Logo

Fork oil specs

This is a discussion on Fork oil specs within the Z1K/Z750 Maintenance forums, part of the Kawasaki Z1000, Ninja 1000, Z750 & Z-750S category; Anyone know what the stock fork oil weight is? How much fluid do they hold? I'm about due to change mine out....

Results 1 to 9 of 9

Thread: Fork oil specs

  1. #1
    Supreme Being Compstall's Avatar
    Join Date
    Dec 2004
    Location
    Tacoma, WA
    Age
    40
    Posts
    1,749
    Thanked
    2 times

    Fork oil specs

    Anyone know what the stock fork oil weight is? How much fluid do they hold? I'm about due to change mine out.
    - Brent
    '03 Z1000, gone as of 17 Oct 2011 :/

  2. # ADS

    Welcome to the largest Kawasaki Motorcycle Forum on the web.
    Registers users do not see these ads, register today - it's free!

  3. #2
    Rising Star Mike47's Avatar
    Join Date
    Apr 2006
    Posts
    471
    I dont remember the weight oil I used, when I get home I'll look and post. But make sure you check the manual for the amount because one leg takes more than the other. My dealer supposenly looked this up and told me to use equal amounts. After putting in the dealer recomended amount, I only had about 1" of travel. Way to much oil. Dont trust the dealer look it up yourself. Heres the link if you need it. http://zed1000.free.fr/manuel/manuel.pdf

  4. #3
    Site Elder climb21cj's Avatar
    Join Date
    Jun 2006
    Posts
    565
    I believe its a 5wt fork oil. I can't remember the numbers, but on the stock forks they are not equal. The right fork has the rebound adjuster, which takes up more room, so less fluid will fit in.

    The left fork will hold more oil. Be sure to measure the space from top of fluid to top of fork. I needed more oil than the manual specified.

    edit: 5wt goes in the 636 forks, ss8 fluid goes in the z1k
    Last edited by climb21cj; 05-23-07 at 08:01 AM.
    go green, or go home

  5. #4
    Site Elder ProZac's Avatar
    Join Date
    Mar 2005
    Location
    Barrie, ON, Canada
    Age
    38
    Posts
    860
    I went through this last month when I did my fork oil. I was told by two kawi mechanics from different dealers that the stock oil weight is 7.5
    It's called Showa SS-8
    I just replaced mine with 7weight Maxima Racing Fluid.

    If you don't have the proper tools for inverted forks it's gonna be a pain to do.

    Right fork leg takes 13.01 US oz when changing fluid and the left is 13.52 US oz

    Best to measure it from the top of the outer tube though when fully compressed and no spring. Right leg is 2.44" +/- 0.08" and left is 1.85" +/- 0.08"
    Len - Z1000 Barrie

    Air box mod, PCIII USB, K&N, Custom BlueFlame slipons, Fender eliminator, LP SS turn signals, PBR frame sliders, Motovation engine case sliders, Kawi taller windscreen, NBM SS front/rear lines, 636 shock, Skidmarx BP, Pazzo levers, Rizoma Circuit 851 mirrors, Corbin seat, Grip warmers, Dual headlight mod, BT014's, and mostly blacked out.


    Check out our website The Brake's Site

  6. #5
    Supreme Being Compstall's Avatar
    Join Date
    Dec 2004
    Location
    Tacoma, WA
    Age
    40
    Posts
    1,749
    Thanked
    2 times
    Just found it in the manual.

    Well, the viscosity doesn't help, as it specifies Showa SS-8, whatever that consists of.

    13.01 oz. for the right side

    13.52 oz. for the left side.

    Complete disassembly takes a couple ounces more.
    - Brent
    '03 Z1000, gone as of 17 Oct 2011 :/

  7. #6
    Supreme Being Compstall's Avatar
    Join Date
    Dec 2004
    Location
    Tacoma, WA
    Age
    40
    Posts
    1,749
    Thanked
    2 times
    Quote Originally Posted by ProZac
    I went through this last month when I did my fork oil. I was told by two kawi mechanics from different dealers that the stock oil weight is 7.5
    It's called Showa SS-8
    I just replaced mine with 7weight Maxima Racing Fluid.

    If you don't have the proper tools for inverted forks it's gonna be a pain to do.

    Right fork leg takes 13.01 US oz when changing fluid and the left is 13.52 US oz

    Best to measure it from the top of the outer tube though when fully compressed and no spring. Right leg is 2.44" +/- 0.08" and left is 1.85" +/- 0.08"
    Hey thanks for the info, I'll probably use the measurement method at the top of the tubes. Best info I've found so far is the SS-8 fluid is a 10 weight fluid. Seeing that bikes are built for 150 lb riders, I think I might just go to a 15 weight if I can find it.
    - Brent
    '03 Z1000, gone as of 17 Oct 2011 :/

  8. #7
    Rising Star RacingTiger04's Avatar
    Join Date
    May 2006
    Location
    Jasper,TN
    Posts
    270
    changing fork fluids.. im definately new to this type of maintenance.. how often should it be done and how much effort does it take?

  9. #8
    Site Elder climb21cj's Avatar
    Join Date
    Jun 2006
    Posts
    565
    Quote Originally Posted by RacingTiger04
    changing fork fluids.. im definately new to this type of maintenance.. how often should it be done and how much effort does it take?

    Its not difficult, if you have the right tools.

    Looking at the manual the z1k uses a different spring compressor than the 636, but I can't figure out how it stays compressed. it looks like somebody has to hold it in the compressed position while the plug nut is loosened. that is what i had to do last time, and its a PITA. i modified my spring compressor so i can do the job alone. i am going to test it out tomorrow if things go right.


    as far as the weight is concerned, the z1k takes the ss8? im guessing a 7.5 weight. i put a 5w in my 636 forks, pretty sure thats what they called for.
    go green, or go home

  10. #9
    Site Elder ProZac's Avatar
    Join Date
    Mar 2005
    Location
    Barrie, ON, Canada
    Age
    38
    Posts
    860
    I borrowed a ******** kit from a friend. It had all the right fittings for every bike. The spring compressor was universal though. It worked fine on the bike. It was just a ring with threaded holes in either side. Push it down and slide the little fork thingie under the top nut. Without the tool I think it would be pretty difficult.

    Also I think if you put 15wt in you will need to revalve. There's no way that 15wt would even move through the stock valves. You will have so much compression damping it will feel like you have no suspension at all.
    Len - Z1000 Barrie

    Air box mod, PCIII USB, K&N, Custom BlueFlame slipons, Fender eliminator, LP SS turn signals, PBR frame sliders, Motovation engine case sliders, Kawi taller windscreen, NBM SS front/rear lines, 636 shock, Skidmarx BP, Pazzo levers, Rizoma Circuit 851 mirrors, Corbin seat, Grip warmers, Dual headlight mod, BT014's, and mostly blacked out.


    Check out our website The Brake's Site

Ads

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Search tags for this page

2003 kawasaki z1000 fork fluid level

,
fluid specs forks on a 505xcf take
,
fork oil capacity 2003 concours
,

fork oil capacity 2003 kawasaki concours

,
how much fork fluid does 03 636 take
,

kawasaki z750 fork oil capacity

,
showa shock fluid oil weight
,

z1000 best fork oil weight

,

z750 fork oil level

,
zl1000 fork oil capacity
Click on a term to search for related topics.