Author Topic: 1975? CB550 fork teardown & upgrade  (Read 577 times)

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Offline purf_man

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1975? CB550 fork teardown & upgrade
« on: November 24, 2012, 06:00:32 PM »
I bought some forks off eBay that claimed to be 1975 CB550 forks.  I need some new sliders for my bike and I scored these pretty cheap ($40 shipped with caliper and arm too)  So my plan was to tear these down and get some new tubes from Franks, fresh seals, clean up the lowers, etc.

I got the tubes out (those 6mm screws were a pain to break loose!!)

Looking in the tubes there seems to be a snap ring or something near the bottoms of them (about 4" or so up from the very bottom)  I can't get a good look at it and was wondering if this is something I need to remove (and how do I) to transfer to the new tubes? 

While I have them apart I am looking to upgrade the valving....I have seen the XS650 cartridge emulators seem to be popular as is putting the longer CB750 damper valves in the 550 forks)  I have also seen on other older bikes were a drill and plug method is used on the damper to change the valving by a tried and trued method (IE this is how the factory bikes were modded for racing etc)

My reasoning for picking up a spare set of forks was to have a set I could refresh and set off to the side for when I do final assembly on the bike (did the same with some spare wheel hubs for having my wheels laced up with)
1975 CB550
1978 RD400