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Discussion Starter #1
I'm wondering if I can bolt an 07+ shock on my 05?
information like the distance eye to eye, size of the eyes?
 

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check a parts outlet (cheapmotorcycleparts.com) to see if part nos. are different. If I can figure it out, I will measure my 2008 shock for you.
 

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Discussion Starter #3
Modifying the Preload Unit

Ok I was looking around at shocks. a junk yard who specializes in metric bike parts says yes they are all the same
The official suzuki dealer parts catalog, has the 07 part numbers in this section are rearranged compared to 05

I made up a spring compressor & took the spring off & disassembled the preload unit
The compressor is made up of:
1- 9" x 9" x 1/2" plywood, 2 1/4" hole
3- 1" x 1" x 6" angle iron 1/2" holes 5" apart
3- 1/2" all thread
9- 1/2" nuts
3- 1/2" flat washers
 

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Discussion Starter #4
Modifying 2005 an400 Preload Unit

I reassembled the pre-load & used air to determine the total travel is 12mm
Substituting a spacer for the remote gas adjuster thing
I found that 2 1/2" pvc pipe, was slightly too large to be a spacer, cutting a 1/4" out made for a snug fit
the spacer goes between the adjuster "piston" & body
12mm being the max I went with 10mm, so I can quit dragging the centerstand lever

Compressing the spring below the collar, means that after unscrewing the all thread, the angles are trapped between the spring & the collar
Removing one of the all threads, allowed them to be popped out without any danger
 

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Discussion Starter #5
2005 an400 Rear Shock Dimentions

346mm eye to eye extended
305mm eye to eye compressed
the clevis is 30mm id x 10mm hole
the top mount is 30mm od x 10mm hple
the spring is 80mm od, 73mm od[clevis end] x 197mm long, the coils 10mm

the figure for compressed may be smaller, I had to work against the gas charge in the shock...
 

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I wondered if installing a softer spring on the rear shock would help soften the ride in 1 up riding. I figure it is set up for the weight of 2. Didn't know there was a gas charge, good to know.
 

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Discussion Starter #7
Pre load adjuster

I took apart the adjuster "sender" unit
The way it works is hydraulic, the knob runs a threaded shaft, which pushes a piston, the oil transmits the position to the receiver/actuator pushing on the spring
Since the stroke of the shock fairly short, due to the linkage the few mm the actuators moves is multiplied by 3 or so
My adjuster had lost enough oil to no longer work

Unfortunately I didn't think to measure sag with the preload set to 0, I'll have to judge the results by the ride :D
 

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Discussion Starter #8
Finally got it back together
I figure the spacer equals about 18 out of 22 clicks
Sucks up everything without complaint
Try as I might, I couldn't drag the side stand in the usual places
The seat height is slightly higher, but I added a sheepskin cover :D
 

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I'm sorry, @Garthhh, but i can't understand what's happening here.

You took a 07+ rear shock absorber and .... added an adjustable preload?
I don't get what you've done, sorry.
 

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Discussion Starter #10
Earlier in the process of troubleshooting/repair, I considered buying a used 07 or newer shock as a replacement
I put in a fixed spacer in the stock adjuster for an 05 shock,
Changing the amount of preload on the spring will now require changing the spacer

Next up more preload for the forks & thicker oil
 
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