03 z400 carb

[skullracer34]

I have s 03 z400. I think it has a 36mm mikuni carb on it. If so would a 38mm kehin carb off a 400ex run better on it? Need advice thanks

[Kovatch]

It's been a few years, but I ran the FCR 39mm from a yfz 450 with a 400ex carb boot. That ran pretty well.

Given your mods, I don't see it having many issues as long as it would all fit with the airbox/carb/boot/etc.