is after market fork seals the same......... - Kawasaki ZX-10R.net
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post #1 of 26 Old 01-01-2009, 12:37 PM Thread Starter
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is after market fork seals the same.........

i had my fork seals replaced twice this year. first time warranty covered them the second time i had to cover them, almost $300 in labor cost. at about 10,000 mile each time. i currently have about 24,000 miles on the bike. the next time myself and a couple of friends are going to change them.

anyway are all fork seals the same or is their a after market set that is better then factory? at the rate of miles i'm riding and doing trackdays and twisties when possible, i'll be changing fork seals again in a year. and if there's something better then factory i'd spend the extra dollars for the longer wear time.

i did the search and found topics on changing fork seals but nothing about which fork seal is better to use.

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post #2 of 26 Old 01-01-2009, 12:41 PM
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I have heard, always use Kawi seals!,.....with the dual springs on the inside!,....lot of aftermarkets have only one spring,.......therefore less wrap tension on the rubbers!
But I am no expert,....but have heard this from several people!,......just trying to help!

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post #3 of 26 Old 01-01-2009, 01:29 PM
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Did both of your seals go or one at a time? My right side is leaking. Is it hard to change the seals? I am handy until special tools are needed that I do not have.
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post #4 of 26 Old 01-01-2009, 02:42 PM
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...I've tried aftermarket seals once; they didn't even fit properly for the 06/07 bike. The Kawi seals are pretty cheap (if you buy them from www.flatoumotorcycles.com) and they always work. I'm on my third set on my primary bike and my second set for the second bike. :) I highly recommend you replace dust seals when you do it.... you end up changing fork seals less. Ask me how I know. :)

Changing them can range from easy to catastrophe, depending entirely on the tools at your disposal. Getting the fluid level right based on height is impossible without the tool to remove the spring/cartridge assembly. I always get lazy and do mine on volume instead of height, and that works out pretty good for me. ;) If you have access to a front tripple tree stand (or a couple ratchet straps and an overhead beam), 1 liter of quality 5wt fork oil, 2 cans of brake/contact cleaner, and an impact gun, the job can go pretty smooth. I seriously recommend the impact, though.... the bottom banjo style bolt can sometimesbe a REAL bastard to get to break loose (sometimes it just rotates the entire cartridge assemblyif you use hand tools.... not fun). I use a modified hex key socket and the impact and it zips out every time without a headache.

I made the tool for the bottom banjo bolt that I could use with my impact gun: I just took a normal hex key socket and milled down the diameter so it would fit through the bottom of the fork leg. If you need a pictoral/breakdown/walkthrough just shoot me a PM and I can write something up for you. :) Once you've done it once (and have the right tools) it's really pretty simple.

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Last edited by SpazOnaZX; 01-01-2009 at 02:46 PM.
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post #5 of 26 Old 01-01-2009, 02:45 PM
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Factory seals are the best. If you wanna buy other seals make sure they are NOK rubber..don't ask me what that means but its what makes a cheap seal a good seal
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post #6 of 26 Old 01-01-2009, 02:55 PM
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....you will never be sorry buying OEM seals. Just thought I'd add that.

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post #7 of 26 Old 01-01-2009, 03:56 PM
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How long does this normally take? And you take the forks off yes? Think I'll buy the triple tree stand and do this myself. Watched a video on YouTube and seems fairly easy.
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post #8 of 26 Old 01-01-2009, 04:08 PM Thread Starter
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thanx for the feedback. my current seals are only 1 month old. but it took my dealership a week to get them shipped in. at that time there was a ride planned, so i started searching for seals elsewhere so my bike would get done quicker. in the process i found that prices were pretty much the same for factory seals or aftermarket seals. so i was just wondering if aftermarket was a better seal or not.

i currently don't have the tools to change my fork seals myself. but a few of my riding buddies do. and at $300 a hit to have my seals done, i'll just buy the tools and what not's and do it myself.

thanx again, i love this site..........

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post #9 of 26 Old 01-01-2009, 04:45 PM
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yea... the forks need to come off the bike. :)

the $60 front tree stand on ebay right now is actually a really nice item.... I did my last job with that one (so much better than the ratchet strap approach).

I've done a ride or two while waiting for seals. It makes a mess, but that's about the worst of it. A week actually sounds fair; that's about how long most of my parts take to get from flatout. If you need to see a good idea of the hex socket mod, let me know and I'll snap you a picture. I haven't found a hex socket that's small enough off the shelf yet, but they are easy and cheap to grind down & the still work as a normal tool after the fact. It's a shame you aren't a little further south Tempe_ty, I usually do stuff like this for free beer and an extra set of hands. :)

G'luck!

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post #10 of 26 Old 01-01-2009, 04:55 PM
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there a guy here who can do it for 75 bucks. you just get the seals.

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