ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-08-2008, 01:23 PM   #61
Zerodog
Beastly Adventurer
 
Joined: Jun 2006
Location: SLC, UT
Oddometer: 1,233
Man it is the linkage on that bike screwing with you and a PDS shock. You do need a straight rate and it does need to be pretty light. Something like an 8.2? It will depend a lot on what the leverage is on your linkage. You might need to get a very light one. You definately do not need a progressive spring. That would be progression from the linkage, PDS system, and a spring.
Zerodog is offline   Reply With Quote
Old 05-08-2008, 02:01 PM   #62
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
Yeah, It had a PDS 8 spring on it i think. It was one of the heavier ones. The stock spring calced out to about 277#'s with very little pre-load. So I went up about 10% in spring rate from a stock KLR. The PDS spring calced out like a strait rate came out to be about 528#'s

The valving was the really weird part, I've never seen Digressive valving done like that. Usually they just cut a concave taper on the face of the piston. The 2 piece shims would make it much easier to adjust though, I'm going to have to keep that in mind for the truck world.

As for the pics, I'm working on it. For some reason last night I decided to hack into the wiring loom to get rid of all the extra crap in it. Colored spaghetti anyone?
BDKW1 is offline   Reply With Quote
Old 05-08-2008, 05:14 PM   #63
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
OK, the PDS spring was actually a 76-95/260

Super trick reservoir mount


Hose routing and some electrical crap that needs to move


New mount and adjuster.


And the new links


I don't know if you can see it, but in the last pic the kickstand is cracked where the tube is welded on to the top lug ( thanks for knocking My bike over Mike). I need to make it a little longer and straiten it anyway.
BDKW1 is offline   Reply With Quote
Old 05-08-2008, 08:23 PM   #64
Zerodog
Beastly Adventurer
 
Joined: Jun 2006
Location: SLC, UT
Oddometer: 1,233
I wouldnt call it digressive. It is progressive. The split shims suck. They are used as a funky 2 stage system. Most tuners get rid of them and none of the newer 05 and up shocks use them.

Your issue is with the secondary compression stack. And the needle transition. The secondary comp should be really light so the primary piston does most of the work.

With the linkage you just don't need so much damping deeper in the stroke.
Zerodog is offline   Reply With Quote
Old 05-08-2008, 10:51 PM   #65
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
Quote:
Originally Posted by Zerodog
I wouldnt call it digressive. It is progressive.
Really? That's not how I see it working. Bilstien is really fond of this, On theres, they concave valve face pre-loads the shims so that the initial blow off pressure is higher. After blow off, the rate is the same as a regular stack. With the KTM stack, the 2nd split washer has a thinner inner shim and the outer is a little thicker pre-loading the stack above the second shim. This would have the same effect as the concave face. No?

Basiacally what I did was swap the top shim with #2 on both comp stacks and rebound on the main piston. No more pre-load and light low speed damping. I lightened up the comp on the secondary piston as well. I left the floating 1ST shim deal on the rebound though.

I custom (die grinder shhhhhhh) ground a little ramp on the needle to slow that down some too.

If the high speed is still to stiff, which I think it might be, I'll move the 3rd shim on the comp stack to the top too......
BDKW1 is offline   Reply With Quote
Old 05-10-2008, 06:21 PM   #66
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
SIDETRACK!!!!!

Well, as I was working on the shock, the wiring harness really started to bug Me. Way to much crap in there that doesn't need to be there.

Did you know you can cut all this out and the bike still runs fine?



Plus I needed to move the CDI box and all that other junk to make way for the other radiator.



I cut the stock bracket and welded it to the frame, everything now fit in the center of the tank.





Whole I was there, I put in a PCV valve I got at Napa. Its a nice right angle one that I plumbed to the currently unused vacuum port.



How does it work? beats Me, I'm going riding tommorow.......
BDKW1 is offline   Reply With Quote
Old 05-25-2008, 05:45 PM   #67
rufus
We're burning daylight...
 
rufus's Avatar
 
Joined: Sep 2004
Location: Coweta Oklahoma
Oddometer: 3,940
How did the ride go?
rufus is offline   Reply With Quote
Old 05-25-2008, 06:42 PM   #68
guns_equal_freedom
Beastly Adventurer
 
Joined: Jul 2007
Oddometer: 5,427
Quote:
Originally Posted by BDKW1
Plus I needed to move the CDI box and all that other junk to make way for the other radiator.


Details please.
guns_equal_freedom is offline   Reply With Quote
Old 05-26-2008, 12:51 PM   #69
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
Quote:
Originally Posted by guns_equal_freedom
Details please.
Working on it.......

Still haven't got that ride in Too many Honey-do's.......
BDKW1 is offline   Reply With Quote
Old 05-26-2008, 03:33 PM   #70
klxmack
king of the box
 
klxmack's Avatar
 
Joined: Nov 2006
Location: Toronto
Oddometer: 493
I just puked out my dinner!

I would have cut the frame first!






Quote:
Originally Posted by BDKW1
Well, after a nice long off-road trip to the San Felipe 250 I have come to a couple of conclusions on My KLR650. The front fork swap was totally worth it and I need to get My arse moving on the rear suspension. Actually, it needs to move without My arse moving, but whatever.......

I want this thing to ride like a 73 Caddy Fleetwood on the street and still be able to hit the whoops like My KLX 300.

So, to that end I got a White Power PDS shock from a KTM for a transplant.

Wussy stock shock, meet your replacement!



Wait, the reservoirs in the wrong spot? Hold on a second, there, this should fix that......



More later..........


P.S. I'm just using this shock to watch the KTM guys twitch
__________________
Laws of the motorcycle universe.
1. Ya don't need a faster bike, just ride faster.
2. The natural state of a motorcycle is on its side.
3. My bike and its owner are faster than yours.
http://www.advrider.com/forums/showt...hlight=klxmack
klxmack is offline   Reply With Quote
Old 07-10-2008, 08:06 AM   #71
SamM
Jeep Overlander
 
Joined: Nov 2004
Location: West Virginia
Oddometer: 1,469
Whatever happened to this project?

I have a set of KTM 950 Adventure WP inverted forks, trees, brakes and a 950 rear shock sitting in my shop. I may do some measuring. A better idea may be to sell the 950 parts and have the stock KLR suspension redone by the pros.

Great project. Please update us on your progress.

SamM

SamM screwed with this post 07-10-2008 at 11:13 PM
SamM is offline   Reply With Quote
Old 07-10-2008, 08:30 AM   #72
holycaveman
Beastly Adventurer
 
Joined: Sep 2005
Oddometer: 14,379



Nice headlights
__________________
Banned for the truth.
holycaveman is offline   Reply With Quote
Old 07-10-2008, 12:24 PM   #73
BDKW1 OP
KL"X" not "R"
 
BDKW1's Avatar
 
Joined: Jul 2006
Location: SoCal
Oddometer: 896
Quote:
Originally Posted by SamM
Whatever happens to this project?
It works very well! Haven't riden it much latley as I have been real busy at work. Also been abusing the 300 on single track....

It needs a roller for the chain as the extra drop out gives the chain a little to much slack and it starts to make noise. May put one on the top side also. It really needs a real chain guide..... I'm working on that also.

So far, no regrets.
BDKW1 is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:55 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014