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GSX1400: A Magic Carpet with a Rocket up its Arse

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Fork seals

Started by Kiwifruit, Tuesday, 04 November 2025, 04:57 PM

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Kiwifruit

Hi Gents. Some of your wisdom please.
Have noticed a weeping fork seal. My intention is to do them both. Do I have to use genuine Suzuki seals or do the likes of someone like SKF do a good replacement and is there a dust cover or anything else I'm going to need to complete the job ?
 :cheers:
Another great day on the right side of the grass.😎

grog

Col, genuine are NOK 46x58x10,5. Fit hundreds of bikes. SKF get great reviews. Personally, $90 for genuine, i couldnt be bothered stuffing around for a few bucks to save. All other brands 👎

T250

Same as you grog, I tried after market and they didn't last long, put genuine in and touch wood still okay after all these years  :onya:

seth

Only use genuine suzuki seals as aftermarket ones always leak very soon after no matter what the quality
only a slightly modified gsx1400
oh and a standard one too

Sethbot Postwhore

Kiwifruit

 Thank you, I also read dust covers are a separate part and are worth doing at the same time ?
Another great day on the right side of the grass.😎

grog

Unless hard cracked etc, scrub up and refit imo.

Hooli

Get your genuine ones from webike Japan, much cheaper & only take a few extra days to arrive. Fit them with the yellow spot upwards.

As said, dust seals just depend on how bad yours are. One other thought, you can pop the dust seals out with the bike still built up. Worth doing just to check how rusty the spring clip that retains the fork seal is, obviously if they're rotten replace those too.

lurch

SKF do make seals to suit, the problem is that they're green. Probably the best seals on the market and I use nothing else for any dirtbike that passes through my workshop. For the 1400 I'd stick with genuine (KYB) though - still excellent quality and they're black.

The retaining clips are likely to be rusty as Hooli said so I'd definitely check that out, or just order some while you're at it. Depending upon km travelled and maintenance history it could be worth considering replacing the slide bushings as well.

Eric GSX1400K3

Adding my 2c, tried a setbof aftermarket, just rubbish like Seth said. Replaced with genuine, no probs. Just triple check the chrome on the stanchion, run a bit of 3000 grit wet n dry over the seal area, ensures the seals stay sealed.
I try to take one day at a time, however sometimes several days catch up with me at once.

Hooli

There's a good point from lurch about the bushes, mine were totally shot by 113k miles when I had the forks rechromed too. Easy to spot if they are worn, the copper colour bush has gone & just the black backing showing - or might be the other way around I forget.

You'll know if they are bad due to a front end shiver & if you pull the fork legs you can feel slight movement compared to the stanchions.

Andre

Quote from: Hooli on Tuesday, 04 November  2025, 10:27 PMEasy to spot if they are worn, the copper colour bush has gone & just the black backing showing - or might be the other way around I forget.

The other way around

stick3

i had mine replaced a few weeks ago the mech told me the tubes are badly pitted and they will eventually leak again, he did price new tubes at 560 each

but he said sends them to business somewhere in Queensland he did mention there name which i forgot to be re chromed its lot cheaper but downside it takes around 5 weeks   

Hooli

Yeah we normally rechrome as it's cheaper over here too.

lurch

Quote from: stick3 on Wednesday, 05 November  2025, 09:33 AMbut he said sends them to business somewhere in Queensland he did mention there name which i forgot to be re chromed its lot cheaper but downside it takes around 5 weeks   
Rad Hard Chroming. They did my XS650 forks a while back which came out perfect

Eric GSX1400K3

Quote from: lurch on Wednesday, 05 November  2025, 10:22 AM
Quote from: stick3 on Wednesday, 05 November  2025, 09:33 AMbut he said sends them to business somewhere in Queensland he did mention there name which i forgot to be re chromed its lot cheaper but downside it takes around 5 weeks   
Rad Hard Chroming. They did my XS650 forks a while back which came out perfect
same bloke that runs Rad Shocks?
I try to take one day at a time, however sometimes several days catch up with me at once.

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