I need a XR650L Shock for a project...

22 replies to this topic
  • Kenzo

Posted 03 October 2009 - 09:52 AM

#1


like the title says i need a L shock...and cheap wud be nice :D

i'm planning on documenting a service/oil change along with sum experimenting with the shim stack, maybe reworking the valve and/or gold valve installation.

currently i've found the shock rebound dampening to be to slow even on the minimum setting (over dampened) and it's beginning to make a wheezing sound as it rebounds...i don't want to risk having the bike out of service so that's why i'm look'n for a second shock to experiment on.

my goal is to find a gud plush setup for agressive woods/hare scramble riding :thumbsup:

so if u have or know where there's a reasonably priced L shock let me know :smirk:

another question is the newer 600R shock the same as the L's??? ...i looked at a 97 600R shock that looks identical but it is listed as a different part number???

TIA,

Kenny

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  • lateapex31

Posted 03 October 2009 - 12:00 PM

#2

My 1995 XR600R shock fit perfectly on my 2005 XR650L. Damping was a bit different though which probably explains the different part numbers.

  • Kenzo

Posted 03 October 2009 - 01:00 PM

#3

lateapex31 said:

My 1995 XR600R shock fit perfectly on my 2005 XR650L. Damping was a bit different though which probably explains the different part numbers.

cool...

...the 600R stock shock spring is definately lighter. :smirk:

i knew at sum point the 600R went from the older remote reservoir w/hose to the newer style w/fix'd remote reservoir.

looks like i've got a 600R shock located...so if anyone knows of any problems w/ it on a L let me know :thumbsup:


:cheers:

  • amitx

Posted 03 October 2009 - 02:02 PM

#4

i guess u should use 600R shim stack to get what u want from the L shock.
try to find the L shim stack and compare it with the 600R.

  • valvesrule

Posted 03 October 2009 - 10:24 PM

#5

I've got both. The L shock has a larger diameter body and spring than late 600. They are almost identical in design externally but valving may be quite different. They should be close enough to the same to do what you want with either. Shim stack may be different in execution but the same in concept. I'm thinkin' you're going after that sharp spike in mid stroke compliance?

  • Kenzo

Posted 04 October 2009 - 07:25 AM

#6

valvesrule said:

I've got both. The L shock has a larger diameter body and spring than late 600. They are almost identical in design externally but valving may be quite different. They should be close enough to the same to do what you want with either. Shim stack may be different in execution but the same in concept.

hummm...now u got me wondering...because i want to use the same spring :smirk:

BUT straight from Eibachs site both the 2001 XR650L & 1997 XR600R use the same spring/part number:

P/N 890.0115.1 - 63.1 x 59.1 x 217mm ...this is the 11.5Kg/mm Eibach Spring.

ok...after a little more research(RaceTech site/Honda Shop Manual) the 600R uses a Showa 44mm shock and the L uses a Showa 46mm shock...they can use the same springs and most parts with the exception of the Shock Seal/Head Assembly and different Gold Valve whichs indicates a slightly larger piston diameter for the L...so get'n a 600R shock may work BUT doesn't really accomplish wut i want to do with this project...
:bonk:

valvesrule said:

I'm thinkin' you're going after that sharp spike in mid stroke compliance?

actually the shock has been work'n gud but as my speed increases i've been bang'n off alot of roots and woops... now when i compress the suspension(in the garage) the rebound is VERY slow(fastest setting) and it now is make'n a wheezing sound on rebound...seems sluggish as hell...just think'n i may have damaged it and there has to be sum better dampening with a little work. :thumbsup:

:cheers:

P.S. I'M STILL LOOK'N FOR A CHEAP L SHOCK TO PURCHASE.

TIA,

Kenny

  • NW ADV

Posted 04 October 2009 - 08:16 AM

#7

Kenzo, I looked into this a while back, and I think the 600 shock was slightly longer too. Only about .5 inch IIRC. I think there were specs on the Works Perf website.

BP

  • valvesrule

Posted 04 October 2009 - 11:32 AM

#8

NW ADV said:

Kenzo, I looked into this a while back, and I think the 600 shock was slightly longer too. Only about .5 inch IIRC. I think there were specs on the Works Perf website.

BP

I saw that on their outlet site. Can't say one way or the other cause I haven't measured. I think they said it was only about a quarter inch though.

