My YZ 400F

I don't have the service manual for my 400F.I want to replace my fork oil.I need to know the correct amount to add and the proper way to fill the forks.Also a suggestion on oil weight would be helpful too!I would greatly appreciate any suggestions. :)

I've got the manual for a 98 YZ, if I can remember tonite, I'll bring it and either post what you need tomorrow, or fax the pages to you. Sorry no scanner available...

You are so cool!Thanks a bunch,what ever works best for you.Any help I can get will be great.I bought the bike almost 1 month ago so I am trying to make sure everything is right before I ride.If you decide to fax the info here is the fax # 916-685-5255,I will pay the cost of the fax if needed.Thanks again for everything.

Greg :)

I think it is race tech that has a great web site that you enter your bike your weight riding ability and so forth and it tells you what spring rate and oil height to use. they also make a great tool for setting your oil height I think it retails for about 39 bones. Good Luck!

Greg, I faxed you over some stuff (probably more than you need) this morning. It's info from the Clymer manual, if you need info from the factory manual, I've got that too.

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

  • Similar Content

    • By High On Octane
      Got a break in the weather over the weekend, and was finally able to get out on a track for the first time since October.  I know I suck compared to a lot of guys (and kids for that matter), but I always have a blast twisting a grip and roosting some dirt!  Here's a raw uncut lap around the MX track at IMI Motorsports Complex in Dacono, CO.  Was a fun day despite some wind.  Also, there was a drift car club having a meet on the road course.  So, got to check out some drift car action while we were taking a break.
    • By PFOS58
      Lightly used Clarke Gas Tank (model #11614) for a 2010-13 YZ450F.  Includes cap.  For fuel injected YZ450F, so needs to have fuel pump transferred over.  Rest of stock tank hardware fits perfectly.  2.8 gallon capacity, so great for desert, hare scrambles, or WORCS.  Retails for $240.
      E-mail me with any questions or offers at
      Buyer pays shipping from 84726.
    • By faizakhtar125
      Like this comment if you have a YZ. I want to see how many people have YZ's, especially YZ125's
    • By PFOS58
      ProMoto Billet KickIt kickstand for 2010-13 YZ450F.  Model 5006.  Used, but in good shape.  Buyer pays shipping from 84726.  Will take PayPal.
    • By PFOS58
      Used FMF Factory 4.1 Full Exhaust System. Includes slip-on muffler and two piece header.  Includes approved spark arrestor.  No dings or dents.  Fits YZ450F from 2010 to 2013.  You pay shipping from 84726.