jetting spreadsheet

3 replies to this topic
  • mikeolichney

Posted March 01, 2001 - 09:06 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.

  • mcarp

Posted March 14, 2001 - 01:55 PM


Hey Mike-

Please forward this along. email: Would love to check it out.

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  • mcarp

Posted March 14, 2001 - 01:57 PM


Sorry, please see post JETTING SUCCESS for settings and other parameters. I may have some other data to contribute. Effects on gearing changes mainly.

  • James_Dean

Posted March 14, 2001 - 10:39 PM



Could you take mcarp's JETTING SUCCESS exactly as he posted it (50F)and project it to 30F, 70F, and 90F ? And then maybe 50F at 5000ft elev.?

Post it here if you would.




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