HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Benjitis

changing fork oil

6 posts in this topic

Does anyone have a link to step by step directions on putting new fork oil in the front forks for a YZ426F?? I need to do this tonight and the manual isnt very clear. THanks.

Share this post


Link to post
Share on other sites

Not that tough.

Loosen the pinch bolts on the top clamp and crack the fork caps loose, then continue to remove each fork leg.

Remove the cap and spring, and dump the existing oil into a pan. Pump the fork tube and the damper rod a number of times to remove as much oil as possible. Watch for any stray hardware, like washers for the lower spring seat, etc.

The filling instructions are a little vague. The issue is that air must be excluded from the damper and base valve. Fill the fork nearly full, then extend the main tubes slowly. You want to work slowly enough not to generate any foam and complicate your job. Cycle the fork up and done once or twice, and add a little more oil. Cycle the damper up and down slowly a few times, adding oil as needed, until you can feel that the air has been eliminated from the damper cartridge. Cycle the fork leg itself again and check the oil level.

Set the oil level with the spring out, and the fork and damper fully compressed. Reinstall the spring and cap, and reassemble. :)

Share this post


Link to post
Share on other sites
Does anyone have a link to step by step directions on putting new fork oil in the front forks for a YZ426F?? I need to do this tonight and the manual isnt very clear. THanks.

Benjitis,

Visit my son's ole website @ www.motoman393.thumpertalk.com and look in the technical section. I think he has something in there about changing the forks and such. I remember he made a special tool used in suspension work.

Hope this helps.

Regards,

Michael Berg

"Motodad393"

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0