jetting spreadsheet

3 replies to this topic
  • mikeolichney

Posted March 01, 2001 - 09:07 AM


I have an Excel spreadsheet that when you put in the altitude, temperature and jet settings for a properly jetted bike, it predicts the proper jetting at all other temps and altitudes. It prints out a chart that you can tape in your manual or toolbox. No math involved, just read the jetting off a temp vs altitude chart. And its FREE, thanks for all the help you guys have given me. I would like input on how it works for you, especially for the pilot jetting. I want to refine it and I need data. Tell me what jetting works best for your bike at a given temp and altitude, and what modifications you have on your engine. Email me at and I will send you a copy.

If you want more details see "high altitude jetting for 250F" topic in the 250F section.

  • XR650Surfer

Posted July 02, 2008 - 09:11 PM


Have any 03' 650R owners tried your spread sheet successfully? I'm having some high idle issues that I think are jetting related..

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  • SeaRap7

Posted July 03, 2008 - 07:27 AM


Wow you really hit the archive for this one. That spreadsheets gotta be dusty. I like the concept. Let us know if you get a response.

  • martinfan30

Posted July 03, 2008 - 09:31 AM


Email sent..


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