yz400

I want to swap a slimmer YZ tank on to my 2001 WR426. I assume this YZ400 tank will fit but want to make sure. Also, will a YZ426 seat fit on the YZ400 tank? Thanks guys!

I am in the process of bringing an '00 Wr400 back to life. I am now in the electrical phase and discovered that the previous owner has damaged the stator and used the wrong type of flywheel puller because there are marks from puller arms on the back of the fly wheel. My question is how much...