Untitled Document sh dim 04 - cadj needle
Untitled Document
 
Untitled Document
  Fk Valving   Sh Valving   Fk Dyno   Sh Dyno   Compare Dyno   Fk Info   Sh Info   List of Fork Records   List of Shock Records   List of Fork Dyno Tests   List of Shock Dyno Tests
 
   2010 CRF 250      (3295)   [334]
   sh dim 04 - cadj needle scroll down for needle and seat flow area click  [additional info]  below image
cadj needle
LINK SHOCK BLADDER
   cadj needle criteria for a vlpn match are:
     - m  [pistdia]
     - d  [needle taper]
     - n  [comp hole nBit]  <------
     - e  [ls screw thread pitch]
     - f  [clicks per turn]
     - The 'cadj desc' (directly below) consists of m, d, n.  We will assume if the first 3 match, e & f match as well.
  [smfg_fksh_bvcadjmv_pistdia_needletaper_cHole-nBit]
     showa_sh_cadj_23_15_#46      [concatenated]
 vlpn [bi_vlpn_scandl]  SR.CANDL23.450S06 
  done  Y 
   
    [cadj needle dimens from]  2006 RMZ 450 
 
 a [top needle dia] .50 
 b [taper ht] 8.4 
 c [bott needle dia] 5.0 
 d [needle taper] 15 °
 e  [ls screw thread pitch] [a/r] .75a 
 f [clicks per turn] 4 
 g [end/last click] 24 
 h [mfg] showa 
 j [fksh] sh 
 k [bvcadjmv] cadj 
 m [pistdia] [rnd] 23 
n  [comp hole nBit] [no mm]
  #46
 o [shaft comp hole dia] [seat] 2.05 
 p [oall ht] 20.5 
 comments
 For the Showa 23 cadj, we have recorded 3 different needles. All have a 15 deg taper, but the oall needle length varies. A couple of generalizations (but not exact) are the 23.5 mm needle was in an 01 RM 125 cadj with a low speed circuit. The 21.9 mm needle was in an 04 CRF 250 cadj with a #36 comp stem hole, and the 20.5 needle was from an 06 RMZ 450 with a #46 comp stem hole. Perhaps, he larger the hole, the further the needle goes in, requiring the longer length.

However, we do not have an exact list of what needle fits what bike. The list of bikes on this page is very approximate not accurate.

Also see [additional info]
 
Untitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled DocumentUntitled Document
   Record count 15    for cadj needle
     List of bikes with this part from bikeinfo table.
id's bike
(2)   [132]
LINK SHOCK BLADDER		 2005 RM 125
(184)   [133]
LINK SHOCK BLADDER		 2005 RM 250
(76)   [129]
LINK SHOCK BLADDER		 2005 RMZ 450
(186)   [242]
LINK SHOCK BLADDER		 2006 RM 125
(77)   [243]
LINK SHOCK BLADDER		 2006 RM 250
(33)   [245]
LINK SHOCK BLADDER		 2006 RMZ 450
(368)   [284]
LINK SHOCK BLADDER		 2007 RMZ 250
(173)   [295]
LINK SHOCK BLADDER		 2007 RMZ 450
(1173)   [364]
LINK SHOCK BLADDER		 2008 RM 125
(1174)   [365]
LINK SHOCK BLADDER		 2008 RM 250
(883)   [334]
LINK SHOCK BLADDER		 2010 CRF 250
(1155)   [345]
LINK SHOCK BLADDER		 2011 CRF 250
(1341)   [388]
LINK SHOCK BLADDER		 2012 CRF 250
(1502)   [419]
LINK SHOCK BLADDER		 2013 CRF 250
(1614)   [432]
LINK SHOCK BLADDER		 2014 CRF 250
  [cadj needle img  240 x 320]
  SR.CANDL23.450S06
 

