Jetting help

[HondaRacing83]

I know its not a 400ex but i still need help and figured the ex section would be the most help. My buddy just bought a z400 and ordered a slip on with a k&n +outerwears and he has no idea where to start with jetting and quite frankly i dont either hah do these things have mikuni or keihin carbs

[cheater13]

Start by reading this: http://jetsrus.com/FAQs/FAQ_rejetting_101_how_to_rejet.htm

It helped me out when I was jetting my 400.