Rebound and Preload Adjustment on 2006 GT650

[Paul]

Hello everyone!

I ride a 2006 GT650 (naked/carbed) and am having some trouble with the front forks.

I’ve been trying to set up my front fork and noticed that when adjusting the rebound, the adjustment doesn’t stop no matter how much I turn the screw clockwise. I was expecting it to stop when I went all the way in the “H” direction, but that never happened. Does anybody know if this is normal? Did I assemble the fork incorrectly? How do you make this adjustment?

 

Another question I had is how preload is set on the forks.

 

Thank you all for your help. It is very appreciated 🙂

 

Paul

[♠️ M77]

Usually the fork is 50% preloaded or 60% , that is if its all the way zero and all the way full (excercise trail and error here) , or for example if it takes 10 full turns, assume 6 turns is the sweet spot , complimented with 15w fork oil but 10w is OK.  Korea tends to put the soft 5w which is too thin over here in UK with our winding roads lol.

If you take apart the fork assembly and inspect anything that’s causing the screw to go in a continous loop or you may have to rebuild/replace the faulty fork part.

[Paul]

Okay, so it’s not normal that the screw spins indefinitely. mmmmm

I’ll have to look into it.  How is preload adjusted?

 

Thanks again. Paul

[♠️ M77]

Paul wrote:

How is preload adjusted? Thanks again. Paul

Usually shortcuts are taken by adding very strong spacers on the springs , like some of the suzuki owners do (as some Suzukis do have KYB forks like Hyosung does but ofcourse Hyosung likes to be different design wise to avoid copyrights i guess)

[Paul]

Thanks for the reply.  I’ll let you know what I find out when I rip them apart again.

[George1133]

g’day Paul, how did you go with this? my forks have same problem, no stop on the rebound adjuster

[Author]

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