• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

TXC 310 Fork oil

GMP said:
Its a progressive rate ICS, or cartridge spring. IMO, better to adjust valving and retain a higher initial cartridge pressure with stock springs so the oil is more stable. The reason they feel soft initially is not the rate difference directly, that accounts for very little. Its because the cartridge oil is more aerated and cavitation more prevalent at lower pressure and higher top stroke velocities. I have a lot of experience with the Marzocchi PFP fork that uses an adjustable cartridge spring and runs MUCH higher pressure than a KYB even at its minimum setting. You run light valving and adjust the ICS preload externally, the difference is quite dramatic and you can demonstrate this to yourself in seconds with the turn of a wrench.
Click to expand...


thanks...I have a set of TC 50mm zokes with the tin coated fork legs on my WR.

They were tuned by FBF and I love them...soft on top but never seem to bottom.

I've changed oil on them and noticed the pre-load rings but never touched them. I thought they were for the main spring?
Anyway, specifically how do you change the ICS pre-load externally on those forks?
 
External ICS preload adjustment is unique to the Marzocchi PFP 48mm CC fork, used on Beta RR Race models and GGs. Its done with a knob on the cap. For KYBs you have to shim internally, and need to disassemble the cartridge and compression assy to do so. Main spring preload on all brand CC forks is done external to the cartridge.
 
GMP said:
External ICS preload adjustment is unique to the Marzocchi PFP 48mm CC fork, used on Beta RR Race models and GGs. Its done with a knob on the cap. For KYBs you have to shim internally, and need to disassemble the cartridge and compression assy to do so. Main spring preload on all brand CC forks is done external to the cartridge.
Click to expand...

Okay...I have the older 50mm TC 'zokes
 
Well I tried the Merge ICS springs and I like 'em.

Just like they said, the 1st 1/3 of the travel is light and plush and once you get past that it firms up quite a bit.
Kinda like my old 50mm TC 'zokes from Steve Lamson's racing program. I was told by Fred Hoess that those forks have almost no damping in the 1st 4 inches of travel.

That being said I don't think the Merge springs are a complete substitute for a full rock revalve but they are much better than stock and completely usable.

My 2cents.
 
I just had a re valve done locally on my 14 txc 310 by www.stsracing.ca with amazing results. It is like riding a completely different bike. Small nuggets and roots went unnoticed. I went from 12-50 to 12 48 gearing and the bike is now in its sweet spot for the tight stuff.. Rode a2014 TE250 and a 2014 Sherco 250 factory t smoker on the same ride and we all agreed the KYB was more supple in the initial to mid stroke.. I couldn't wait to get back on my machine.
Ellis did the Free Drill mod and a revalve.. Stock springs and 335ml of fluid. I am 200lbs.
 
mbr440 said:
I just had a re valve done locally on my 14 txc 310 by www.stsracing.ca with amazing results. It is like riding a completely different bike. Small nuggets and roots went unnoticed. I went from 12-50 to 12 48 gearing and the bike is now in its sweet spot for the tight stuff.. Rode a2014 TE250 and a 2014 Sherco 250 factory t smoker on the same ride and we all agreed the KYB was more supple in the initial to mid stroke.. I couldn't wait to get back on my machine.
Ellis did the Free Drill mod and a revalve.. Stock springs and 335ml of fluid. I am 200lbs.
Click to expand...

I'm the same wt as you.

I have .44 springs (which might have been softer than the stock .46 but they were 5mm longer so they feel the same to me and sag barely changed), and 325cc of oil (345 was in there stock).

What is the free drill mod?
 
Free Piston Mod... It is well documented on the web.. If I remember correctly it more about longevity than performance.. Others on here will know better.
My springs are .44 as well.
 
The Free Piston Mod makes the fork more reactive and plush. Stays planted in the ruts and less likely to climb out of a rut mid turn. A nice addition to the fork.
 
You must log in or register to reply here.
Back
Top