Gs1000 forks ?

[wraith]

Ok, long story short,

I've put a set of gs1000 forks on my gs1000, replaced oil seals and put new SAE15 oil in. All felt ok but when I fitted them to the bike and put the bike back on its two wheels the forks dropped down to apx 3" of travel and when riding it this goes down to apx 1"  

 It dose not bottom out when riding and apart from the low front end seems to ride not to bad all in all????

 I've ordered some new progressive fork springs in case the springs are way past there use.

Any other ideas as to what this may be? 

Or has anybody had this before?

Thanks.

[Fazz711]

Hi bud. 

Put on some weight recently? 

LOL

[wraith]

Not that much lol

[gs7_11]

Chain drive GS1000 Air forks?

[wraith]

Yes

14 minutes ago, gs7_11 said:

Chain drive GS1000 Air forks?

 

[BigT]

did you forget the preload spacers?

[gs7_11]

That's what I was thinking, or no air pressure.

[Blubber]

I was thinking "support air" too.. but that surely he can't be that daft 

[wraith]

6 hours ago, Blubber said:

I was thinking "support air" too.. but that surely he can't be that daft 

 I could be 

I got the forks of that site, as working forks but stripped them and put new seals and oil in. Must say I did not check the manual apart from for oil amount, all seemed to be there in the right place when I stripped them and there was not left over parts on the bench when I'd finished  

I think when the new springs come I will strip them down and have a very good check of all the bits 

[BigT]

There's a cupped washer that sits on top of the springs, and the preload is a 4" (?) tube that sits on that.

Hard to miss, but buying something used can have its drawbacks. Check the fiche

[wraith]

Sorted 

one set of progressive springs, set pre-load and one set of working forks 

Top spring is the progressive spring, bottom spring is the standard one, not much difference 

[Blubber]

 wow.... 

 

That surely will help the sag

[Pudzrx]

Can only imagine they came out of a drag bike .

[gs7_11]

Yes, but the short spring has the spacer as well. That's standard.

So what was the issue then? Just no air pressure?

Edited August 23, 2019 by gs7_11

[wraith]

5 hours ago, gs7_11 said:

Yes, but the short spring has the spacer as well. That's standard.

So what was the issue then? Just no air pressure?

I don't know, all the bits where/are there all in the right place.

Replaced the standard spring and spacer/dampening tube with the YSS progressive springs and a 35mm spacer/dampening tube, with no air out in forks they sit right and seem to do what they are meant to do nicely and are giving a good ride feel nice and smoove.

All I can think is the standard 40 year old springs are past there best, instead of about 1" of travel till the forks are at the bottom yoke there is now about 5"+ with about 40mm of travel. I've not put a tape on them so take the 5" and 40mm as a very apx size  when my palms have recovered I may do some more work on the preload But it's good for now 

But they work