stripping USD forks - SV650.org

Bibio · 24-01-10, 05:00 PM

having never stripped a set of usd forks can someone who has done this please satisfy my curiosity.

what i would like to know is, once you have taken off the top nut from the cartridge can you just slide the outer tube (part with the seals) off?

or do you need to strip the cartridge out. if so can you just undo the bottom retaining bolt and take the cartridge out in one piece?

Sid Squid · 24-01-10, 05:02 PM

Usually, yes, there's no need to remove the damper assembly.

Bibio · 24-01-10, 05:03 PM

coolio. so to replace the seals all i need to do is take the top nut off and slide the outer tube off?

Sid Squid · 24-01-10, 05:12 PM

Yes. But I'd probably take the dust seal and the circlip off too

.

Bibio · 24-01-10, 05:13 PM

lol, will remember that. thanks Sid.

24-01-10, 09:41 PM

Quote:

Originally Posted by Bibio

coolio. so to replace the seals all i need to do is take the top nut off and slide the outer tube off?

Depends what year USD forks are. Only the ones with radial calipers can do this. Others before you need to bang bushings apart.

Bibio · 24-01-10, 09:47 PM

phew. just as well they are gsxr 600 k4-5 with radial.

thanks zadar

maviczap · 24-01-10, 09:51 PM

On a similar vein, how about draining the oil from 1991 USD GSXR 750 forks, just undo the top nut and tip out into a container ?

What weight fork oil & what air gap as standard?

Red Herring · 25-01-10, 08:29 AM

Quote:

Originally Posted by Bibio

phew. just as well they are gsxr 600 k4-5 with radial.

thanks zadar

Did mine a couple of weeks a go, only problem I had was holding the spring down far enough to get to the lock nut to remove the spring. You'll either need to splash out on the proper tool or have a reasonably dexterous mate to hand!

25-01-10, 09:35 AM

Quote:

Originally Posted by maviczap

On a similar vein, how about draining the oil from 1991 USD GSXR 750 forks, just undo the top nut and tip out into a container

There is only one way to do it right, take forks complete apart.

24-01-10, 05:00 PM	#1
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	stripping USD forks having never stripped a set of usd forks can someone who has done this please satisfy my curiosity. what i would like to know is, once you have taken off the top nut from the cartridge can you just slide the outer tube (part with the seals) off? or do you need to strip the cartridge out. if so can you just undo the bottom retaining bolt and take the cartridge out in one piece?

24-01-10, 05:02 PM	#2
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: stripping USD forks Usually, yes, there's no need to remove the damper assembly. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

24-01-10, 05:03 PM	#3
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: stripping USD forks coolio. so to replace the seals all i need to do is take the top nut off and slide the outer tube off?

24-01-10, 05:12 PM	#4
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: stripping USD forks Yes. But I'd probably take the dust seal and the circlip off too . __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

24-01-10, 05:13 PM	#5
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: stripping USD forks lol, will remember that. thanks Sid.

24-01-10, 09:47 PM	#7
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,568	Re: stripping USD forks phew. just as well they are gsxr 600 k4-5 with radial. thanks zadar

24-01-10, 09:51 PM	#8
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,097	Re: stripping USD forks On a similar vein, how about draining the oil from 1991 USD GSXR 750 forks, just undo the top nut and tip out into a container ? What weight fork oil & what air gap as standard? __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

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