Tyrell Corp wrote: My 750R1 has wear here, as an advisory on the last MOT (uk annual roadworthiness check) . I replaced the top and bottom bushings and fork tubes but the wear is in the fork leg. Mileage is about 45k although I suspect bad maintenance and missed oil changes may be partly to blame. Also running them with worn bushings transferred the wear to the bodies and accelerated it.
I accept that this is abnormal wear, even kawasaki never listed the bottom bush as a part -only complete fork tube assembly.
That's my exact situation on the 550's as well. The lower Babbitt bushing is part of the fork tube, so it's not available separately. But the real problem on one of my high-milers... no clue how many, but many... the inside of the fork leg is no longer a perfect cylinder. The diameter is hogged out where the lower bushing would normally ride. It makes a very slight clunk if conditions are right... speed, braking force, maybe seating position etc. I spent hours trying to figure out where the clunk was as it feels like the head bearings, but I replaced them twice with tapered bearings and all of that was rock-solid. Eventually I figured out the fork leg was loose in just the right spot and would make a slight clunk.