  • Kenzo

Posted 13 October 2009 - 06:31 AM

#9

well it looks like i've found two L shocks at a reasonable price for my project :thumbsup: :thumbsup:

gunna have to get BWB outta TT retirement to help with changes to the shim stack, valve, etc... :smirk:

if anyone knows wut shim stack RaceTech supplies w/ it's Gold Valve or even the 600R shock shim stack it wud be helpful.

TIA


:cheers:

  • Kenzo

Posted 15 October 2009 - 06:45 AM

#10

...Brucey!!! (BWB),

i've got a gud used L shock and a spare parts shock on the way...gunna need ur input... :smirk:


:cheers:

http://www.thumperta...8035&highlight=

  • xjz

Posted 15 October 2009 - 11:01 AM

#11

I bought a '93 XR600 shock for my '88 XR600R. The 'new to me' shock needs the rubber bumpstop replaced on the shock and I will have to tear it apart to do it. I'll try to get photos and take some measurments of the shims when I do it but I'm not sure when I'm going to find the time to get started on it though. So you may beat me to it if you can resurect BWB from his bike nothingness anytime soon.

  • Kenzo

Posted 16 October 2009 - 05:08 AM

#12

xjz said:

I bought a '93 XR600 shock for my '88 XR600R. The 'new to me' shock needs the rubber bumpstop replaced on the shock and I will have to tear it apart to do it. I'll try to get photos and take some measurments of the shims when I do it but I'm not sure when I'm going to find the time to get started on it though. So you may beat me to it if you can resurect BWB from his bike nothingness anytime soon.

although the 600R & L shocks have sum common parts but the valving, piston, etc...are different :smirk:

hopefully my project shock will be here next week and i can tear into it and document the valving/rebuild :thumbsup:

Bruce(BWB) is just bored and spending way too much time at the Town Square board :p


:cheers:

  • xjz

Posted 24 October 2009 - 09:30 PM

#13

Kenzo said:

or even the 600R shock shim stack it wud be helpful.
:cheers:

Here ya go.
Posted Image

I pulled my 93 XR600R shock apart today and measured the stack up so I can get in on this help if BWB ever chimes back in.

Here is the Rebound side pulled apart
Posted Image

Here is the Compression side pulled apart
Posted Image

Here is what the stock valve looks like. The compression holes are the oval shaped ones and the round ones are the rebound side.
Posted Image

And all my mess.
Posted Image

  • Kenzo

Posted 25 October 2009 - 09:11 AM

#14

cool...

...i've got two used L shocks settinh here next to my desk :smirk:


not sure when i'll bust into them...freak'n ribs are still hurt'n from last weekend :foul:


why don't u PM Bruce???


TIA


:cheers:


P.S. ...have u remover the bladder yet and r u replacing any of the seals, etc... ????

  • Kenzo

Posted 25 October 2009 - 09:33 AM

#15

just found out that one of the shocks wus "re-worked" by a suspention tuner... :smirk:

curious if they change the shim stack...hell, it may have a gold valve in there. :thumbsup:


:cheers:

  • xjz

Posted 25 October 2009 - 10:12 AM

#16

Kenzo said:

...i've got two used L shocks settinh here next to my desk :smirk:

P.S. ...have u remover the bladder yet and r u replacing any of the seals, etc... ????

No I haven't removed the bladder from this shock yet, I was hoping I could re-fill everything without having to remove it and still not get any air bubbles in the oil. I did pull the bladder out of my old '85 shock thats currently on my bike when I first got it and serviced it. I though if I top off the shock thru the compression adjustment knob hole (after taking it out) it would allow all the air to go up and out saving me a step.

Kenzo said:

just found out that one of the shocks wus "re-worked" by a suspention tuner... :smirk:

curious if they change the shim stack...hell, it may have a gold valve in there. :thumbsup:

Thats cool. So if you have 3 shocks now, are you going to pull apart both your "new" shocks and rework them both so we can see what the stock and the modified shim stack look like?:worthy:

  • Kenzo

Posted 25 October 2009 - 10:48 AM

#17

xjz said:

No I haven't removed the bladder from this shock yet, I was hoping I could re-fill everything without having to remove it and still not get any air bubbles in the oil. I did pull the bladder out of my old '85 shock thats currently on my bike when I first got it and serviced it. I though if I top off the shock thru the compression adjustment knob hole (after taking it out) it would allow all the air to go up and out saving me a step.

not sure if u can do it that way...


xjz said:

Thats cool. So if you have 3 shocks now, are you going to pull apart both your "new" shocks and rework them both so we can see what the stock and the modified shim stack look like?:worthy:

yup that's the idea...

found sum info here that may help>>>

http://motoman393.thumpertalk.com/tech/goldvalves.html

it's from this thread http://www.thumperta...ve+installation

:cheers:

  • Kenzo

Posted 25 October 2009 - 11:53 AM

#18

sup Bruce...


