86 xr 600 bad 3rd gear

2 replies to this topic
  • hart

Posted August 06, 2003 - 03:55 AM


My buddy put a 660 kit from White Bros.in his 86 600. Fun power but he has had a bunch of problmes most recently a bad gear that broke and damaged the pison and cylinder. I'm just wondering if this transmission has any history of failing due to big bore kits?? Anybody have any experience with a 660 kit??


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  • jaybert600

Posted August 06, 2003 - 05:21 AM


Early model XR600's had problems with 3rd gear. This is common.

  • Moredesert

Posted August 06, 2003 - 02:37 PM


Riding with Trailboss Tours I've seen lots of trany problems on high milage XR600's. When I rebuilt my engine I had to replace 6 gears thats 3x2. It cost about $100 each.

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