Gear Change & Carb/airbox/filter mods for stock exhaust (02 XR650L)


4 replies to this topic
  • XR650LIke

Posted July 13, 2004 - 01:38 AM

#1

I just bought a 2002 XR650L. Gearing seems way too tall for the kind of riding I'd like to do. Need to lower the gearing for riding trails/fire roads but still be able to do 60 - 70 MPH without buzzing the motor too hard. I've heard limited information about modifying the carb/jetting and snorkel/filter/airbox as well. I plan on keeping the stock exhaust. Live and ride in PA between 500-2500 feet in elevation. Any advice would be appreciated. Thanks for reading.

  • MotoChris521

Posted July 13, 2004 - 03:10 AM

#2

gearing wise i'd install a 14 on the front.
jetting/ airbox i'd install a UNI,remove top snorkle,remove smog octopus(IMS/baja designs)go to a 52 pilot,158 main,shim the needle.015-020",grind off tab on mixture screw.
And most important,Dispose of DeathWings and install decent tires :thumbsup:

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  • Buckarmadillo

Posted July 13, 2004 - 05:34 PM

#3

Damn.........that's all there is to say.

  • XR650L_Dave

Posted July 14, 2004 - 03:17 AM

#4

Add something to this: drill the vacuum ports in the slide out to 5/32 of an inch- this greatly improves throttle response.

Dave

  • hagen505

Posted July 14, 2004 - 04:47 PM

#5

There is a good article at 4strokes.com on how to remove the smog pump. It was free too, just find 2 pieces of metal for the block off plates. I kept my eyes open for a couple days and eventually found 2 pcs that fit perfectly without grinding, on the ground.





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