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Suspension oil level

  • Thread starter Thread starter mdiller
  • Start date Start date
M

mdiller

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I cant find how much suspension oil goes into my front forks. They are aftermarket shocks, so they dont show up when I search for my bike. The closest match I can find is on Mr. Cycles .com under a '81 GS650E (front fork model X). I have searched online for the technical info for that bike, but am still stumped. Anyone have any ideas?
 
What bike do you have? How do you know the forks are not OEM? Pictures of the front end in question would help immensely.

Mark
 
It’s pretty safe to fill the forks based on measurement; pull out the springs and compress the front end all way. Forks should be filled approximately 5.5 inches from the top of the legs. Put everything back together and ride.
 
Thanks Nessism.

Mark, I have an '82 GS 650 GL, but from what I can tell the front end has been messed up by the P.O. The axle has been rebuilt, the brake is different from what is in the clymer manual, and so are the forks.

I have pictures but cant post them right now. I think I will go with the 5.5 method. Thanks for the help.
 
Be careful judging things by Clymer pictures. :eek:

I don't have my Clymer book with me, but it would not surprise me to find that they show L model forks, which definitely don't look like your E forks.

I agree with Nessism, 5.5 inches from the top, with the springs out and forks fully compressed.

While you have the springs out, why not slip a set of Progressive springs in there in their place? Lots of improvement.

.
 
I think you will have trouble finding progressive springs for an "E" model if that is what you have. I am going through this right now and for the GS650 "Progressive Suspension" only produce a spring for the "G" and "GL" models. Part Number 11-1106. In Australia they retail for $129, they would be cheaper in the U.S.

While I am on the subject can anyone tell me why the "G" and "E" model forks on the 650 are different. They both look fairly identical. Is the "G" model a heavier bike due to shaft drive and therefore a difference in damping or spring length, etc. Is there any way to find out the spring lengths of the different models from the part numbers on the fiches.
 
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