How To Rebuild The Forks On Your 1998-2001 Yamaha YZ125.
What Tool Do I Need For This Suspension Service?
- 18mm Socket
- 17mm Box Wrench
- 14mm HEX socket → https://amzn.to/40mugKW
- Torque Wrench → https://amzn.to/4gFXJoO
- Oil Level Guage → https://amzn.to/3DZjH7C
- Fork Seal Driver → https://amzn.to/406jY0e
- Waste Oil Catch Pan
- Plastic Wrap
- Vise
- Pick
- Flathead Screwdriver
- Lots of Towels
- Safety Glasses → https://bulltru.com
- High-Pressure Grease
The only specialty tool you will need is a damper rod holding tool. → https://amzn.to/4h4hzKj
I don’t recommend trying to make a damper rod-holding tool yourself. It’s only $40 and will actually work!
Torque Specs For Your 1998 – 2001 Yamaha YZ125 Front Fork Rebuild:
- Compression valve – 41 ft-lbs
- Fork cap to damper rod – 21 ft-lbs
- Fork cap to fork tube – 22 ft-lbs
- Upper bridge bolts – 17 ft-lbs
- Bottom bridge bolts – 15 ft-lbs
Kayaba Fork Service Specifications:
- Fork oil – Kayaba O1 – or equivalent (Maxima) → https://amzn.to/40rncwo
- Max spring free length – 17.9 inches (455mm)
This is a straightforward service, but it will take time, so don’t do it at the last minute before a riding trip. Plus, you have to do it twice!
