engine swap

[polish pete]

hey guys im looking to do an engine swap with my 400ex, only thing is i dont know how hard it would be. i know you have to make new mounts and do a couple other modifications the frame for the motor to clear. but what else is there. im looking at a yz426 motor.also i want some peoples advice that have actually done this sort of thing.

[patches85]

Put a Hayabusa motor in it!:devil: :D

[TRXNIGHTRIDER]

i hate the yz426 it is so damn hard to start, well at least my buddies is

[krt400ex]

i dunno, i know a guy that has the 426 and it fires right up every time. 2-3 kicks