Need XR650 service manual info...



4 replies to this topic
  • Team_Towrope

Posted April 11, 2001 - 03:15 PM

#1

Can anyone tell me the specs from their XR650R manual for the following...

1) Primary Reduction Ratio
2) Gear ratios for 1 - 5
3) Front and rear sprocket tooth counts
4) Rear wheel radius in inches
5) Max RPM or rev limiter number

I'm trying to calculate top speed.

Thanks,
Dax

  • Flyingpig

Posted April 16, 2001 - 03:45 PM

#2

Primary reduction - 1.651
1st - 3.083
2nd - 2.125
3rd - 1.666
4th - 1.333
5th - 1.115
Sprockets - 14/48
Max RPM - 8500
Wheel and tire rad. - 13.25 inches to the top of the knobs.

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  • MOOSE

Posted April 16, 2001 - 06:27 PM

#3

Has anyone reduced the primary sprocket to, say 13? I can't really use the wicked top speed of the XR650R, but a little more gearing for the rocks and tight trails could be fun. Hey, with the stock sprocket it is still a tractor.

MOOSE

  • Team_Towrope

Posted April 17, 2001 - 07:03 AM

#4

Thanks for the info!

  • Clark_Mason

Posted April 20, 2001 - 06:07 PM

#5

I'm running 13/48 right now. I have tried 14/50, 13/50 and 13/48 in addition to sstock 14/48.

The 13/48 is what I'm sticking with for dual sport riding and general riding out of my garage. For tigher trails I would go to the 13/50 which requires a longer chain (112pins verses the stock 110 pin chain).

Clark





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