Thread: K3 front end
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Old 19-07-25, 11:04 AM   #52
Fazer Fail
Junior Member
 
Join Date: Mar 2025
Posts: 26
Default Re: K3 front end

Hi all, sorry things took a lot longer than i expected and issues with his other bike diverted my attention.

So used a big syringe and took out 300ml of the Silkoline 15W and refilled with 305ml (estimated would have lost at least 5mm in the process) of the Silkoline 5W, by rough calculations makes the oil a slight bit thicker than 7.5W bit short of 10W.

Effect is night and day! full movement back on the forks, low speed damping feels good, if a little soft for my taste but spot on for my son who is much lighter than me.

I was genuinely surprised how thick the 15W was and the massive effect it had.

In summary low speed is compliant comfortable, but biggest difference is how much tighter it feels almost no dive when breaking very stable, but deals with high and medium speed compression well you feel it still but not jolted out the saddle just soaks it up but lets you know was there.

I have no fears of bottoming out the heavier springs are working well and I think they will prevent bottoming out along with better compression damping time will tell.

It exposed how soft the back was but as its an sv1000 shock just dialed up the compression and balanced the feel front and rear.

Rebound feels ok nice and quick but not bouncing I imagine as the oil heats up this might increase so something to keep an eye on.

Will need more testing but the 0.9 linear springs and YSS emulators and decent fork oil have transformed it no end, his mate who rides a 929 Fire blade felt it was softer but very close to his for feel and comfort.

I am very impressed so far for this application here is summary of what I have done

Welded up rebound holes on damper rods
Enlarged compression holes on damper rods
Drilled 2 extra compression holes in damper rod (given better advice would NOT do this)
Replaced springs with 0.9 linear from race tech
Fitted YSS PD 335 set at 2.5 turns out
Silkoline Fork oil mixed to suit (suggest 7.5W as start point)
Set fork tubes flush with top yoke (actual tube cap soits slightly proud)

Can i just say a huge thanks to all who contributed to this and helped out, really appreciate it big time!

Still need to dial this in fully set the bike uo for him but a couple of jobs to do before then.

Last edited by Fazer Fail; 19-07-25 at 11:08 AM.
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