REstackor

[mog]

this is the wp older style pds piston (primary)

D.rod 18 r.port 14 d.bleed

3.6

D.valve 50 d.port 7 d.leak

0

w.seat 1.8 w.port 15 d.thrt

7

Vspec Mvc N.port 3 N.thrt 6 MAX.clks 34

comp

this is from Florin(floating) he had to approximate the area of the ports as its 2 holes.

[mog]

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

[no hand]

Thanks alot Marcus. Hope someone chimes in with your WP info.

[mog]

i got it and posted it seb

[mxaniac]

So if I bought restackor from what I'm reading I would be able to drill out my 2006 KX450F base valve pistons and put in the measurements and try to tune them to operate like a known good setup? Does it take in to consideration the ICS spring rate? Does it do shocks?

[kan3]

yes

yes

yes

[mxaniac]

Hopefully that was a response to my question and not a Meg Ryan impression from When Harry Met Sally. LMAO

Thanks,

Rich

[KTM-Lew]

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

Man I hate this board...they seem to feel the need to update every couple years and it's always a cluster&%$#@!...does the quote make ANY sense?

[KTM-Lew]

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

The quote I'm looking at has the appropriate info before it is posted although it's scattered all over the page. Anyone else see this? If I copy & paste I then see this before i post.

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

Freaking gibbrish...

[KTM-Lew]

Lets try this:

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

[KTM-Lew]

I copy & pasted to Notepad, then copy & pasted from notepad...even then it's all crammed together so as to be nearly unreadable...I'll just go back to KTMTalk...

[KTM-Lew]

I assume this is what it should look like?

Geometry Summary

2009 YZF250

Fork Mid Valve

D.rod12.5

D.valve24

w.seat1

VspecMVc

r.port5

D.port4.5

W.port10.5

N.prt3

D.thrt0

n.thrt0

D.bleed2.25

N.clicks23

Geometry Summary

2009 YZF250

Fork Base Valve

D.rod12.5

D.valve34

w.seat1

VspecBVc

r.port5.5

D.port9

W.port9

N.prt4

D.thrt0

n.thrt0

D.bleed2

N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes

Dvalve 46

rod 16

seat 1.5

rport 9.5

Dport9.8

wport 12

nplt 4

Dthrt 5.1

nthrt 8

dbleed 4

rebound rport 10.5

Dport 6

wport 8

nplt 4

This board removes spaces and crams it all together...fark it!

[mog]

Lol I gave up trying to make it look ok

[nine-thirtysix]

I'm new to Restackor but I couldn't find anything to calculate the blowoff system from the shock comp. adjuster.

Don't understand how it should make sense to calculate the caviation limit of the shock without the real damping forces or chamber pressures?

[mxaniac]

Are these 6 mm ID shims on the mid valve and 8 mm ID shims on the base valve?

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20 08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

[kan3]

They're 6mm on bv, 8mm on mvc and 6mm on mvr

[Vietze]

KYB 48 TCV

Yamaha YZ 125/250 2005

Base

Drod 12,5

Dvalve 28

w.seat 1.1

r.port 7.25

d.port 4.2

w.port 5.3

N.port 4

d.bleed 2.5

d.leak 0

d.thrt 4.0

N.thrt 4

reb

d.rod 12.5

D.valve 24

w.seat 1.1

r.port 6.45

d.port 3.3

w.port 5.5

N.port 4

d.bleed 3

d.leak 1.2 bleedhole + 1.15 bleedpassage pistonband

d.thrt 3

N.thrt 4

MV

r.port 6.85

d.port 3.45

w.port 7.9

N.port 4

d.bleed 3

d.leak 1.2 bleedhole + 1.15

[grayracer513]

Lets try this:

Geometry Summary 2009 YZF250 Fork Mid Valve D.rod12.5 D.valve24 w.seat1 VspecMVc r.port5 D.port4.5 W.port10.5 N.prt3 D.thrt0 n.thrt0 D.bleed2.25 N.clicks23 Geometry Summary 2009 YZF250 Fork Base Valve D.rod12.5 D.valve34 w.seat1 VspecBVc r.port5.5 D.port9 W.port9 N.prt4 D.thrt0 n.thrt0 D.bleed2 N.clicks20

08 KYB shock the d thrt thing is perhaps not accurate but you can see what i tried to do if you look at the piston, the port dimensions contacting the shims are larger than the through holes Dvalve 46 rod 16 seat 1.5 rport 9.5 Dport9.8 wport 12 nplt 4 Dthrt 5.1 nthrt 8 dbleed 4 rebound rport 10.5 Dport 6 wport 8 nplt 4

The problem that you're having is that when you copied the text from the source page, your browser pulled a whole bunch of HTML formatting code with it. If it shows up like that, it's because the full WYSIWYG editor on the board software sees it but doesn't treat it as code, it just displays it. To avoid the problem, use the icon at the upper left corner ("Toggle editing mode") to switch to a simple text mode that will not, in most cases, display the code tags. You can flip it back once you've pasted if you want.

[mxaniac]

If I put in the values for a 2009 YZ250F posted here and make it a baseline then compared it to a 2007 CR250F as posted here with the stacks from valving logic the outputs are worlds apart. I would imagine that the performance of modern suspension components isn't really worlds apart so either I'm using the tool wrong or the models aren't to the point where one can calculate absolutes, just predict the relative affect of changes.

Edited May 10, 2012 by mxaniac

[mog]

i would expect big changes between those 2 forks. One is very stiff and one is plush, does it show that?