws (4), (5).
4. Remove the standard shock absorber by loosening cover screws (4), (5) and top mounting screws (6), (7).
5. Remove the brake line hose clamp B.
6. Remove the top plate from the standard shock absorber by loosening the nut (9). Top plate assembly.
7. Install the new shock absorber in reverse order. Tighten the nut (9) as per Vespa service manual instructions.
8. Loosen the brake line banjo bolt (10) and adjust its position. Tighten at specified torque value.
9. Tighten top plate mounting screws (11), (12) and lower mounting screws (13), (14) at specified torque values.

Adjustments:

Spring Preload Adjuster: DO NOT LOOSEN (not an adjuster)

Set-Up Data:

• Recommended set-up:
  • Spring Preload: 8 mm
  • Spring Part No: 60001-51
  • Free spring length: 180 mm
  • Spring rate: [13-34]N/mm
  • Preload adjustment range: [6-13]mm
• Shock Absorber Data:
  • Length: 273 mm
  • Stroke: 82 mm

FAQ

Q: What should I do if I notice oil or grease leakage from the product during storage?

A: If you notice oil or grease leakage, simply wipe off the excessive oil/grease with a cloth. This does not affect the product’s performance.

Q: Is it necessary to refer to the Vehicle Service Manual for specific procedures?

A: Yes, it is recommended to always refer to the Vehicle Service Manual for vehicle-specific procedures and important data when working on this product.

Q: What is the torque value for tightening screws during installation?

A: Ensure all screws are tightened to the correct torque specified in the Vespa service manual to avoid any issues with movement of the shock absorber.

Q: How should I adjust the Spring Preload?

A: The Spring Preload is not adjustable; ensure it is set at the recommended value of 8mm.

Q: What is the recommended torque for tightening the lower mounting screws?

A: The lower mounting screws should be tightened at 24 Nm using threadlocker (e.g., Loctite) for secure fastening.

Note!
Please note that this image is a general representation of the product and may differ slightly from your product.

Note!
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.

Note!
Before installing this product, check the contents of the kit. If anything is missing, please contact an Öhlins dealer.

Kit Contents

Kit Contents|  |
---|---|---
Description| Part No| Pcs
Shock absorber| PI 921| 1
Screw M6x20| 05404-03| 1
Screw M8x40| 01046-21| 2
Washer 6.4/12.5/1.6| 00426-07| 1
Brake Line Bracket| 60006-59| 1
Sticker set| 10207-01| 1
Owners manual| 07241-02| 1
Tool preload adjuster| 03199-03| 1

Warning!
Before installing this product, read the Öhlins Owner’s Manual. The shock absorber is an important part of your vehicle and will affect the stability.

MOUNTING MOUNTING INSTRUCTIONS

Warning!
It is advisable to have an Öhlins dealer install the shock absorber.

Warning!
If working on a raised vehicle, ensure it is securely supported so that it will not tip over.

Note!
When working on this product, always see the Vehicle Service Manual for vehicle-specific procedures and important data.

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.

1. Put the motorcycle on a work stand so that the front wheel barely touches the ground. Make sure the motorcycle is in a stable position.

2. Remove the front wheel as per motorcycle service manual instructions.

3. Untighten the screw (1), (2), (3) in order to remove the plastic cover A.
   Untighten the shock absorber lower mounting screws (4), (5).

4. Remove the standard shock absorber by loosening the 2 cover screw (4), (5) and the 2 top mounting screws (6), (7).

5. Remove the brake line hose clamp B

6. Remove the top plate from the standard shock absorber by loosening the nut (9).

7. Install the standard top plate onto the Öhlins shock absorber in the same order. Tighten the nut (9) at a torque value as specified in the Vespa service manual instruction.

8. Loosen the brake line banjo bolt (10) and adjust its position so that it dosn’t interfere with the Öhlins shock absorber.
   Torque at value as specified in the Vespa service manual.
   Note!
   It is recommendable to service the motorcycle front braking system after performing the operation 8

9. Install the Öhlins shock absorber by:
   Tighten the top plate mounting screws (11), (12) at a torque value as per Vespa service manual instructions.

Tighten the lower mounting screws (13) and (14) at 24 Nm. Use threadlocker
(Eg. Loctite) to secure the screws.

10. Install the bracket (15) and the plastic cover following the diagram 1.
    Re-install the hose clamp onto the Öhlins bracket.

Diagram 1

11. Reverse all the procedures as necessary

ADJUSTMENTS

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.

SET-UP DATA

Recommended set-up

• Spring Preload ………………
• 8 mm

Spring

• Part No ……………………….. 60001-51
• Free spring length …………. 180 mm
• Spring rate …………………… [13-34]N/mm
• Preload adjustment range.. [6-13]mm

Shock absorber data

• Length ………………………………… 273 mm
• Stroke ………………………………… 82 mm

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.
© Öhlins Asia Co. Ltd. All rights reserved. Any reprinting or unauthorized use without the written permission of Öhlins Racing AB is prohibited.
To find the latest information contact an Öhlins distributor. Please contact Öhlins if you have any questions regarding the contents in this document.

Öhlins Asia Co. Ltd
700/937 Moo5, Tambol Nongkhaga, Amphur Phantong, Chonburi Province 20160 Thailand

Part no. MI_PI921_0 Issued 2024-03-08

www.ohlins.com

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