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79 gs1000e front forks question

  • Thread starter Thread starter dwfranke1
  • Start date Start date
D

dwfranke1

Guest
im refreshing the front forks on my 79 and want to know if i can simply preload the springs with a longer spacer and just skip the air part or is the air preload a need part of this type of suspension, it appears this is just a simple damping rod fork setup,
thanks
dwfranke
 
Yes, it is "just a simple damping rod fork setup".

You might be able to just add a spacer. Depending on how far gone the springs are, there might not be enough tension left in them to raise the bike with more preload before they bind up. You can try the spacer, but if that does not work, get a set of fork springs from Progressive Suspension. Not all that expensive and definitely worth the investment. They are heavier springs and once you get the spacer length correct for them, you will not need additional air in the forks.

.
 
does any one know the resting length of the spring so i can measure them while i have them out of the bike?
 
Fork spring free length for a GS1000E is 421mm standard, 416mm service limit. Oil level 140mm. (Fork compressed, spring out - measure to top of fork tube).

However, some 79 Es were fitted with the GS1000S springs (Suzuki parts bins again or an unannounced upgrade?). These are 351mm standard, 346mm service limit. Oil level 110mm.

You won't get them mixed up - the E springs won't compress (free length) to the same length as the S springs.
 
does that mean if they are shorter than the minimum length that i should replace with new?
thanks
dwfranke1
 
dwfranke1 said:
does that mean if they are shorter than the minimum length that i should replace with new?
Click to expand...

Well, you could still ride it but your handling wouldn't be so clever. You could add spacers, or cut a length off and add a bigger spacer, but your best bet would be to put in some progressives. Cheap enough to do and a big gain for the money.
 
hampshirehog said:
Well, you could still ride it but your handling wouldn't be so clever. You could add spacers, or cut a length off and add a bigger spacer, but your best bet would be to put in some progressives. Cheap enough to do and a big gain for the money.
Click to expand...

Agreed.........
 
Instead of stuffing in a spacer, cut a couple of inches off the springs and make up for the lost spring length with an extra long spacers. Cutting the coils will increase the spring rate and stiffen up the front end. I've done this on several forks over the years and it works like a charm.
 
i put in a 1 inch longer spacer and 20w oil and the stock spring that were still 418mm back in and i now have front suspension, thanks for all the suggestions, i plan on progressive springs, but that will have to wait till the rest of the work is done
thanks
dwfranke
 
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