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Message: <blockquote data-quote="mjlovstrom" data-source="post: 1384091" data-attributes="member: 90618">My 2004 FJR1300 with 88000 miles had a noticeable clunk coming the driveshaft and drive line when shifting and going on/off the thottle.  At first I thought it was U-joints so I replaced those but was not the problem.    Noticed excessive backlash at the Middle drive gear so re-shimmed that from .50 to .20 and made a big difference but still had clunk coming from final drive.   Removed final drive and noticed excessive backlash in the gears//  used a dial indicator to verify the measurement.   Took final drive apart, and actually just needed to use a pry-bar/ big screwdriver to remove main gear and bearing.   Measuring the shims I determined that it had previously been re-shimmed already from a .40 shim to a added/additional  .30 shim for a total of .70.     I replaced the .40 shim with a .50 and kept the .30 for a total of .80.   Re-installed and again made a nice difference in the shifting quality and will tighten it up a bit more this winter to  a total .90 in shims.You can read my post about re-shimming the middle drive gear-- very easy// takes about 30 minutes and $10.00 in shims.  It was obviously designed to be a maintenance item over time by the ease of the job.Makes riding the bike much more enjoyable.</blockquote>