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Rotor/Caliper Issue

Started by scott_1200, January 21, 2012, 01:49:30 PM

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scott_1200

Thank you for the heads up on that.  I'll be sure to remove that screw before twisting on the damper rod.

Scott

Arnie

Scott,

You said, "I am also fighting against Mod-ous Improvement-ous Syndrom (MIS).  That is, the urge to modifiy the forks with cartridge emulators and new springs for improved feel and performance. Must resist....must resist......not enough time..."

Better advise to you is, DO NOT RESIST.  This is a huge improvement and you'll be glad to have the change.

I think Randy's new cartridge emulators are (finally) ready for sale and they don't even require you to drill holes in the damper rods.  He'll also get the parts to you v.quickly.  note: he doesn't pay me :-)

Arnie

Mark Olson

Mark O.
86 fj1200
sac ca.

                           " Get off your ass and Ride"

scott_1200

It's finally fixed!  The actual problem was the caliper mounting tabs on the lower fork.  The left fork mounting tabs were almost 1mm apart as measured from the rotor and the right side lower tab was about 0.5mm closer than the top tab. I filed and sanded down the lower mounting tab on both sides, more so on the left tab, a little at a time and keep test fitting everything.  I got the right caliper to almost perfectly centered and got the left caliper (the problem side) centered enough so it didn't rub any more.  I'd say about 2mm from touching.  It could still use another 2mm to 3mm in the caliper to center it over the rotor, but I didn't want to press my luck.  I put everything back together and went for a test ride.  Much, much better.  The pads are finally getting full contact with the rotor, but they still need to break in a bit more.

I never did get the forks apart and the bend was so slight, that it didn't make much of a difference compared to grinding the mounting tabs. In the end, it was the mounting tabs and not the forks.

Finally riding again! :>)

Scott

Dan Filetti

Good work!

Feels good to fix your own -eh?

Dan
Live hardy, or go home. 

scott_1200

Feels very good!  And many thanks to Randy from RPM for the suggestion to check the caliper mounts.  After talking over all the options with Randy, we decided to file back the lower mounts.  The offset in the mounting tabs was always there, it's just that the larger rotors amplified the problem to where it was noticeable.

Scott