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All About Brakes & Suspension Everything from the best brake pads to use, installing new brake lines,
swing arm swaps, adjusting your suspension or rebuilding your forks.
Everything you need to know on those topics and so much more is here.

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Old 05-03-2012, 10:00 AM   #1
Vishnuisgod
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Default Kat 1100 front fork valving

I finally got the bolt out with the stripped head...I took it to my local shop...haha. i dont have the patience nor the skill for that.

I took a friends bike out while I was waiting for it to be done ( I should know better than to ride a new bike, a kawi z750), and now I realize my front suspension needs some love. I already have progressive springs. i was looking at the fiche, is there anything I can adjust to firm up the suspension, I already plan on using 15W oil, up from the 10W last time. I know these arent damper rod forks, but they dont seem like cartridge forks either...I dont see anything I can adjust. Is there anything I can adjust (other than preload?)?

Cheers
Alan
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Old 05-03-2012, 10:14 AM   #2
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Emulators is what you want.

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Old 05-03-2012, 10:47 AM   #3
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Quote:
Originally Posted by Vishnuisgod View Post
I finally got the bolt out with the stripped head...I took it to my local shop...haha. i dont have the patience nor the skill for that.

I took a friends bike out while I was waiting for it to be done ( I should know better than to ride a new bike, a kawi z750), and now I realize my front suspension needs some love. I already have progressive springs. i was looking at the fiche, is there anything I can adjust to firm up the suspension, I already plan on using 15W oil, up from the 10W last time. I know these arent damper rod forks, but they dont seem like cartridge forks either...I dont see anything I can adjust. Is there anything I can adjust (other than preload?)?

Cheers
Alan
Why do you say they are not damper rod forks?

Also the best first step you can do is junk the progressive springs, Progressive springs are soft on initial travel and then firm up towards the bottom of the travel. Get yourself a set of linear springs for your weight and start from there with a 15wt fluid that is rated in the mid 30's cSt @ 40 deg C. If money allows the emulators are a nice addition as it basically removes the limitations of a stock damper rod fork and gives you adjustability (Not externally though).

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Old 05-03-2012, 12:26 PM   #4
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Quote:
Originally Posted by Tmod View Post
Why do you say they are not damper rod forks?

Also the best first step you can do is junk the progressive springs, Progressive springs are soft on initial travel and then firm up towards the bottom of the travel. Get yourself a set of linear springs for your weight and start from there with a 15wt fluid that is rated in the mid 30's cSt @ 40 deg C. If money allows the emulators are a nice addition as it basically removes the limitations of a stock damper rod fork and gives you adjustability (Not externally though).

Tmod
I am no expert, but since I started to do more reading these things have led me to think that they are not damper rod forks, rather cartridge forks.

1. VX800 is a damper rod;
http://www.ronayers.com/Fiche/TypeID...p/FRONT_DAMPER

2. Kat 1100 fork internals are different from the above fiche;
http://www.ronayers.com/Fiche/TypeID...MPER_1989-1993

3.these two sites show me something similar to what I pulled out, but I cant see how they are adjustable in any way (other than preload);
http://www.fjmods.btinternet.co.uk/emulators.htm
and
http://racetech.com/html_files/DampingRodForks.HTML


back to you...
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Old 05-03-2012, 12:54 PM   #5
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The name is "damper assembly" on the fiche.... so ... that's a pretty good indicator.
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Old 05-03-2012, 01:55 PM   #6
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Quote:
Originally Posted by Vishnuisgod View Post
I am no expert, but since I started to do more reading these things have led me to think that they are not damper rod forks, rather cartridge forks.

1. VX800 is a damper rod;
http://www.ronayers.com/Fiche/TypeID...p/FRONT_DAMPER

2. Kat 1100 fork internals are different from the above fiche;
http://www.ronayers.com/Fiche/TypeID...MPER_1989-1993

3.these two sites show me something similar to what I pulled out, but I cant see how they are adjustable in any way (other than preload);
http://www.fjmods.btinternet.co.uk/emulators.htm
and
http://racetech.com/html_files/DampingRodForks.HTML


back to you...
Ahhh that is when what year it is in the title pays off as the 88 was a damper rod and 89 and newer are the cartridge style. The older forks like that I have had in the past have a bleed hole about center on the cartridge tube and they act like a damper rod fork system but have a cartridge (Marketing scheme I am sure). Some cartridge forks like the Triumph ST have the look of a conventional but cartridges inside and they are not externally adjustable for either rebound or compression as well.

Take a look at the cartridge and see if there any holes about mid tube. Better yet take a pic and post it back.

Tmod

Last edited by Tmod; 05-03-2012 at 01:58 PM..
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Old 05-10-2012, 08:59 PM   #7
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its taken me a day or two to get a pic, but this is the inside...

ignore the tweaked fork, it was just rolling around from another project.

The rod that sticks out the top (to the left) moves up and down with a piston inside the tube.
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File Type: jpg IMG_0413.jpg (96.5 KB, 25 views)

Last edited by Vishnuisgod; 05-10-2012 at 09:03 PM..
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Old 05-10-2012, 09:09 PM   #8
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Yep Showa cartridge there, They are revalvable on both rebound and compression.

Should be able to just push the base valve up into the cartridge and remove the clip and pull the base valve out. Take the nut off the damper rod and the rebound will come out of the bottom as well.

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Old 05-10-2012, 09:38 PM   #9
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no clips anywhere, I was trying to twist the bottom plug out with my circlip pliers and broke a tip. Bullox!

Theres not a clip at the top either....

Notice in the first pic, there is a dimple. There is one opposite of it too. Might those be used to hold the plug inside, versus threading ?

The second pics shows diddly squat, but theres no upper clip....
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File Type: jpg IMG_0419.jpg (74.9 KB, 21 views)
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Old 05-10-2012, 09:41 PM   #10
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Well that sucks, Are those tubes you can experiment with or are those the ones from the bike?

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