Re: XS 650 downshifting issues

 Ron wrote:

http://www.bikebandit.com/partsbandit/showschematic.asp?dept_idc9518

Item #4 is probably an eccentric stud used for adjusting the weird mechanism
that grabs the end of the shifter drum and turns it. It would be on the
clutch side of the engine if it's
like other Yamahas that I owned.

http://www.bikebandit.com/partsbandit/showschematic.asp?dept_idd3262

The shifter drum and shifter forks are inside the cases, the mickey mouse
stuff is behind the clutch cover.

http://www.bikebandit.com/partsbandit/showschematic.asp?dept_idd3262

Sometimes the circlips that locate the freewheeling gears wear out, and when
you try to shift, the wheel gear just gets pushed away from the dogs on the
sliding pinion gear.

Also, the dogs will get rounded off. especially on 2nd gear, so the gear has
to be replaced or the dogs undercut.

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Outstanding!

Thanks,

Ron
www.mondo-ron.com

 

Well, the XS650 is one of very few Jap bikes on which 20/50 is
recommended (as you know), so you could try refilling with that and see
if it behaves.


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