I got this via e-mail from a member 'Waldo' who is not able to post just yet ( I did tell him how) but I thought I would just post it anyway.
From Waldo:
May 26/03
I have a problem with my 1981 Yamaha XS1100 in that it developed a "skip" in second gear. It was "hopping" in and out of gear when I accelerated. My mechanic took the motor apart and sent the 2nd and 5th gear to a machine shop to have them "undercut". He then put the motor back together. Sorry to say, it wasn't fixed - same problem. He is now tearing the motor apart again to investigate. Could you offer some possible scenerios on why the problem still exists? I did have the second gear, fifth gear and shifter forks replaced once already. I have put 30,000 KM on the bike since they were replaced. I was under the impression that "undercutting" the gear would have corrected the problem on a more permanent basis. What could have happened?
From Waldo:
May 26/03
I have a problem with my 1981 Yamaha XS1100 in that it developed a "skip" in second gear. It was "hopping" in and out of gear when I accelerated. My mechanic took the motor apart and sent the 2nd and 5th gear to a machine shop to have them "undercut". He then put the motor back together. Sorry to say, it wasn't fixed - same problem. He is now tearing the motor apart again to investigate. Could you offer some possible scenerios on why the problem still exists? I did have the second gear, fifth gear and shifter forks replaced once already. I have put 30,000 KM on the bike since they were replaced. I was under the impression that "undercutting" the gear would have corrected the problem on a more permanent basis. What could have happened?
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