What is re-jetting

[johncam4]

what is it exactly and who has exhaust on their bikes.  I guess exhaust and re-jetting go together

[johncam4]

actually....first...what kind of exhaust have you guys used

[scratch]

Re-jetting is the replacing of the jets in the carburetors to change the air/fuel ratio. Changing the exhaust also affects the air/fuel ratio, thus you have to correct the change in the carburetors to compensate for the new exhaust.

[octane]

Along with jetting you'll also hear the terms lean and rich. Here's a little more on that: http://www.octaneonline.com/GSdyno.htm