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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: BaneMaker on April 27, 2024, 01:58:08 AM
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Greeting and salutations - and thx for the membership. I’m new here, so a little background.
Chemical engineer, Denmark, 48 yo, got my motorbike license late in life (thank god), have 6 years of experience on my first bike (2018 R nine T). Ok competent for anything mechanical, but haven’t been wrenching on K bikes - ever.
I am going to pick up a 1993 K1100LT with 68000 km on the odo, and it has a leaky front fork that needs fixing asap. One issue is the obvious brake issue, but another is that it cannot get its MOT with it - and that is required for ownership change in this country. Well so I have to move fast.
Anyway - as I am going in, I want to make sure I change the parts that makes sense. I was planning on:
CLYMER MANUAL
Seals (what quality to get in EU if not OEM?)
Dust boots
Progressive springs (looking at RSK speedworks or Wilbers)
10w oil
What else? The copper/teflon sliding bushings for instance? Would you put gaters on it?
Appreciate any help for a noob.
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Welcome, frequently, the cause of leaky forks is s bit of dirt caught on the lip of the seal. A little hook made from the plastic of a water bottle can be slipped into the gap to pull out the dirt that is causing the trouble. It doesn't work every time, but often enough to make it worthwhile trying.
https://www.ebay.com/itm/152264097610?
Once you have forks working without leaks, it is wise to install fork boots to keep the seals clean. In the U.S. we use Rancho 1952 shock boots.
https://www.ebay.com/itm/235522168984?
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Just get the OEM fork seals.
The factory springs are progressively wound. (for 4 valve Ks) You only need new springs if you want stiffer springs.
You can make your own fork seal cleaner out of a thin piece of plastic like a plastic business card.
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Thank you much gents - I’ll try the cleaning. What do you think about the parts - provided I DO get in there. Bushings?