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XR650 - Jetting with Big Gun exhaust system?
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Posted by: twinpoint---------------------

Hi,

Can anyone tell me the jetting set-up for a 2001 XR650R that has been uncorked and has a Big Gun pipe and silencer?

I have a 175 Main and 65s pilot now and the bike runs way too lean throughout.

Thanks,

Rich

Posted by: junkjeeps---------------------

http://www.bajadesigns.com/2005%20W...racejetting.htm

Looks like you're running what Baja Designs recommends to get you in the ballpark. Sounds like you just need to get a few different bigger jets and move up until you get it right.

Posted by: OnAnySunday---------------------

Have you drilled out the side cover?
If so, yea it'll be a little lean.
Try a 185.

Posted by: twinpoint---------------------

Airbox panel has been drilled out - I will try a 185 main

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XR650 - Jetting with Big Gun exhaust system?

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