hey i am new to working on motorcycles, I have an aftermarket exhaust a Tsukigi and I was wondering if the carb needs to be rejeted. I am on a 2002 zx6r and if i need parts can anyone tell me where i should get them or how much they are thanks for any help.

 

Every mod is gonna change how it runs, and you should optimize the settings to make best use of the performance gains. It will run fine without the jet, but once you get the mix tweaked you will get more power, just depends on how far you want to take it. Have fun with it, welcome back!