[additional info]
  Untitled Document comp_var = bi_vlpn_scandl
SHOWA bikes that have [additional info]
    SR.CANDL23.250H04
    SR.CANDL23.450S06 *
    SR.CANDL28.250S11
    SR.CANDL23.250H10
    SR.CANDL23.125S01
 
 
  copy these values to C: / ReStackor / Work_Dir / clkdat.in  
showa_sh_cadj_23_15_#46, needle taper
2.05
Nclk    Dclk   [mm]
1       1.95
24     0
 <-- needle dimens for restackor
   
       
     A = always 90°    90
Calculated needle taper height:
(compare to needle ht above)
(as if you stand there and measure it)
(adjust narrow needle dia to fit measured ht)
   calcHt = 8.4 
   enteredHt = 8.4
 
     B = calculated    75
     C = needle taper    15
     sinA    1.0000
     sinB    .9659
     sinC    .2588
     a   [as if no top needle dia]    9.66
     b   [ht as if no top needle dia]    9.33
     c   [1/2 of bott needle dia]    2.5
     needle travel per click    0.1875
     new ht b
     [for calc below] 		  3.83
     new bott needle dia
     [for calc below] 		   2.05  
 
needle and seat flow area, easily compared to other shocks
     

clicks

 needle travel
[mm]		 dia of needle
at this point 		flow area
[mm^2]		 equivilant bleed
hole dia
0 0 0 0 0
1 0.188 1.95 0.31 ( 0.63 )
2 0.375 1.849 0.62 ( 0.89 )
3 0.563 1.749 0.9 ( 1.07 )
4 0.75 1.649 1.16 ( 1.22 )
5 0.938 1.548 1.42 ( 1.34 )
6 1.125 1.448 1.65 ( 1.45 )
7 1.313 1.347 1.88 ( 1.55 )
8 1.5 1.247 2.08 ( 1.63 )
9 1.688 1.147 2.27 ( 1.7 )
10 1.875 1.046 2.44 ( 1.76 )
11 2.063 0.946 2.6 ( 1.82 )
12 2.25 0.846 2.74 ( 1.87 )
13 2.438 0.745 2.86 ( 1.91 )
14 2.625 0.645 2.97 ( 1.94 )
15 2.813 0.545 3.07 ( 1.98 )
16 3 0.444 3.15 ( 2 )
17 3.188 0.344 3.21 ( 2.02 )
18 3.375 0.244 3.25 ( 2.03 )
19 3.563 0.143 3.28 ( 2.04 )
20 3.75 0.043 3.3 ( 2.05 )
21 3.938 0 3.3 ( 2.05 )
22 4.125 0 3.3 ( 2.05 )
23 4.313 0 3.3 ( 2.05 )
24 4.5 0 3.3 ( 2.05 )
25 4.688 0 3.3 ( 2.05 )
26 4.875 0 3.3 ( 2.05 )
27 5.063 0 3.3 ( 2.05 )
28 5.25 0 3.3 ( 2.05 )
29 5.438 0 3.3 ( 2.05 )
30 5.625 0 3.3 ( 2.05 )
31 5.813 0 3.3 ( 2.05 )
32 6 0 3.3 ( 2.05 )
33 6.188 0 3.3 ( 2.05 )
34 6.375 0 3.3 ( 2.05 )
35 6.563 0 3.3 ( 2.05 )
36 6.75 0 3.3 ( 2.05 )
 
 

Untitled Document Untitled Document
grayed out links unavailable
for this demonstration
    -shock info
    -shock springs
   shock
    sh dim 00 - shock *
   sh_cadj                    
    sh dim 01 - cadj assy
    sh dim 02 - cadj pist *
    sh dim 03 - cadj shaft *
 •   sh dim 04 - cadj needle *
    sh dim 05 - cadj spr flsprs *
    sh dim 07 - cadj housing_cap
   mv pist
    sh dim 08 - mv pist / shims *
    sh dim 09 - mv pistband / drag
   needle shaft clevis
    sh dim 10 - nsc assy
    sh dim 11 - nsc reb_needle *
    sh dim 12 - nsc shaft
    sh dim 13 - nsc reb_insert
    sh dim 14 - nsc clevis *
   seal head
    sh dim 15 - shd case
   body
   sh dim 17 - body  
   bladder
   sh dim 18 - bladder_cap