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Author Topic: Why are my Forks Different?  (Read 706 times)

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Offline turkey4me

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Why are my Forks Different?
« on: April 12, 2009, 11:02:47 AM »
I was replacing my fork seals and found two completely different fork seal surfaces.  Left fork had the seal sitting directly on a flat ledge the was level with the inside cylinder of the fork tube. 

Right fork tube had the seal sitting directly on a washer which when removed, the ledge was slightly below the inner fork tube cylinder.  This resulted in a grooved surface? 

Anyone have any idea what I'm talking about and why the forks are different or how to properly reinstall the new seals?

Bike is a 76 CB 750F but I have no idea what forks I have?

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Offline Hush

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Re: Why are my Forks Different?
« Reply #1 on: April 12, 2009, 11:05:16 AM »
Sounds like one of each from two different bikes?
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Offline Duke McDukiedook

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Re: Why are my Forks Different?
« Reply #2 on: April 12, 2009, 11:11:39 AM »
I had the same problem when I bought a supposed K5 fork from a salvage yard for the fork tube.
I decided to try and use the fork lower because the upper looked a little different than my K3. The K5 was more tapered at the section where it bolted into the fork lower casing.

I tried to take the seal out of the K5 and it was totally different from my K3 seal. I wound up beating the crap out of the metal lip on the lower case and the seal seemed to be integrated into the lip. The parts fische I have showed the fork parts from K3-5 to be about the same.

I wonder if the lower case was a K5, it had a newer K7-8 dust cap on top...
« Last Edit: April 12, 2009, 11:14:32 AM by Dukiedook »
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Offline WFO

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Re: Why are my Forks Different?
« Reply #3 on: April 12, 2009, 11:56:17 AM »
Looks like a PO swapped out a damaged fork leg with something that was similar.
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