...will take plenty of pics and measurements :thumbsup:


the funny thing about the shock i have that a "builder" reworked...it has air in it :bonk: yup...i thought u needed to remove the bladder :smirk:


i believe i read u like to replace the bladder and seals when u do ur overhauls...correct?


wut weight shock oil did the 600R boyz run?


and drilling a bleeder hole and notching is a bit confusing on ur sight...cud u elaborate?


TIA


:cheers:

  • BWB63

Posted 25 October 2009 - 12:03 PM

#19

To start with you can't rebiuld/refill a shock without removing the bladder. The XR600R and XR650L are very simular to the XR650R shock on the XR650R shock rebiuld page. The only thing that might help is using the traffic cone method and then the XR650R manual method of refilling the shock with fluid. If my tank is not full I do both to make sure there is NO air left in the shock. Gold Valve shim stacks are not the same as stock shims used with stock valve. Drilling out the stock valve is good if you are going to add shims to the slow to mid crossover. Pictures would be way cool and if enough are taken and shared at a good quality I could make a XR600R/XR650L shim page that could be put on the www.borynack.com/XR650R server as a XR600r/XR650L shock page.
This page is the closest thing you will find to the XR650L shock.
http://borynack.com/XR650R/xr650r_shock.htm


For a Basic reshim for what you have that will make a noticable difference. I would do what we did on our 1992 Baja 628cc bike.
Rebound was from the shim down:
If you add your slow stack you will see that you are at 1.6mm of shims but, they are few slow thick shims
(8) .30mmX34mm shims
(1) .10mmX28mm
(1) .30mmX34mm
(1) .30mmX33mm
(1) .30mmX32mm
(1) .30mmX30mm
(1) .30mmX28mm
(1) .30mmX26mm
(1) .30mmX24mm
(1) .30mmX22mm

Compression
(7) .20mmX38mm
(1) .10mmX28mm
(1) .60mmX38mm
(1) .30mmX32mm
(1) .30mmX30mm
(1) .30mmX28mm
(1) .30mmX26mm
(1) .30mmX24mm
(1) .30mmX22mm

If you don't want to buy a bunch of shims you can do what we did in the beggining (1986). We would take the 34mm shim from the compression side and add it to the bottom of the slow stack in the rebound stack (Just above the .10mmX28mm shim) and swapped the .60mmX38mm shim in the campression to be below the .10mmX28mm shim in the compression stack and moved the .20mmX38mm shim that is below the .10mmX28mm shim to be above that same shim.

We were running Dexron II with the setup just above, I got the bikes mixed up and they have different shims to start with. 5wt would be good but, make sure it is shock fluid not fork fluid. You can use shock fluid in the forks but, I would use fork fluid in a shock. It fades much sooner.

www.borynack.com/XR650R


Kenzo said:

although the 600R & L shocks have sum common parts but the valving, piston, etc...are different :smirk:

hopefully my project shock will be here next week and i can tear into it and document the valving/rebuild :thumbsup:

Bruce(BWB) is just bored and spending way too much time at the Town Square board :p


:cheers:
Well, actualy I have been working tons of hours and when I find down time at work I cautch up on world news on TS. Went to the evil gun show yesterday and hunting deer/bear every morning that I am not working. Work is just now slowing down and that will help to give me time for Baja 1000 suspensions.

  • xjz

Posted 25 October 2009 - 04:26 PM

#20

When I rebuilt my 85 shock I didn't replace the seals because they didn't come in time but it hasn't leaked yet so I haven't put the new seals in it yet, although I have the seals now for it. With my new 93 shock I bought the seals and a new rubber bumper up front because it was missing the rubber bumper and that is the primary reason I'm pulling it apart.

I can take a few more pics like what you have on your website BWB when I put it back together but I'm going to have to get some more shims and apparently some different oil. I bought some Maxima 5wt fork oil because I couldn't hardly find any shock specific oil but if there is a big difference between their performance then I may have to go that route and find some shock specific oil in 3wt.:thumbsup:



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